Active
Small Business
Overview
- Legal name
- PROTONEX LLC
- Also known as
- PNI SENSOR
- Registered location
- WINDSOR, CA, USA
- Website
- Company website ↗
- Primary NAICS
- 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- Latest award activity
- May 21, 2026
Read company summary
PROTONEX LLC is associated with UEI K82GMYAGGU66 and CAGE 81R85 in public federal records. AcornBids currently links 5 prime awards totaling $5.2M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Defense. Its recorded federal awards include work classified as Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology). These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 334511 (Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing). Its public SAM.gov registration lists WINDSOR, CA, USA.
At a glance
Lifetime prime obligations$5.2M
Prime awards5
Awards with future end dates2
Top-agency concentration
Not available
Why this customer concentration
Detailed agency totals are not available in this stored profile.
Largest positive coded-agency total ÷ all positive coded-agency totals × 100
Missing data is shown as unavailable.
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 27, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- PROTONEX LLC
- Doing business as
- PNI SENSOR
- UEI
- K82GMYAGGU66
- CAGE
- 81R85
- Registered address
- 501 AMERICAN WAY, WINDSOR, CA, 95492, USA
- Registration status
- Active
- Primary NAICS
- 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- SAM activation
- Jan 14, 2026
- Initial registration
- Feb 7, 2018
- Entity start
- Dec 6, 2017
- SAM updated
- Jan 14, 2026
- Registration expires
- Jan 12, 2027
- Fiscal year end
- Dec 31
- Place of incorporation
- CA, USA
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| FA865124CB019SBIR D2P2 LOW SWAP-C M3100 HARDENED VECTOR MAGNETOMETER FOR MANNED, UNMANNED AND WEAPONS SYSTEMS | Department of Defense | $1.4M | Apr 12, 2024 | Oct 13, 2026 |
| FA864925P0353POSITIONING NAVIGATION INTELLIGENCE (PNI) SENSOR ENHANCED PILOT LOCATOR BEACON FOR GLOBAL POSITIONING SYSTEM (GPS) DENIED ENVIRONMENTS | Department of Defense | $1.2M | Jul 30, 2025 | Feb 1, 2027 |
| FA864924P1073ENHANCED MAGNETIC NAVIGATION FOR AIRCRAFT | Department of Defense | $1.2M | Aug 16, 2024 | May 15, 2026 |
| FA864925P0155EXTREMELY LOW SWAP-C (SIZE, WEIGHT, POWER AND COST) SPACE MAGNETOMETER FOR LEO (LOW EARTH ORBIT) SATELLITE ATTITUDE DETERMINATION | Department of Defense | $110.0K | Jan 17, 2025 | Apr 17, 2025 |
| FA864924P0420TIGHTLY COUPLED INTEGRATION OF THE FIELD OPS REMOTE TRACKER (FORT) INERTIAL TRACKING MODULE WITH A COTS GPS RECEIVER TO CREATE AN EXTREMELY EW RESILIENT TRACKING DEVICE | Department of Defense | $1.2M | Feb 8, 2024 | Oct 3, 2025 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Jan 14, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Feb 7, 2018 |
| Entity start | Dec 6, 2017 |
Registration classifications: Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | Not reported |
| 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| BECKY OH | Government business | Contact method not published | SAM registration | Not available |
| BECKY OH | Alternate government business | Contact method not published | SAM registration | Not available |
| ERIC J WALTERS | Electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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About PROTONEX LLC
What products and services appear in its federal awards?
Recorded award industries: 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology).
Recorded products and services: AC32 — NATIONAL DEFENSE R&D SERVICES; DEFENSE-RELATED ACTIVITIES; APPLIED RESEARCH; AC12 — NATIONAL DEFENSE R&D SERVICES; DEPARTMENT OF DEFENSE - MILITARY; APPLIED RESEARCH.
Examples from recent award records:
- SBIR D2P2 LOW SWAP-C M3100 HARDENED VECTOR MAGNETOMETER FOR MANNED, UNMANNED AND WEAPONS SYSTEMS
- POSITIONING NAVIGATION INTELLIGENCE (PNI) SENSOR ENHANCED PILOT LOCATOR BEACON FOR GLOBAL POSITIONING SYSTEM (GPS) DENIED ENVIRONMENTS
These records describe federal award work, not every company capability. Review the award evidence.
Where is the company registered?
501 AMERICAN WAY, WINDSOR, California 95492, United States
Registered location from SAM.gov; award performance locations may differ.
What is its primary registered industry?
Primary SAM.gov NAICS classification.
Which federal agencies are represented in its awards?
Department of Defense.
Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
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