AdTech Optics

AdTech Optics is a California-based company founded in 2001, specializing in the design, engineering, and manufacturing of mid-infrared semiconductor lasers based on quantum cascade technology. Located in City of Industry, California, AdTech Optics advanced beyond traditional semiconductor lasers in 2005, committing to the emerging field of quantum cascade lasers (QCLs). The company manufactures state-of-the-art mid-infrared QCLs for defense, environmental monitoring, and medical industries. AdTech Optics is a privately owned corporation employing approximately 35 people and received ISO 9001:2008 certification in 2015, demonstrating commitment to quality management. In January 2018, AdTech Photonics, Inc. acquired AdTech Optics, Inc., with the combined entity continuing to manufacture and expand the quantum cascade laser portfolio. AdTech’s QCL technology serves quantum sensing applications requiring mid-infrared spectroscopy, including trace gas detection, chemical identification, and environmental monitoring. The company’s quantum cascade lasers provide critical components for quantum sensing systems and spectroscopy applications across defense and scientific research sectors.

Aeluma

Aeluma is a Goleta, California-based semiconductor company founded in 2019, developing quantum dot laser technology for silicon photonics applications in quantum computing and communication. The company pioneered advanced semiconductor manufacturing techniques using high-performance compound semiconductor materials on large-diameter substrates for mass-market microelectronics. Aeluma joined AIM Photonics as full industry member to accelerate quantum dot laser integration onto silicon photonics platforms using 300mm MOCVD capability. In May 2025, Aeluma and Thorlabs unveiled breakthrough large-diameter wafer manufacturing platform for quantum computing and communication, incorporating quantum dot sources and highly nonlinear electro-optic materials. The company trades on OTCQB under ticker ALMU, serving AI infrastructure, defense, aerospace, automotive, AR/VR, mobile, and quantum computing markets with photonic integrated circuit solutions.

Aeponyx

Aeponyx was a Montreal-based photonic integrated circuit (PIC) company founded in 2012, acquired by Pasqal on June 3, 2025. The company spent a decade in R&D developing its PIC platform combining Silicon Nitride (SiN) and Micro-Electro-Mechanical-Systems (MEMS) technologies, raising $22 million in venture capital. Aeponyx’s PIC platform served telecom, datacom, life science, automotive, and quantum markets with applications requiring stable, precise optical control. The acquisition by Pasqal brought Aeponyx’s 27-person team and intellectual property under CEO Philippe Babin’s continued leadership, replacing delicate optical setups with chip-scale photonic circuits dramatically increasing stability of atom control and precision of individual qubit manipulation for Pasqal’s neutral-atom quantum computers. Aeponyx strengthens Pasqal’s photonic control capabilities accelerating development of fault-tolerant quantum computing systems.

Akela Laser

AKELA Laser Corporation is a New Jersey-based manufacturer of high-power laser diodes and custom photonic solutions serving medical, industrial, laser pumping, defense, and security applications. Founded in 2003 and relocated to its present facility in Jamesburg, NJ in 2014, AKELA provides a broad range of laser diodes with wavelengths ranging from 635nm to 2 microns. The company specializes in custom laser assemblies that offer any desired combination of light source, optics, cooling, and drivers tailored to specific application requirements. AKELA’s laser diode technology supports quantum photonics research, quantum sensing applications, and serves as critical components in quantum computing systems requiring precise optical control. With expertise in high-power diode laser manufacturing and custom photonic integration, AKELA Laser serves both commercial and government customers developing next-generation quantum technologies.

Alpes Lasers

Alpes Lasers S.A. is a Swiss engineering company and manufacturer specializing in quantum cascade lasers (QCLs) and infrared lasers for scientific, industrial, and medical applications. Founded as a spin-off from the University of Neuchâtel by physicists Jérôme Faist, Antoine Muller, and Matthias Beck, the company pioneered the commercialization of quantum-cascade laser technology. Alpes Lasers is a leader in developing optoelectronic devices in the Mid-Infrared (MIR) and Near-Infrared (NIR) range, with applications in gas detection, spectroscopy, and quantum sensing. The company’s QCL technology leverages quantum mechanical principles for advanced photonics applications, making them a key supplier to quantum research institutions and industries requiring precise infrared light sources. With over 25 years of experience, Alpes Lasers maintains its position as a global technology leader in quantum cascade laser systems.

Aluvia Photonics

Aluvia Photonics is a pioneering provider of photonic integrated circuits based on proprietary aluminium oxide (AlOx/Al2O3) material platform, founded in 2022 as a University of Twente spin-off. The technology was developed over more than a decade at the University of Twente by cofounder Prof. Sonia Garcia Blanco and her research team. Aluvia’s AlOx platform offers broad spectral range from 200 nm to mid-IR (~3 µm) covering UV, visible, and infrared applications, ultra-low propagation losses as low as ~1 dB/cm at 369 nm and ~5 dB/m at 1550 nm, and on-chip optical amplification through rare-earth ion doping (Er3+, Yb3+, Nd3+, Tm3+). Using 200mm CMOS-compatible materials, Aluvia ensures compatibility with established manufacturing infrastructure for cost-effective scalability. Applications include quantum computing (ion traps), advanced telecommunications, sensing, optical amplifiers, O-band switches, and biomedical fields. Aluvia provides turnkey solutions including multi-project wafers, dedicated runs, and custom process development.

