# Quantum companies in United States Compare quantum companies with an address in United States. Confirm service areas and capabilities before you engage. 46 quantum companies. Also on the [web page](https://quantumcompanies.fyi/us). ## Quantum companies 1. [Forward Photonics](https://quantumcompanies.fyi/us/ma/woburn/forward-photonics.md), Quantum components, 10C Commerce Way, Woburn: Develops high-power semiconductor lasers including Quantum Cascade lasers for defense, industrial, and scientific applications. Technology originated at MIT… 2. [Freedom Photonics](https://quantumcompanies.fyi/us/ca/santa-barbara/freedom-photonics.md), Quantum components, 41 Aero Camino, Santa Barbara: Freedom Photonics, now part of Quantum Computing Inc., produces photonic solutions including diffraction-limited 1550 nm lasers, amplifiers, and fast… 3. [Innovative Photonic Solutions](https://quantumcompanies.fyi/us/nj/plainsboro/innovative-photonic-solutions.md), Quantum components, 313 Enterprise Dr, Plainsboro: Develops and manufactures wavelength-stabilized lasers including narrow linewidth lasers for quantum computing, femtosecond lasers, and lasers for… 4. [Toptica Photonics Inc](https://quantumcompanies.fyi/us/ny/pittsford/toptica-photonics-inc.md), Quantum components, 1120 Pittsford Victor Rd, Pittsford: Develops and manufactures narrow linewidth lasers for quantum computing, femtosecond lasers for microscopy, and lasers for semiconductor inspection and… 5. [Chicago Quantum Exchange](https://quantumcompanies.fyi/us/il/chicago/chicago-quantum-exchange.md), Quantum consulting and training, 5640 S Ellis Ave, Chicago: Midwest-based consortium of universities, national labs, and nearly 70 industry partners advancing quantum research, workforce development, and economic… 6. [Longwave Photonics](https://quantumcompanies.fyi/us/ca/mountain-view/longwave-photonics.md), Quantum components, 958 San Leandro Ave Ste 300, Mountain View: LongWave Photonics provides terahertz Quantum Cascade Laser (QCL) systems for imaging, spectroscopy, and heterodyne receivers, offering milliwatt power levels… 7. [Maybell Quantum Industries](https://quantumcompanies.fyi/us/co/denver/maybell-quantum-industries.md), Quantum components, 7100 Broadway Ste De Bldg 3, Denver: Builds dilution refrigerators (Fast Fridge, Fridge, Fridge+, Big Fridge) and wiring solutions, magnets & accessories for quantum computing. 8. [Nexus Photonics](https://quantumcompanies.fyi/us/ca/goleta/nexus-photonics.md), Quantum components, 6500 Hollister Ave Ste 150, Goleta: Develops single-chip photonic integrated circuits for quantum and emerging technologies, applying wafer-scale semiconductor manufacturing to enable production… 9. [ODE, L3C](https://quantumcompanies.fyi/us/wy/sheridan/ode-l3c.md), Quantum software and algorithms, Sheridan: Offers QLEAN (Quantum Logical Electrons and Nuclei) for quantum computational chemistry; a social enterprise pursuing quantum science, technology and research… 10. [Quantinuum](https://quantumcompanies.fyi/us/co/broomfield/quantinuum.md), Quantum hardware, Broomfield: Builds trapped-ion quantum computers (System Models H1, H2) and offers Helios Hardware-as-a-Service, Quantum Origin QRNG, InQuanto computational chemistry… 11. [Quantum Opus Plymouth](https://quantumcompanies.fyi/us/mi/plymouth/quantum-opus-plymouth.md), Quantum sensing and metrology, 14841 Keel St, Plymouth: Provides superconducting nanowire single-photon detection systems (SNSPDs) with high efficiency and low noise, used by NASA, NIST, Fermilab. 