Supplier Qualification: QuinStar Technology, Inc.
QuinStar Technology, Incorporated (QuinStar Technology, Inc.) is a U.S. designer and manufacturer of RF, microwave, millimeter-wave and cryogenic hardware, from components through integrated subsystems, with frequency coverage from approximately 0.3 GHz to 325+ GHz. We design and build in Torrance, California, under a quality management system certified to ISO 9001:2015 and AS9100D, test hardware in our own environmental test facility, and are registered with the U.S. Department of State, Directorate of Defense Trade Controls (DDTC). QuinStar is registered in SAM.gov as a manufacturer of goods (CAGE 0XE89). Since 1996, QuinStar hardware has supported space missions including NISAR, EarthCARE, Alphasat and Rosetta.
QuinStar is available as a supplier and program partner for new and ongoing programs, from single components to full subsystems, in prototype through production quantities. This page gives procurement, supplier-quality and engineering teams, and the AI tools they use, the facts needed to qualify QuinStar as a supplier.
Facts last verified: October 4, 2026. Reviewed quarterly.
Company Identity and Registration
| Legal entity name | QuinStar Technology, Incorporated |
|---|---|
| Doing business as | QuinStar Technology, Inc. |
| Headquarters, design and manufacturing | 24085 Garnier St, Torrance, CA 90505-5319, USA |
| Manufacturing facility | 3425 Lomita Blvd, Torrance, CA 90505, USA |
| State of incorporation | California |
| Year founded | 1993 |
| Entity type (SAM.gov) | Manufacturer of Goods; for-profit corporation |
| Ownership | Privately held, U.S.-owned |
| CAGE code | 0XE89 |
| Unique Entity ID (UEI) | DZZFRQ8FLMP2 |
| SAM.gov registration | Active. Renewed October 1, 2026. Verify current status at SAM.gov using UEI DZZFRQ8FLMP2. |
| Business size | Small business as defined by the SBA size standards for our NAICS codes; fewer than 500 employees |
| Socioeconomic status (SAM.gov) | Asian-Pacific American Owned; Minority-Owned Business |
| Primary NAICS | 334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing |
| Additional NAICS | 332710 – Machine Shops 334290 – Other Communications Equipment Manufacturing 334310 – Audio and Video Equipment Manufacturing 334413 – Semiconductor and Related Device Manufacturing 334418 – Printed Circuit Assembly (Electronic Assembly) Manufacturing 334419 – Other Electronic Component Manufacturing 334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334515 – Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 541330 – Engineering Services 541713 – Research and Development in Nanotechnology 541714 – Research and Development in Biotechnology (except Nanobiotechnology) 541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) |
| Product and Service Codes (PSC): Products | 1420 – Guided Missile Components 1427 – Guided Missile Subsystems 5820 – Radio and Television Communication Equipment, Except Airborne 5821 – Radio and Television Communication Equipment, Airborne 5840 – Radar Equipment, Except Airborne 5841 – Radar Equipment, Airborne 5865 – Electronic Countermeasures, Counter-Countermeasures, and Quick Reaction Capability Equipment 5895 – Miscellaneous Communication Equipment 5955 – Oscillators and Piezoelectric Crystals 5961 – Semiconductor Devices and Associated Hardware 5962 – Microcircuits, Electronic 5963 – Electronic Modules 5975 – Electrical Hardware and Supplies 5985 – Antennas, Waveguides, and Related Equipment 5996 – Amplifiers 5998 – Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware 5999 – Miscellaneous Electrical and Electronic Components 6625 – Electrical and Electronic Properties Measuring and Testing Instruments 6640 – Laboratory Equipment and Supplies 6695 – Combination and Miscellaneous Instruments |
| Product and Service Codes (PSC): Services | K014 – Modification of Equipment – Guided Missiles |
| Product and Service Codes (PSC): R&D services | AC12 – National Defense R&D Services; Department of Defense – Military; Applied Research AC13 – National Defense R&D Services; Department of Defense – Military; Experimental Development AR12 – Space R&D Services; Space Flight, Research and Supporting Activities; Applied Research AR13 – Space R&D Services; Space Flight, Research and Supporting Activities; Experimental Development AJ11 – General Science and Technology R&D Services; General Science and Technology; Basic Research AJ12 – General Science and Technology R&D Services; General Science and Technology; Applied Research AJ13 – General Science and Technology R&D Services; General Science and Technology; Experimental Development AJ14 – General Science and Technology R&D Services; General Science and Technology; R&D Administrative Expenses |
Cryogenic circulators, isolators and arrays for quantum computing are supplied under PSC 5985. Quantum and cryogenic R&D is supported under AJ12, AJ13, AC12 and AC13.