Ayar Labs

Ayar Labs is an MIT spin-out pioneering optical I/O chiplets that integrate silicon photonics with CMOS electronics, featuring 70 million transistors and over 10,000 optical devices per chip. The company partners with GlobalFoundries, TSMC, Intel, and AMD for high-volume manufacturing of in-package optical interconnect solutions including the SuperNova light source and TeraPHY optical I/O chiplet. Ayar Labs raised $155 million Series D led by Intel, AMD, and Nvidia, with commercial offerings expected between projected 2026-2028 for AI infrastructure and data center applications.

CCRAFT

CCRAFT is a Swiss-based photonic chip foundry launched in April 2025 as a CSEM spin-off, committed to advancing thin-film lithium niobate (TFLN) technology for scalable, high-volume manufacturing. CCRAFT is the world’s first production-ready pure-play foundry offering chips based on TFLN technology, built on over six years of pioneering R&D at CSEM (Swiss Center for Electronics and Microtechnology). CEO and founder Hamed Sattari leads the company headquartered in Neuchâtel. TFLN chips promise up to 8 times higher speed and consume up to 10 times less energy than conventional optical components, enabling data transmission beyond 1.6 Tbit/s. CCRAFT manufactures photonic integrated circuits for optical communication, AI data centers, and quantum technologies. With planned expansion in Neuchâtel, CCRAFT aims to reach 12 million chips annual output by targeting 2030, targeting up to 30% of the global market for high-speed photonic circuits.

Coherent

Coherent is a vertically integrated supplier of lasers, photonic devices, and laser measurement systems for communications, electronics, and instrumentation markets. The company manufactures silicon photonics, VCSEL arrays, lenses, filters, isolators, laser sources, and measurement equipment serving quantum photonics applications, industrial processing, and optical networking. Coherent provides comprehensive coherent transceivers and modules for global communications networks and quantum systems. The company was formed through the 2022 merger of II-VI and Coherent Inc.

Diamond Quanta

Diamond Quanta is a semiconductor innovation company pioneering breakthrough lab-grown diamond technology with its ‘Unified Diamond Framework’ for true substituent doping. The company develops advanced power electronics and quantum photonic platforms, leveraging diamond’s superior thermal conductivity and charge carrier mobility for high-performance applications. Diamond Quanta is backed by Silicon Catalyst and Plug and Play Tech Center, with strategic investment from Heller Industries and CoreLabs Capital announced in September 2025.

Dotz Nano

Dotz Nano is an Israeli nanotechnology company established to commercialize graphene quantum dot production processes developed at Rice University’s Tour Labs. Founded by Prof. James Tour and Dr. Michael Stein, the company initially focused on graphene quantum dots (GQDs) but around 2018 pivoted to using carbon quantum dots for tracking and anti-counterfeiting solutions. Dotz Nano now offers a range of nano and micro materials, including graphene quantum dots and carbon dots for use in tracing, anti-counterfeiting, and product-liability applications. The company went public on the Australian Stock Exchange (ASX: DTZ) in November 2016, raising capital to commercialize its quantum dot technologies. Headquartered in Petah Tikva, Israel, Dotz Nano represents the commercial application of quantum dot science to solve real-world supply chain security and product authentication challenges, bridging quantum materials research with practical industrial applications.

ELUXI

ELUXI Ltd is a UK-based specialist photonics distributor supplying leading-edge lasers, optics, fiber optics, amplifiers, light sources, and detectors as both standard products and custom solutions for the UK and Ireland markets. Operating from purpose-built facilities at the Advanced Technology Innovation Centre within Loughborough University Science and Enterprise Parks in Loughborough, England, ELUXI serves the quantum photonics sector by providing access to cutting-edge photonics components essential for quantum research and development. The company was founded by executives with successful careers in Pan-European distribution companies at senior levels and higher degrees in photonics disciplines. ELUXI distributes products from leading global photonics manufacturers, enabling UK and Irish quantum researchers and companies to access specialized components for quantum computing, quantum sensing, and quantum communications applications. By bridging manufacturers and end-users, ELUXI plays a critical role in the UK quantum photonics supply chain, supporting the development of quantum technologies through efficient access to specialized photonics components and expert technical support.

EPFL

École Polytechnique Fédérale de Lausanne (EPFL) is a research institute and university founded in 1969 (origins to 1853), located in Lausanne, Switzerland. EPFL conducts leading quantum research through Center for Quantum Science and Engineering advancing quantum computing quantum photonics quantum communications and quantum technologies. The university excels in photonic quantum computing quantum optics and quantum information processing. EPFL researchers contribute to quantum algorithms quantum hardware quantum networks and quantum applications. The university has produced quantum technology spinouts and maintains strong quantum industry partnerships. EPFL serves quantum research community through quantum research quantum education and technology transfer advancing quantum photonics and quantum information science supporting Swiss quantum technology leadership.

Ephos

In September 2024, Ephos, a leading producer of glass-based photonic chips, raised $8.5 million in seed funding and opened the world’s first facility dedicated to designing and producing glass-based photonic chips in Milan. Ephos’ proprietary technology designs and builds glass-based photonic chips offering best-in-class performance for signal loss, a critical advantage in building quantum computers. The company’s novel 3D design and manufacturing capabilities unlock unique scaling opportunities and computational modalities that enable better system performance. The funding round was led by Starlight Ventures, with participation from notable investors including Joe Zadeh (former Vice President at Airbnb), Diego Piacentini (former Senior Vice President at Amazon), and Simone Severini (General Manager of Quantum Technologies at Amazon Web Services). Glass-based photonic chips have far-reaching implications beyond quantum computing, with applications in data centers where they can reduce energy footprints.