12. [QuintessenceLabs](https://quantumcompanies.fyi/us/ca/san-jose/quintessencelabs.md), Quantum networking and QKD, San Jose: Develops quantum-enhanced cybersecurity products including CV-QKD systems, a quantum true random number generator, key and policy management, and PQC readiness… 13. [Advent Diamond](https://quantumcompanies.fyi/us/az/tempe/advent-diamond.md), Quantum components, Tempe: Manufactures all-diamond semiconductor components and doped diamond structures for applications including defense, telecommunications, sensing, and quantum… 14. [Atom Computing](https://quantumcompanies.fyi/us/ca/berkeley/atom-computing.md), Quantum hardware, Berkeley: Builds highly scalable, gate-based quantum computers with arrays of optically trapped neutral atoms; AC1000 system offers 1,200+ fully-connected qubits;… 15. [Brightlight Photonics](https://quantumcompanies.fyi/us/ma/cambridge/brightlight-photonics.md), Quantum components, Cambridge: Builds CMOS-compatible on-chip Titanium:Sapphire lasers, amplifiers and low-loss visible/UV photonic circuits for biomedicine, metrology and quantum… 16. [Chattanooga Quantum Collaborative](https://quantumcompanies.fyi/us/tn/chattanooga/chattanooga-quantum-collaborative.md), Quantum consulting and training, Chattanooga: Regional collaborative preparing Chattanooga for quantum technology through a learning center, resource hub, industry events and promotion of the local quantum… 17. [Danaher Cryogenics](https://quantumcompanies.fyi/us/co/boulder/danaher-cryogenics.md), Quantum components, Boulder: Builds sub-Kelvin cryostats for research, including continuous and one-shot systems, ADR cryostats, and Leiden dilution refrigerators with sorption coolers. 18. [EigenQ](https://quantumcompanies.fyi/us/tx/quantum-researchers-austin/eigenq.md), Post-quantum cryptography vendors, QUANTUM RESEARCHERS Austin: Offers the PQC+ hardware platform in PCIe and M.2 form factors providing hardware-rooted device identity, attestation and lasting data privacy for government,… 19. [Elevate Quantum](https://quantumcompanies.fyi/us/co/arvada/elevate-quantum.md), Quantum components, Arvada: US quantum tech hub/consortium accelerating quantum commercialization; operates commercialization labs with rapid-turn photonic integrated circuit fabrication… 20. [enQase](https://quantumcompanies.fyi/us/tx/austin/enqase.md), Post-quantum cryptography vendors, Austin: enQase offers a quantum-safe encryption platform with cryptographic inventory, NIST-compliant post-quantum cryptography (PQC), quantum random number generation… 21. [FieldLine Inc.](https://quantumcompanies.fyi/us/co/boulder/fieldline-inc.md), Quantum sensing and metrology, Boulder: Makes the HEDscan wearable magnetoencephalography system based on optically-pumped magnetometer quantum sensors, plus magnetic shields and high-density helmets. 22. [FieldLine Industries](https://quantumcompanies.fyi/us/co/boulder/fieldline-industries.md), Quantum sensing and metrology, Boulder: Builds scalar magnetometers using batch-fabricated vapor cell technology for magnetic anomaly detection on UAV/UUV and land, air and sea platforms; products… 23. [Icarus Quantum](https://quantumcompanies.fyi/us/co/boulder/icarus-quantum.md), Quantum networking and QKD, Boulder: Develops a scalable entangled photon generator for secure communication and quantum connectivity. 