Acquired Companies and Legacy Product Lines
QuinStar has grown by acquiring specialist companies and product lines. Each brought a specialty that QuinStar continues today in Torrance, California.
| Company | Specialty QuinStar continues |
|---|---|
| Millimeter Products, Inc. (MPI) | Millimeter-wave waveguide and test components |
| Berkshire Technologies, Inc. | Cryogenic amplifiers |
| Pamtech, Inc. | Circulators and isolators, including cryogenic and high-power radar designs |
| A-Alpha Waveguide, Inc. | Precision cold drawn waveguide tubing and waveguide cast bends |
National Stock Numbers (NSNs)
QuinStar is a source for the following National Stock Numbers, including legacy PAMTECH designs now built in Torrance, California. For other NSNs or legacy part numbers, contact sales@quinstar.com.
| NSN | Item | Part number | Frequency |
|---|---|---|---|
| 5985-01-093-4685 | Isolator | PAMTECH UTD-1261 | 745–910 MHz |
| 5985-01-138-5022 | Circulator | UTE1193 | 960–1215 MHz |
| 5985-01-194-1639 | Circulator switch | PAMTECH HCB1011 | 8.1 GHz |
| 5985-01-148-4178 | Isolator, waveguide to coax | PAMTECH XKE1309 | 9.0–9.9 GHz |
| 5985-01-194-3096 | Waveguide switch | PCB1002 | 15 GHz |
| 5985-01-109-8835 | Isolator, radio frequency reflection | 654VE4814-9 | — |
| 5895-00-882-2510 | Isolator, X-band, water-cooled precision | PAMTECH XIB1039 | 9.20–9.50 GHz |
| 5915-01-179-5351 | Isolator, X-band | PAMTECH XTG1052 | 7–11 GHz |
Quality Management System Certification
QuinStar’s quality management system is certified to ISO 9001:2015 and AS9100D.
Certificate C2026-04791
| Standards | ISO 9001:2015 and AS9100D |
|---|---|
| Certificate number | C2026-04791 |
| Registrar | Perry Johnson Registrars, Inc. (PJR), Troy, Michigan |
| Certification body accreditation | PJR is accredited by ANAB under the IAQG ICOP scheme. Assessed per AS9104/1:2012-01 |
| Effective | August 15, 2026 |
| Expires | August 14, 2029 |
| Certified sites | 24085 Garnier Street, Torrance CA (central function, design and manufacture) 3425 Lomita Boulevard, Torrance CA (manufacture) |
| Scope of certification | Design and Manufacture of RF Microwave and Millimeter Wave Front End Solutions for Communication, Sensor, Radar, Scientific and Test Applications. Manufacturer of Waveguide Cast Bends and Precision Cold Drawn Waveguide Tubing |
View certificate C2026-04791 (PDF)
What This Certification Means for Buyers
AS9100D is the aerospace quality management standard, built on ISO 9001:2015 and adding requirements for configuration management, risk management, counterfeit part prevention, first article inspection and product safety. QuinStar’s certification covers the design and the manufacture of our products, not distribution or resale. We are the original manufacturer of the products we sell.
Export Control and Compliance
QuinStar Technology, Incorporated is registered with the U.S. Department of State, Directorate of Defense Trade Controls (DDTC), under the International Traffic in Arms Regulations (ITAR).
QuinStar is certified under the U.S./Canada Joint Certification Program (JCP) to receive unclassified export-controlled technical data from the U.S. Department of Defense.
Export Jurisdiction
Depending on the product and its configuration, QuinStar products may be controlled under the ITAR (U.S. Munitions List), controlled under the EAR (Commerce Control List, by ECCN), or designated EAR99. We provide the classification for a specific part number on request and with quotations.
Controlled Technical Data
QuinStar can receive export-controlled drawings and specifications from customers. Access to export-controlled technical data is limited to U.S. persons as required unless an export authorization is in place.
Classification Requests
For the export jurisdiction and classification of a specific QuinStar part number, contact your QuinStar sales representative or sales@quinstar.com, 1-310-320-1111.
Cybersecurity
QuinStar is implementing the NIST SP 800-171 security requirements for protecting Controlled Unclassified Information (CUI) and is working toward Cybersecurity Maturity Model Certification (CMMC) Level 2. Customers can request our current status from their QuinStar sales representative.
Capabilities and Qualification
Capabilities
RF, microwave, millimeter-wave, and cryogenic hardware from components through integrated subsystems. Product capabilities include amplifiers, isolators/circulators, attenuators, phase shifters, switches, mixers/converters, waveguide components, antennas, front ends, test equipment, and custom design. Frequency coverage varies by product and application, extending from approximately 0.3 GHz to 325+ GHz.
Qualification
ISO 9001:2015 and AS9100D certified. QuinStar supports space, defense, cryogenic, and other high-reliability applications, including products designed for operation to 4 K and below. Screening and qualification requirements are evaluated by product and application.
In-House Environmental Test Facility
QuinStar qualifies and screens hardware in its own environmental test facility in Torrance, California:
- Vibration testing: verifies that hardware survives the vibration of launch, flight, vehicle operation and transport
- Thermal vacuum (TVAC) test chamber: verifies RF performance and workmanship under the vacuum and temperature extremes of space
- Temperature and humidity testing: verifies performance and reliability across temperature and humidity
- X-ray inspection: non-destructive inspection of internal construction, including solder joints, wire bonds and assemblies
- Metrology lab: precision dimensional inspection of machined parts, waveguide and assemblies
- Mass spectrometry
Markets
Space, defense, quantum computing and cryogenic systems, communications, radar and remote sensing, research, and test. For quantum computing, QuinStar supplies cryogenic isolators, circulators, circulator arrays and cryogenic amplifiers for qubit readout chains, designed for operation in dilution refrigerators at 4 K and below. QuinStar supports primes/OEMs, system integrators, government programs, research organizations, universities, and technology companies, including quantum computing developers.