Exail

Exail Technologies is a French industrial company formed in 2022 from the merger of ECA Group and iXBlue, specializing in cutting-edge technologies in autonomous robotics, navigation, aerospace, and photonics. Led by CEO Dominique Giannoni, Exail’s quantum sensing division leverages decades of research from former students and colleagues of 2022 physics Nobel Prize winner Alain Aspect. In 2021, Exail acquired Muquans, the world’s first company to commercialize industry-grade quantum sensors founded by Aspect’s former students. Exail develops quantum gravimeters, quantum accelerometers, and quantum inertial navigation systems exploiting quantum advantages for precision measurement. The company is involved in the CARIOQA-PMP European project developing a space-grade quantum gravimeter for Earth and climate monitoring. In 2022, Exail demonstrated a 3-axis hybrid quantum accelerometer, advancing toward drift-free inertial navigation systems. Headquartered in Paris, Exail represents France’s strategic leadership in quantum sensing for defense, aerospace, navigation, and scientific applications.

Hamamatsu Photonics

Hamamatsu Photonics manufactures photonic devices and optical sensors for quantum technologies, including photomultiplier tubes (PMTs), single-photon avalanche diodes (SPADs), and qCMOS cameras for trapped ion and neutral atom quantum computing. Recent products include the ORCA-Quest 2 qCMOS camera with faster readout and enhanced UV sensitivity, plus their first commercial optically pumped magnetometer (OPM) for ultra-low magnetic field detection in quantum sensing. Hamamatsu acquired NKT Photonics in 2022 to strengthen its quantum photonics capabilities.

InnovationQuarter

InnovationQuarter is the regional development agency for Zuid-Holland province in the Netherlands, founded in 2005 and based in The Hague, investing in innovative companies including quantum technology and quantum security startups. InnovationQuarter participated in Q*Bird’s 2.5 million euro funding round in May 2024, supporting Delft-based quantum key distribution company. The organization provides investment capital, business development support, and ecosystem connections to high-tech startups and scale-ups in Zuid-Holland region, home to quantum technology clusters in Delft, Leiden, and Rotterdam. InnovationQuarter focuses on deep tech including quantum technologies, photonics, life sciences, and cleantech. The organization serves Zuid-Holland quantum ecosystem connecting startups with QuTech research center, TNO, universities, and corporate partners. InnovationQuarter invests in quantum communications, quantum security, quantum sensing, and quantum computing companies commercializing research from Delft University of Technology and Leiden University. The organization contributes to Netherlands quantum technology leadership building innovation infrastructure and supporting growth of quantum startups in one of Europe’s leading quantum technology regions.

IPG Photonics

IPG Photonics manufactures fiber lasers and amplifiers including single-frequency linearly polarized sources for quantum computing applications. The company offers optical frequency combs for biomedical sensing, metrology, and quantum computing, along with specialized ultrafast lasers that deliver compact and efficient solutions purpose-built for quantum systems. IPG Photonics works directly with major quantum computing companies providing high-performance laser sources critical for quantum operations.

Company Information

• Founded: 1990
• Country: United States
• Website: https://www.ipgphotonics.com
• Categories: quantum photonics, hardware

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LIGENTEC

LIGENTEC is a B2B manufacturer of photonic integrated circuits for AI, quantum technologies, LiDAR, and biosensors, spun off in 2016 from Professor Tobias Kippenberg’s lab at the Federal Institute of Technology (EPFL) in Lausanne, Switzerland, by Michael Geiselmann, Michael Zervas, and Tobias Kippenberg. Headquartered near EPFL in Lausanne with offices near X-Fab in Corbeil-Essonnes, France, LIGENTEC specializes in commercializing all-nitride-core technology. The company is a Swiss-based semiconductor manufacturing partner offering low-loss SiN photonic integrated circuits (PICs) for quantum technologies, LiDAR, communications, space, and sensors. LIGENTEC raised $8.78 million from investors including Horizon Europe, EIC Accelerator, Foundation for Technological Innovation, and Venture Kick. LIGENTEC serves quantum computing applications requiring ultra-low-loss photonic components for qubit control and quantum state manipulation.

Lightmatter

Lightmatter is a Boston-based photonic supercomputer company founded in 2017 by CEO Nick Harris, Chief Scientist Darius Bunandar, and COO Thomas Graham, raising $400 million Series D in October 2024 at $4.4 billion valuation with total capital of $850 million. The round was led by T. Rowe Price Associates, with participation from Fidelity Management & Research Company and GV (Google Ventures). Lightmatter’s Passage technology addresses AI infrastructure challenges by leveraging 3D-stacked photonics chips to move data, dramatically increasing AI cluster bandwidth and performance while reducing power consumption. The company builds the fastest interconnect layer using photonic chips developed since 2018. CEO Nick Harris indicated the Series D is likely the last private funding round before a potential IPO. Lightmatter will ready Passage for mass deployment in partner data centers, enabling scaling required for sustained AI innovation.

LioniX International

LioniX International is a Netherlands-based leading global provider of customized microsystem solutions specializing in photonic integrated circuits (PICs) and MEMS technologies. Originally founded as Lion Photonics in 2001 by Hans van De Vlekkert and René Heideman, the company grew through the merger of three Dutch start-ups: Satrax BV, XiO Photonics BV, and LioniX BV in 2016. Based in Enschede, Netherlands, LioniX has developed the industry-leading TriPleX silicon nitride waveguide technology platform enabling applications ranging from AR/VR, biosensing, and telecom to photonic quantum computing. The company’s quantum photonics capabilities support quantum sensing, quantum processing, and quantum encryption applications. In January 2023, a Dutch consortium invested €3.5 million in LioniX International to drive growth in photonic integrated circuits for quantum applications. LioniX has been instrumental in the Enschede/Twente quantum ecosystem, collaborating with spin-off companies and research institutions to advance European quantum photonics capabilities.