24. [Infleqtion](https://quantumcompanies.fyi/us/co/boulder/infleqtion.md), Quantum hardware, Boulder: Builds neutral atom quantum computers, quantum sensing systems (Tiqker atomic clock, RF spectrum sensing, inertial sensing) and quantum software for… 25. [LFI](https://quantumcompanies.fyi/us/tx/dallas/lfi.md), Quantum consulting and training, Dallas: Vendor-independent governance partner helping advanced manufacturers adopt quantum computing, sensing and security, from quantifying economic value to building… 26. [Monarch Quantum](https://quantumcompanies.fyi/us/ca/san-diego/monarch-quantum.md), Quantum components, San Diego: Delivers Quantum Light Engines: integrated photonics hardware combining electronics, systems engineering and advanced manufacturing for quantum computing,… 27. [Montana Instruments](https://quantumcompanies.fyi/us/mt/bozeman/montana-instruments.md), Quantum components, Bozeman: Manufactures closed-cycle optical cryostats and cryogenic modules such as CryoAdvance and Cryostation, with Galaxy control software; describes itself as a… 28. [Montana Photonics & Quantum Alliance](https://quantumcompanies.fyi/us/mt/bozeman/montana-photonics-and-quantum-alliance.md), Quantum consulting and training, Bozeman: Industry alliance for photonics and quantum companies, academia and government in Montana, offering a member directory, benefits, training, events, a job board… 29. [OEwaves](https://quantumcompanies.fyi/us/ca/pasadena/oewaves.md), Quantum components, Pasadena: Develops photonics products including narrow-linewidth lasers, noise analyzers and RF/mmWave/THz test systems; lists quantum technology, metrology and sensing… 30. [Photon Spot](https://quantumcompanies.fyi/us/ca/monrovia/photon-spot.md), Quantum components, Monrovia: Makes cryogenic systems reaching below 1 Kelvin without liquid helium and superconducting nanowire single-photon detectors; products used in NASA missions, by… 31. [Qolab](https://quantumcompanies.fyi/us/ca/goleta/qolab.md), Quantum hardware, Goleta: Quantum hardware company engineering industrial-grade superconducting QPUs, using wafer-scale integration and advanced semiconductor packaging to bond qubit… 32. [Qrypt](https://quantumcompanies.fyi/us/ny/new-york/qrypt.md), Post-quantum cryptography vendors, New York: Provides quantum-secure encryption products, including quantum entropy services, an appliance, an IPsec gateway, and digital quantum key distribution. 33. [Quantum Computing Data](https://quantumcompanies.fyi/us/ca/san-rafael/quantum-computing-data.md), Quantum software and algorithms, San Rafael: Conducts research in high-performance quantum computation, developing scalable quantum simulation and benchmarking workflows on modern HPC and GPU… 34. [Quantum Computing Inc](https://quantumcompanies.fyi/us/nj/hoboken/quantum-computing-inc.md), Quantum components, Hoboken: Subsidiaries page of Quantum Computing Inc describing acquired photonics businesses: NHanced Semiconductors makes 3DIC and 2.5D assemblies; Optogration makes… 35. [Quantum Rings](https://quantumcompanies.fyi/us/co/boulder/quantum-rings.md), Quantum software and algorithms, 5360 Arapahoe Ave, Ste G \#1099, Boulder: Offers a platform for large-scale quantum circuit simulation on classical hardware plus access to real QPUs from leading providers through one API, and a free… 36. [Quantum XChange](https://quantumcompanies.fyi/us/md/bethesda/quantum-xchange.md), Post-quantum cryptography vendors, Bethesda: Offers Phio TX, a FIPS 140-3 and FIPS 203 validated post-quantum key management and cryptographic management platform deployable in cloud, virtual, container… 37. [QURECA](https://quantumcompanies.fyi/us/ma/cambridge/qureca.md), Quantum consulting and training, Cambridge: Provides online quantum training courses, customised quantum training for business, educational partnerships with academia, quantum talent recruitment, and… 38. [QuSpin](https://quantumcompanies.fyi/us/co/louisville/quspin.md), Quantum sensing and metrology, Louisville: Manufactures quantum magnetometers including optically pumped zero-field and total-field sensors used in biomagnetism, geophysics, defense and research. 