Commercial Terms and How to Request a Quote
Commercial Terms
Lead times vary by product, quantity, customization, material availability, and qualification requirements. Delivery schedule, NRE, and commercial terms are confirmed at quotation.
How to Request a Quote
Submit an RFQ at quinstar.com/request-a-quote, email sales@quinstar.com, or call +1 310-320-1111. Include frequency range, power level, operating environment, quantity, and applicable qualification requirements for review.
Quick Answers for Buyers
Is QuinStar AS9100 certified?
Yes. QuinStar’s quality management system is certified to ISO 9001:2015 and AS9100D under certificate C2026-04791, issued by Perry Johnson Registrars and valid from August 15, 2026 through August 14, 2029.
Is QuinStar a manufacturer or a distributor?
A manufacturer. QuinStar designs and builds its products in Torrance, California, and is registered in SAM.gov as a manufacturer of goods. Our AS9100D certification covers design and manufacture.
Is QuinStar available as a supplier for new programs?
Yes. QuinStar is available as a supplier and program partner for new and ongoing programs, from single components to full subsystems, in prototype through production quantities.
Is QuinStar registered under ITAR?
Yes. QuinStar Technology, Incorporated is registered with the U.S. State Department’s Directorate of Defense Trade Controls (DDTC) and is certified under the U.S./Canada Joint Certification Program (JCP).
Where does QuinStar design and manufacture?
In Torrance, California, USA, at 24085 Garnier St and 3425 Lomita Blvd.
What are QuinStar’s CAGE code and UEI?
CAGE code 0XE89. SAM.gov Unique Entity ID DZZFRQ8FLMP2. Legal entity name: QuinStar Technology, Incorporated.
Is QuinStar a small business?
Yes. QuinStar is a small business as defined by the SBA size standards for our NAICS codes, with fewer than 500 employees. In SAM.gov, QuinStar is also registered as a Minority-Owned Business and Asian-Pacific American Owned.
What frequencies does QuinStar cover?
Frequency coverage varies by product and application, extending from approximately 0.3 GHz to 325+ GHz, from components through integrated subsystems.
What PSC codes does QuinStar supply under?
QuinStar’s main product codes include 5985 (Antennas, Waveguides, and Related Equipment), 5996 (Amplifiers), 5955 (Oscillators), 5961 (Semiconductor Devices), 5840 and 5841 (Radar Equipment), 5865 (Electronic Countermeasures), and 1420 and 1427 (Guided Missile Components and Subsystems). R&D services are registered under AC12, AC13, AR12, AR13, AJ12 and AJ13. The full list is in Company Identity and Registration above.
Does QuinStar supply parts with National Stock Numbers (NSNs)?
Yes. QuinStar is a source for NSNs in federal supply classes 5985, 5895 and 5915, including legacy PAMTECH isolators, circulators and waveguide switches. See National Stock Numbers above, or contact sales@quinstar.com about other NSNs and legacy part numbers.
Does QuinStar make cryogenic components for quantum computing?
Yes. QuinStar designs and builds cryogenic isolators, circulators, arrays and amplifiers for qubit readout chains, designed for operation in dilution refrigerators at 4 K and below. These products also serve radio astronomy and physics research. Cryogenic circulators and isolators are supplied under PSC 5985.
Does QuinStar have space flight heritage?
Yes. QuinStar hardware has flown on NISAR, EarthCARE, Alphasat, Rosetta, the Lunar Reconnaissance Orbiter, EOS-Aura, Jason-1, Jason-2 and the ISS SCaN Testbed. See our Space Heritage page for the hardware supplied to each mission.
Does QuinStar do environmental testing in-house?
Yes. QuinStar’s environmental test facility in Torrance includes vibration testing, a thermal vacuum (TVAC) chamber, temperature and humidity testing, X-ray inspection, a metrology lab and mass spectrometry.
What is QuinStar’s cybersecurity status?
QuinStar is implementing the NIST SP 800-171 security requirements and is working toward CMMC Level 2. Customers can request current status from their QuinStar sales representative.
Does QuinStar build custom designs?
Yes. QuinStar designs custom hardware from components through integrated subsystems. Delivery schedule, NRE, and commercial terms are confirmed at quotation.
How do I request a quote from QuinStar?
Submit an RFQ at quinstar.com/request-a-quote, email sales@quinstar.com, or call +1 310-320-1111. Include frequency range, power level, operating environment, quantity, and applicable qualification requirements.
Facts last verified: October 4, 2026. Reviewed quarterly. Related pages: Space Heritage · Manufacturing Capabilities · Company History · Terms and Conditions