LongWave Photonics

LongWave Photonics is a California-based company founded in 2010 by Alan Lee and Qing Hu, specializing in terahertz quantum cascade laser (QCL) systems for imaging, spectroscopy, and heterodyne receivers. Based in Mountain View, California’s Silicon Valley, LongWave Photonics offers compact, turnkey terahertz QCL systems with milliwatt average power levels available across frequencies from 1.9 to 5 THz. The company’s systems operate cryogen-free, require no optical alignment, and provide convenient terahertz sources for research and industrial applications. LongWave Photonics has received funding from institutional investor Innobridge Capital and the National Science Foundation through SBIR grants supporting NASA-related quantum photonics projects. The company’s terahertz quantum cascade lasers serve quantum sensing, spectroscopy, and imaging applications requiring compact, reliable terahertz radiation sources. LongWave Photonics addresses the terahertz gap in the electromagnetic spectrum, providing quantum photonics solutions for security screening, materials characterization, astronomical detection, and fundamental physics research requiring terahertz frequency sources.

Lumenisity

Lumenisity is a UK-based photonics company founded in 2017 as spinout from University of Southampton developing hollow core fiber technology for quantum communications and telecommunications. The company CoreSmart hollow core fibers enable ultra-low latency data transmission and enhanced security ideal for quantum key distribution (QKD) networks. Lumenisity was acquired by Microsoft in 2022 to advance hollow core fiber deployment for cloud and quantum networking infrastructure. The company technology reduces signal latency and improves data security compared to traditional solid core optical fibers. Lumenisity serves telecommunications operators, financial services, cloud providers, and quantum communication networks requiring ultra-fast secure data transmission. The company contributes to quantum communications infrastructure development advancing quantum-safe networking and quantum internet infrastructure.

Lumentum

Lumentum is a market-leading designer and manufacturer of optical and photonic products including laser chips, coherent transceivers, pump lasers, and photonic components. Their ultra-high-power, high-efficiency lasers are integrated into NVIDIA’s Quantum-X Photonics networking switches, and their products enable optical networking and photonic innovations critical for quantum and AI infrastructure. Lumentum operates major semiconductor facilities in San Jose, California, producing components for quantum technologies and advanced computing systems.

Company Information

• Founded: 2015
• Country: United States
• Website: https://www.lumentum.com
• Categories: quantum photonics, hardware

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Lytid

Lytid is a French photonics company specializing in the development and commercialization of terahertz laser sources based on quantum cascade laser (QCL) technology. Co-founded by Pierre Gellie and Jean-Charles Roche, the company builds on more than 20 years of applied research on QCL technology through Prof. Carlo Sirtori of the Matériaux et Phénomènes Quantiques laboratory at Paris Diderot University. Lytid’s product portfolio includes deep-cooled SWIR cameras, ultra-fast Mid-IR QWIP detectors, terahertz sources based on quantum cascade lasers, and Sub-THz sources based on Schottky diode technology. The company serves quantum sensing, spectroscopy, and imaging applications across research and industrial markets. Based in Paris, Lytid represents France’s commitment to advancing quantum photonics technologies for next-generation sensing and detection applications.

Menlo Systems

Menlo Systems is a spin-off from the Max Planck Institute for Quantum Optics specializing in Nobel Prize-winning optical frequency comb technology for precision metrology and quantum applications. The company delivers ultrastable lasers, femtosecond lasers, terahertz systems, and complete turnkey systems for quantum technology 2.0, combining frequency combs with ultrastable reference lasers for quantum optics, spectroscopy, time/frequency distribution, and semiconductor testing. Menlo Systems has global presence in US, Japan, and China serving quantum research and industrial applications.

Miraex

Miraex is a Swiss company that designs and manufactures quantum sensing and computing photonic systems, and builds quantum integrated circuits for high-sensitivity measurements. The company specializes in photonic quantum technologies including integrated quantum photonics chips for sensing applications. Miraex provides custom quantum photonic solutions for research institutions and industrial clients requiring ultra-precise quantum measurements.

Company Information

• Founded: 2020
• Country: Switzerland
• Website: https://miraex.com
• Categories: quantum photonics, quantum sensing

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Munich Quantum Instruments

Munich Quantum Instruments develops state-of-the-art photonic quantum sensors for applications such as optical quantum computing, quantum sensing, and quantum communication. The company is part of the Munich Quantum Valley ecosystem and specializes in creating high-performance single-photon detectors and quantum light sources. Munich Quantum Instruments provides critical components for photonic quantum systems.

Company Information

• Founded: 2023
• Country: Germany
• Website: https://munichquantuminstruments.com
• Categories: quantum photonics, hardware

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Nano-Meta Technologies

Nano-Meta Technologies is an Indiana-based company creating technology that advances optical and quantum computing through development of nano-scale optical components and novel materials. The company received early investment from Quantum Wave Fund and develops metamaterials for super-resolution imaging, sensing, energy conversion, and biomedical applications. Nano-Meta’s innovations enable new generations of quantum photonic devices.