39. [Rigetti Computing](https://quantumcompanies.fyi/us/ca/california/rigetti-computing.md), Quantum hardware, California: Builds quantum computers and quantum processing units, including the nine-qubit Novera system, using dilution-refrigerated hardware. 40. [SandboxAQ](https://quantumcompanies.fyi/us/ny/tarrytown/sandboxaq.md), Post-quantum cryptography vendors, 303 South Broadway, Tarrytown: Builds AI and quantum-related technologies including Large Quantitative Models for simulation, AQtive Guard for cryptography management, and AQNav sensing… 41. [SEEQC](https://quantumcompanies.fyi/us/ny/elmsford/seeqc.md), Quantum hardware, Elmsford: Develops a digital quantum computing platform that integrates core quantum computer functions on a digital chip using superconducting electronics at… 42. [SkyWater Technology](https://quantumcompanies.fyi/us/mn/bloomington/skywater-technology.md), Quantum components, Bloomington: US semiconductor foundry offering quantum solutions and superconducting process technology to develop, integrate and scale quantum computing and sensing… 43. [Vector Atomic](https://quantumcompanies.fyi/us/ca/pleasanton/vector-atomic.md), Quantum sensing and metrology, Pleasanton: Engineers atomic clocks, inertial sensors and an atomic gravimeter for navigation and timing networks; rackmount optical atomic clocks validated versus… 44. [Vescent](https://quantumcompanies.fyi/us/co/golden/vescent.md), Quantum components, 14998 W. 6th Ave., Suite 700, Golden: Designs and manufactures low-SWaP lasers, optical frequency combs and controllers enabling quantum-scale timing, sensing, navigation and computing; solutions… 45. [XMA](https://quantumcompanies.fyi/us/nh/syracuse/xma.md), Quantum components, Syracuse: Manufactures RF and microwave components including cryogenic products such as IR filters, attenuators and terminations for space, telecom, mil/aerospace and… 46. [Zapata Quantum](https://quantumcompanies.fyi/us/ma/boston/zapata-quantum.md), Quantum software and algorithms, Boston: Quantum software company offering Quantum Pilot, an application discovery and development platform; teams with NVIDIA on agentic AI for quantum algorithm… ## States - [CA](https://quantumcompanies.fyi/us/ca.md): 12 quantum companies - [CO](https://quantumcompanies.fyi/us/co.md): 11 quantum companies - [MA](https://quantumcompanies.fyi/us/ma.md): 4 quantum companies - [NY](https://quantumcompanies.fyi/us/ny.md): 4 quantum companies - [TX](https://quantumcompanies.fyi/us/tx.md): 3 quantum companies - [MT](https://quantumcompanies.fyi/us/mt.md): 2 quantum companies - [NJ](https://quantumcompanies.fyi/us/nj.md): 2 quantum companies - [AZ](https://quantumcompanies.fyi/us/az.md): 1 quantum company - [IL](https://quantumcompanies.fyi/us/il.md): 1 quantum company - [MD](https://quantumcompanies.fyi/us/md.md): 1 quantum company - [MI](https://quantumcompanies.fyi/us/mi.md): 1 quantum company - [MN](https://quantumcompanies.fyi/us/mn.md): 1 quantum company - [NH](https://quantumcompanies.fyi/us/nh.md): 1 quantum company - [TN](https://quantumcompanies.fyi/us/tn.md): 1 quantum company - [WY](https://quantumcompanies.fyi/us/wy.md): 1 quantum company ## Cities - [Boulder, CO](https://quantumcompanies.fyi/us/co/boulder.md): 6 quantum companies - [Bozeman, MT](https://quantumcompanies.fyi/us/mt/bozeman.md): 2 quantum companies - [Cambridge, MA](https://quantumcompanies.fyi/us/ma/cambridge.md): 2 quantum companies - [Goleta, CA](https://quantumcompanies.fyi/us/ca/goleta.md): 2 quantum companies - [Arvada, CO](https://quantumcompanies.fyi/us/co/arvada.md): 1 quantum company - [Austin, TX](https://quantumcompanies.fyi/us/tx/austin.md): 1 quantum company - [Berkeley, CA](https://quantumcompanies.fyi/us/ca/berkeley.md): 1 quantum company - [Bethesda, MD](https://quantumcompanies.fyi/us/md/bethesda.md): 1 quantum company - [Bloomington, MN](https://quantumcompanies.fyi/us/mn/bloomington.md): 1 quantum company - [Boston, MA](https://quantumcompanies.fyi/us/ma/boston.md): 1 quantum company - [Broomfield, CO](https://quantumcompanies.fyi/us/co/broomfield.md): 1 quantum company - [California, CA](https://quantumcompanies.fyi/us/ca/california.md): 1 quantum company - [Chattanooga, TN](https://quantumcompanies.fyi/us/tn/chattanooga.md): 1 quantum company - [Chicago, IL](https://quantumcompanies.fyi/us/il/chicago.md): 1 quantum company - [Dallas, TX](https://quantumcompanies.fyi/us/tx/dallas.md): 1 quantum company - [Denver, CO](https://quantumcompanies.fyi/us/co/denver.md): 1 quantum company - [Elmsford, NY](https://quantumcompanies.fyi/us/ny/elmsford.md): 1 quantum company - [Golden, CO](https://quantumcompanies.fyi/us/co/golden.md): 1 quantum company - [Hoboken, NJ](https://quantumcompanies.fyi/us/nj/hoboken.md): 1 quantum company - [Louisville, CO](https://quantumcompanies.fyi/us/co/louisville.md): 1 quantum company - [Monrovia, CA](https://quantumcompanies.fyi/us/ca/monrovia.md): 1 quantum company - [Mountain View, CA](https://quantumcompanies.fyi/us/ca/mountain-view.md): 1 quantum company - [New York, NY](https://quantumcompanies.fyi/us/ny/new-york.md): 1 quantum company - [Pasadena, CA](https://quantumcompanies.fyi/us/ca/pasadena.md): 1 quantum company - [Pittsford, NY](https://quantumcompanies.fyi/us/ny/pittsford.md): 1 quantum company - [Plainsboro, NJ](https://quantumcompanies.fyi/us/nj/plainsboro.md): 1 quantum company - [Pleasanton, CA](https://quantumcompanies.fyi/us/ca/pleasanton.md): 1 quantum company - [Plymouth, MI](https://quantumcompanies.fyi/us/mi/plymouth.md): 1 quantum company - [QUANTUM RESEARCHERS Austin, TX](https://quantumcompanies.fyi/us/tx/quantum-researchers-austin.md): 1 quantum company - [San Diego, CA](https://quantumcompanies.fyi/us/ca/san-diego.md): 1 quantum company - [San Jose, CA](https://quantumcompanies.fyi/us/ca/san-jose.md): 1 quantum company - [San Rafael, CA](https://quantumcompanies.fyi/us/ca/san-rafael.md): 1 quantum company - [Santa Barbara, CA](https://quantumcompanies.fyi/us/ca/santa-barbara.md): 1 quantum company - [Sheridan, WY](https://quantumcompanies.fyi/us/wy/sheridan.md): 1 quantum company - [Syracuse, NH](https://quantumcompanies.fyi/us/nh/syracuse.md): 1 quantum company - [Tarrytown, NY](https://quantumcompanies.fyi/us/ny/tarrytown.md): 1 quantum company - [Tempe, AZ](https://quantumcompanies.fyi/us/az/tempe.md): 1 quantum company - [Woburn, MA](https://quantumcompanies.fyi/us/ma/woburn.md): 1 quantum company ## Categories - [Quantum components](https://quantumcompanies.fyi/category/quantum-components.md) - [Quantum sensing and metrology](https://quantumcompanies.fyi/category/quantum-sensing.md) - [Quantum consulting and training](https://quantumcompanies.fyi/category/quantum-consulting.md) - [Quantum software and algorithms](https://quantumcompanies.fyi/category/quantum-software.md) - [Post-quantum cryptography vendors](https://quantumcompanies.fyi/category/post-quantum-cryptography.md) - [Quantum hardware](https://quantumcompanies.fyi/category/quantum-hardware.md) - [Quantum networking and QKD](https://quantumcompanies.fyi/category/quantum-networking.md) - [Quantum cloud access](https://quantumcompanies.fyi/category/quantum-cloud.md)