Company Information

• Founded: 2012
• Country: United States
• Website: https://nanometa.com
• Categories: quantum photonics, quantum materials

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Nanoco Technologies

Nanoco Technologies Ltd is a UK-based nanotechnology company that spun out from the University of Manchester in 2001, specializing in the development and large-scale production of cadmium-free quantum dots and other electronic-grade nanomaterials. Co-founded by Dr. Nigel Pickett, who invented Nanoco’s key quantum dot scale-up technology, the company is unique in the nanomaterials market as a manufacturer of high-grade quantum dots at commercial volumes. Since 2004, Nanoco has focused research efforts on cadmium-free quantum dot development, addressing environmental and health concerns while maintaining performance for applications in LCD displays, LED lighting, sensors, solar cells, and bio-imaging technologies. In October 2024, Dmitry Shashkov joined as Chief Executive Officer. Dr. Nigel Pickett, co-founder and CTO, announced retirement from the board in 2024 but remains with the company until February 2026. Publicly traded and based in Manchester, Nanoco represents British innovation in quantum materials commercialization.

Nanosys

Nanosys is a California-based nanotechnology company founded by Larry Bock, Charles Lieber, and Paul Alivisatos, specializing in the development and manufacture of quantum dot materials for display applications. Headquartered in Milpitas, California’s Silicon Valley, the company operates a state-of-the-art quantum dot nanomaterials fabrication facility and holds a robust intellectual property portfolio with numerous patents. As of 2023, industry-leading consumer electronics brands have shipped over 70 million devices in more than 1,000 unique products based on Nanosys’ proprietary quantum dot technology, including tablets, monitors, and televisions. In September 2023, Nanosys was acquired by Shoei Chemical, Inc., with its world-class quantum dot research and development team and Silicon Valley laboratories now integrated into Shoei’s operations. Dr. Martin Devenney serves as CEO, succeeding Jason Hartlove who led the company from 2008 to 2023. Nanosys’ quantum dot enhancement films (QDEF) represent a major commercial success in applying quantum materials science to consumer technology.

Nucrypt

Nucrypt manufactures photonic instrumentation, including quantum entanglement generation, distribution, and measurement systems. The company develops advanced photonic components and systems for quantum communication, quantum key distribution, and quantum sensing applications. Nucrypt provides hardware solutions for quantum networks and secure quantum communication infrastructure with focus on practical deployment of quantum technologies.

Company Information

• Founded: 2019
• Country: United States
• Website: https://nucrypt.com
• Categories: quantum photonics, hardware

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ORCA Computing

ORCA Computing is a University of Oxford spinout founded in 2019 that develops photonic quantum computers using single photons and linear optical quantum computing, creating quantum systems that can operate at room temperature without requiring complex cryogenic cooling, focusing on near-term quantum applications in optimization and machine learning through their cloud-accessible photonic quantum processors, working to demonstrate quantum advantage in practical applications while building partnerships with enterprises and research institutions seeking photonic quantum computing solutions.

Phantom Photonics

Phantom Photonics is a NATO DIANA company spun out from the University of Waterloo’s Institute for Quantum Computing, developing advanced quantum sensors with unmatched noise resilience for space, underwater, and long-distance applications. The company’s cutting-edge technology for quantum 3D remote sensing was developed at the Quantum Photonics Lab by Alex Maierean, Dr. Shihan Sajeed, and Prof. Thomas Jennewein. Phantom’s quantum coherence-based sensors offer superior noise resilience, covert functionality, and imperviousness to adversarial disabling, enabling undersea asset monitoring and anti-collision systems for satellites. The company raised $320K in funding and plans its first marine sensor network demonstration by end of 2025.

Photon Spot

Photon Spot is a California-based company specializing in sub-Kelvin cryogenic systems and superconducting nanowire single-photon detectors (SNSPDs) for quantum technology applications. Founded in 2009 and headquartered in Monrovia, California, the company offers detectors with ultralow dark counts, precise timing resolution, and high quantum efficiency, combined with cryogenic systems operating at temperatures below 1 Kelvin. Photon Spot’s products serve quantum communications, quantum computing, quantum sensing, and semiconductor diagnostics applications. The company’s ultra-compact, ultra-low vibration cryogenic systems support time-resolved imaging applications benefiting integrated circuit manufacturers and quantum technology researchers. Primary customers include research institutions, national laboratories, and companies engaged in quantum-related research and development. Backed by investors including the National Science Foundation, Photon Spot represents American innovation in single-photon detection technology critical to photonic quantum computing, quantum key distribution, and quantum metrology applications.

PicoQuant

PicoQuant is a leading research and development company specialized in optoelectronics, founded in 1996 and headquartered in Berlin-Adlershof science and technology park, Germany, as a worldwide leader in single photon counting applications. The company’s products for photon counting include high-end modules for time-correlated single photon counting (TCSPC) and event timing, single photon sensitive detectors, and specialized analysis software for time-resolved fluorescence measurements and quantum correlations. PicoQuant’s photon counting detectors include photomultiplier tubes (PMT), Hybrid photomultiplier detectors (HPD), and Single Photon Avalanche Diodes (SPAD) covering spectral ranges between UV and NIR with timing resolutions in the picosecond range. The PDM SPAD series covers 400 nm to 1000 nm with better than 50 ps (FWHM) photon timing resolution. PicoQuant’s product portfolio encompasses picosecond pulsed diode lasers, ultra-fast time taggers, photon counters, single photon detectors, time-resolved confocal microscopes, and fluorescence lifetime spectrometers for life sciences, materials sciences, and quantum technologies.

Pilot Photonics

Pilot Photonics is a Dublin-based laser product development company founded in 2011, specializing in unique photonic integrated circuit (PIC)-based laser products exceeding capabilities of current market offerings. The company was spun out from DCU and Tyndall National Institute based on a decade of photonics research at two Irish centers of excellence. Pilot Photonics developed the world’s only photonic integrated comb laser source, an optical comb source bringing benefits to optical communication networks, gas sensing, and atomic clocks used in satellites for GPS navigation. In 2025, Pilot Photonics secured major European funding to develop key technologies for Co-Packaged Optics (CPO) scaling. Based at DCU Alpha in Dublin, the company serves telecommunications, sensing, and quantum technology markets with advanced laser and PIC solutions enabling quantum computing and quantum communication applications.

PINC Technologies

PINC Technologies is a Pasadena-based Caltech spinout founded in 2023 that develops scalable nonlinear photonic integrated circuits for quantum computing applications. The company emerged from stealth in October 2025 with $6.8 million in seed funding led by BootstrapLabs, with participation from Catalus Capital and Convergent Ventures, to unlock scalable nonlinearity for photonic chips through their proprietary NanoPPLN platform. PINC’s technology brings high-performance nonlinear optics to integrated photonic circuits, enabling applications in quantum computing, optical sensing, artificial intelligence, data networks, biomedical devices, atomic clocks, lidar, and metrology. The company’s NanoPPLN platform addresses the missing scalable nonlinearity in photonic integrated circuits, making nonlinear optics fully integrated and scalable for next-generation quantum and photonic systems, contributing to advances in quantum photonics and enabling new capabilities across multiple technological domains requiring integrated nonlinear optical components. The seed funding will be used to scale production of their NanoPPLN chips and expand commercial partnerships in quantum computing and photonic systems industries.

Pixel Photonics

Pixel Photonics develops advanced photonic components and systems for quantum computing and quantum communication applications. The German company specializes in integrated photonics and silicon photonics technologies that enable scalable quantum systems. Pixel Photonics creates building blocks for photonic quantum processors and quantum networks.

Company Information

• Founded: 2023
• Country: Germany
• Website: https://pixelphotonics.com
• Categories: quantum photonics, hardware

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Plessey Semiconductors

Plessey Semiconductors is a UK-based leading developer of advanced optoelectronic technology solutions, operating as the UK’s only LED manufacturer and the only LED maker globally commercializing LEDs on silicon substrates using their award-winning proprietary GaN-on-Silicon platform. The company has connections to quantum technology through partnerships integrating Nanoco Technologies’ cadmium-free quantum dot semiconductor nanoparticle technology into their monolithic microLED displays for augmented reality and virtual reality applications. With leading-edge 150mm and 200mm wafer processing facilities in Plymouth and comprehensive photonic characterization laboratories, Plessey provides full-field emissive microLED displays combining high-density RGB pixel arrays with CMOS backplanes, with potential applications in optical processing units for AI operations that are faster and more energy-efficient than traditional silicon devices.

Prenishq

Prenishq Pvt. Ltd. is a Delhi-based quantum hardware company incubated at IIT Delhi, selected for support under India’s National Quantum Mission (NQM) and the National Mission on Interdisciplinary Cyber-Physical Systems (NMICPS). The company develops and commercially deploys high-precision diode laser systems essential for quantum computing and sensing technologies. Prenishq’s precision diode-laser systems are critical components for controlling quantum states in quantum processors, quantum communication systems, and quantum sensing applications. Union Minister Dr. Jitendra Singh announced Prenishq’s selection as one of eight pioneering startups supported by the Department of Science and Technology’s quantum technology initiative, establishing India’s competitive position in the global quantum technology race.

PsiQuantum

In September 2025, PsiQuantum announced the closing of a $1 billion Series E funding round, valuing the company at $7 billion and enabling construction of utility-scale quantum sites in Brisbane, Australia, and Chicago, United States. The round was led by affiliates of BlackRock and backed by Temasek, Baillie Gifford, Macquarie Capital, Ribbit Capital, NVentures, Adage Capital Management, the Qatar Investment Authority, Type One Ventures, Counterpoint Global, 1789 Capital and S Ventures. The company secured significant funding from the Australian and Queensland governments in 2024 to build the world’s first utility-scale, fault-tolerant quantum computer in Brisbane with target completion by the end of 2027. In February 2025, DARPA selected PsiQuantum to advance to the final phase of its Utility-Scale Quantum Computing Program. On April 15, 2025, PsiQuantum secured a $10.8 million contract with the Air Force Research Laboratory (AFRL). The company is now breaking ground on major facilities in both Chicago and Brisbane, building million-qubit scale fault-tolerant quantum computers using high-volume manufacturing of integrated photonic chips and 300 mm wafers produced at GlobalFoundries Fab 8 in New York.

Q-Block Computing

Q-Block Computing is a vertically integrated quantum computing startup focused on delivering fault-tolerant quantum devices for advanced computation, communication, and sensing. The company commercializes a scalable and integrated quantum photonic platform called the Q-block module, inspired by today’s superscalar processing architectures with distributed precision timing. Q-block modules are deployed as exquisite quantum clocks and resilient quantum communication devices for the defense and security sector. The company offers miniature interference-filter-based external cavity diode lasers and monolithic thermally-compensated laser resonators that have been stabilized to control complex atoms and photons in quantum systems.

Quan2D Technologies

Quan2D Technologies is a Bengaluru-based quantum hardware company selected for support under India’s National Quantum Mission by the Department of Science and Technology (DST). The company specializes in developing superconducting nanowire single-photon detectors (SNSPDs) for quantum communication, quantum computing, and quantum sensing applications. Quan2D’s SNSPDs are critical components enabling quantum key distribution, satellite-based secure quantum communications, and multi-node quantum networks. The company contributes to India’s goal of developing satellite-based secure quantum communications between ground stations over 2000 km within India, long-distance secure quantum communications with other countries, and inter-city quantum key distribution networks with quantum memories.

Quanfluence

Quanfluence is a Bengaluru-based quantum technology startup founded in 2021 by Sujoy Chakravarty, Aditi Vaidya, Biman Chattopadhyay, Gopal Krishna Nayak, Ravi Mehta, and Anil Prabhakar. The company develops photonics-based quantum solutions including single photon detectors, advanced computing hardware, Ising machines, and qubits quantum computers. Quanfluence’s Optical Ising Machine addresses problems modeled using variables and dependencies, while their continuous-variable (CV) photonic quantum computer with 1000s of qubits is designed to tackle complex problems beyond classical computers. The company raised $2 million in seed funding led by Pi Ventures, with participation from Golden Sparrow and Reena Dayal of the Quantum Ecosystems and Technology Council of India (QETCI). Quanfluence’s vision is to build a general-purpose, fault-tolerant quantum computer for solving real-world, meaningful problems.

QuantLR

QuantLR is an Israeli quantum technology startup founded in 2018 developing quantum sensing and photonic technologies. The company focuses on quantum sensors for precision measurement, quantum imaging, and quantum-enhanced detection systems. QuantLR develops photonic quantum technologies including quantum light sources and quantum detectors for scientific and industrial applications. The company serves defense, aerospace, medical imaging, and scientific research sectors requiring quantum-enhanced sensing capabilities. QuantLR collaborates with research institutions and industry partners advancing quantum sensing technology commercialization. The company represents Israel quantum technology ecosystem contributing to quantum sensing and quantum photonics advancement for practical applications requiring ultra-precise measurements and quantum-enhanced detection capabilities.

Quantum Machines

In 2024-2025, Quantum Machines is hosting the AQC25 (Adaptive Quantum Circuits Conference) taking place November 12-14, 2025, in Boston, bringing together global experts from MIT, Yale, USC, Google Quantum AI, and Amazon Braket to advance adaptive quantum methods and define the future of scalable quantum computing applications. A Novera QPU has been co-located at the Israeli Quantum Computing Center (IQCC) with Quantum Machines’ OPX1000 control system and NVIDIA’s Grace-Hopper superchip servers. This setup was leveraged for a reinforcement learning project presented at IEEE Quantum Week 2024 in September, demonstrating the optimization of single qubit operations on the Novera QPU for quantum machine learning development. Quantum Machines continues to collaborate with tech firms such as Classiq to develop hybrid quantum-classical computing systems aimed at tackling challenging computational problems, with control systems scaling to support large numbers of qubits needed for error correction.

Quantum Source Labs

Quantum Source Labs is an Israeli quantum computing company founded in 2021 developing scalable photonic quantum computers. The company focuses on deterministic single-photon sources addressing major bottleneck in photonic quantum computing enabling large-scale quantum processors. Quantum Source raised $50 million Series A funding in 2023 led by Eclipse Ventures with participation from Insight Partners and others. The company technology enables generation of on-demand indistinguishable single photons critical for photonic quantum computing scalability. Quantum Source serves quantum computing industry developing next-generation photonic quantum processors for computational applications requiring quantum advantage. The company collaborates with quantum research institutions and industry partners advancing photonic quantum computing technology and contributing to Israel quantum technology leadership.

qutools

qutools is a Munich-based company specializing in quantum optics instrumentation and photonic quantum technology equipment. The company manufactures single-photon detectors, quantum random number generators, and complete quantum optics setups for research and education. qutools provides essential instrumentation for quantum physics laboratories and quantum technology development worldwide.

Company Information

• Founded: 2008
• Country: Germany
• Website: https://qutools.com
• Categories: quantum photonics, hardware

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Sacher Lasertechnik

Sacher Lasertechnik GmbH is a German manufacturer and technology leader specializing in high-power tunable external cavity diode lasers for scientific and industrial applications. Founded by Dr. Joachim R. Sacher, one of the pioneers of diode lasers with external cavity, the company evolved from a university spin-off to a globally recognized technology leader over 30 years. Sacher Lasertechnik offers a comprehensive portfolio of laser product families based on patented technology for applications in quantum technology, general research, spectroscopy, metrology, environmental science, biomedicine, space technology, and process control. The company’s sub-kHz tunable diode lasers are specifically designed for advanced quantum applications, making them essential suppliers to quantum computing research labs and quantum sensing projects worldwide. Based in Marburg, Germany, Sacher Lasertechnik celebrated its 30th anniversary in 2022, demonstrating sustained innovation in laser technologies for quantum and photonics applications.

SDT

SDT Inc. (Quantum Standard Technology) is a South Korean quantum technology company founded in 2017 with headquarters in Seoul, pioneering quantum computing, quantum cloud, quantum communication, and quantum sensing commercialization. Founded by CEO Jiwon Yune, who studied physics and electronic engineering at MIT and worked as a researcher at MIT-Harvard University Research Center and KIST Quantum Information Research Center, SDT is leading development of South Korea’s first full-stack quantum computer. In August 2024, SDT secured 10 billion KRW (approximately $7.5 million USD) in Pre-IPO investment from Shinhan Venture Investment to commercialize quantum computers, with milestones to develop a 64-qubit superconducting quantum computer by 2026 and photonic integrated circuit quantum computers by 2027. SDT is jointly developing quantum processing units based on silicon spin and diamond nitrogen-vacancy quantum technologies with Seoul National University and the Korea Institute of Science and Technology. The company is advancing South Korea’s National Strategy for Quantum Technology and building the domestic quantum ecosystem.

Singular Photonics

Singular Photonics is a manufacturer of photonic detectors for quantum computing developing on-chip photon number resolving detectors for fault tolerance in quantum computing applications. The company is backed by Qubits Ventures and specializes in creating advanced detection systems that enable more reliable photonic quantum computers. Their technology addresses critical scalability challenges in photonic quantum systems.

Company Information

• Founded: 2023
• Country: United States
• Website: https://singularphotonics.com
• Categories: quantum photonics, hardware

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Technical University of Denmark

Technical University of Denmark (DTU) is a public technical university founded in 1829, located in Kongens Lyngby, Denmark. DTU conducts quantum research advancing quantum photonics quantum communications and quantum technologies. The university Center for Silicon Photonics advances integrated quantum photonics development. DTU researchers contribute to quantum hardware quantum networks and quantum applications. The university collaborates with Danish and European quantum companies advancing quantum technology commercialization. DTU serves quantum research community through quantum research quantum education and technology transfer supporting Danish quantum technology ecosystem and Nordic quantum innovation.

Thorlabs

Thorlabs Inc. is an American privately held optical equipment company founded in 1989 by Alex Cable in spare bedroom in Freehold, New Jersey, relocating headquarters to Newton, New Jersey, named after founder’s black Labrador retriever Thor. The company designs and manufactures components, instruments, and systems for photonics industry providing portfolio of over 22,000 stocked items with custom solutions enabled by vertical integration. Thorlabs operates with approximately 2,500 employees at manufacturing and sales offices in United States, Canada, United Kingdom, Germany, France, Sweden, Japan, China, and Brazil achieving annual sales of approximately $500 million as of 2018. In 2014, Thorlabs acquired Corning Inc.’s quantum cascade lasers line expanding quantum capabilities. Thorlabs offers quantum technologies including correlated photon-pair sources using spontaneous parametric down-conversion (SPDC), single-photon detectors, and quantum optics educational kits for research and education purposes in quantum computing laboratories globally.

TuringQ

TuringQ is China’s first optical quantum computing company established in 2021 by Professor Jin Xianmin from Shanghai Jiaotong University, specializing in photonic quantum processors using lithium niobate on insulator (LNOI) photonic chips and femtosecond laser direct writing technology, with products including the TuringQ Gen 1 fully integrated optical quantum computer and FeynmanPAQS quantum simulation software, having completed 500 million yuan ($79 million) in funding and established China’s first photonic chip pilot line in Wuxi for applications in financial technology, biomedicine, and artificial intelligence.

University of Bristol

University of Bristol is a red brick research university founded in 1876, located in Bristol, United Kingdom. Bristol conducts world-leading quantum photonics research advancing photonic quantum computing quantum communications and quantum technologies. The university Quantum Engineering Technology Labs and Quantum Engineering Centre for Doctoral Training advance quantum hardware development. Bristol has produced quantum technology spinouts including PsiQuantum and Orca Computing. The university serves quantum research community through quantum research quantum education and technology transfer supporting UK quantum technology leadership positioning Bristol as global quantum photonics research leader.

Vexlum

Vexlum is a spin-off from the Optoelectronics Research Centre (ORC) at Tampere University of Technology specializing in novel semiconductor lasers for quantum technology applications. The company develops VECSELs (Vertical External Cavity Surface Emitting Lasers) providing high-power low-noise single-frequency lasers with broad wavelength coverage in the visible and near infrared. Vexlum’s innovative laser technology enables practical quantum computing systems by providing the precision light sources required for manipulating quantum states. With approximately 25 employees, the company serves quantum computing, medical, and semiconductor industries.

Wave Photonics

Wave Photonics is a Cambridge-based integrated photonics company founded in May 2021 by University of Cambridge quantum photonics PhDs James Lee and Matthew Anderson along with CTO Mateusz Kubica. The company received £4.5 million ($5.8M) in seed funding in June 2024 co-led by UK Innovation & Science Seed Fund and Cambridge Enterprise Ventures, with participation from Redstone QAI Ventures’ Quantum Fund, Kyra Ventures, and Deep Tech Labs. Complemented by non-dilutive grants from Horizon Europe EIC Fund and Innovate UK, Wave Photonics’ total funding reached £5.4 million ($6.9M). The company develops on-chip photonics designs for quantum technologies, sensors, and data-center applications, building and validating computational photonics design technology to reduce photonic product development time and unlock the transformative potential of integrated photonics. Wave Photonics leads consortium projects pioneering quantum computing applications leveraging photonic integrated circuits.

Xanadu

In early 2025, Xanadu demonstrated Aurora, a significant advancement in photonic quantum computing featuring a modular and networked architecture that combines 35 photonic chips networked together via 13 kilometers of fiber optics to perform all essential functions for comprehensive quantum computing. In May 2025, Xanadu partnered with Applied Materials to develop high-volume fabrication processes for superconducting transition edge sensors, with teams planning to demonstrate a 300 mm platform by the end of 2025 to advance photonic quantum computing toward utility-scale applications. In March 2025, Xanadu and Corning partnered to develop low-loss optical fibre interconnects for photonic quantum computing chips, aiming to scale fault-tolerant quantum computers towards one million qubits. In June 2025, Xanadu opened a $10 million advanced photonic packaging facility in Toronto, Canada, to manufacture components for fault-tolerant quantum computers, addressing a critical gap in the Canadian quantum supply chain. In August 2025, Xanadu and HyperLight demonstrated waveguide losses below 2 dB/m in thin-film lithium niobate (TFLN) photonic chips.