Active
Small Business
Overview
- Legal name
- EPSILON C5I INC
- Registered location
- SAN DIEGO, CA, USA
- Website
- Company website ↗
- Primary NAICS
- 541330 — Engineering Services
- Latest award activity
- Jul 3, 2026
Read company summary
EPSILON C5I INC is associated with UEI KFP1XYK24DZ8 and CAGE 0BS45 in public federal records. AcornBids currently links 36 prime awards totaling $106.7M 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); Engineering Services; Other Scientific and Technical Consulting Services. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 541330 (Engineering Services). Its public SAM.gov registration lists SAN DIEGO, CA, USA.
At a glance
Lifetime prime obligations$106.7M
Prime awards36
Awards with future end dates16
Top-agency concentration100.0%
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 28, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- EPSILON C5I INC
- UEI
- KFP1XYK24DZ8
- CAGE
- 0BS45
- Registered address
- 9370 SKY PARK CT STE 210, SAN DIEGO, CA, 92123, USA
- Registration status
- Active
- Primary NAICS
- 541330 — Engineering Services
- SAM activation
- Feb 6, 2026
- Initial registration
- Mar 18, 2002
- Entity start
- Feb 21, 1986
- SAM updated
- Feb 6, 2026
- Registration expires
- Feb 4, 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 |
|---|---|---|---|---|
| 47QRCA25DU399ONE ACQUISITION SOLUTION FOR INTEGRATED SERVICES PLUS (OASIS+) UNRESTRICTED MULTIPLE AGENCY CONTRACT (MAC) | General Services Administration | $2.5K | Dec 17, 2024 | Not available |
| N6893625F034025F0340 SBIR 3 N101-100 | Department of Defense | $11.0M | Jun 11, 2025 | Sep 10, 2026 |
| N0001425C1128TACTICAL APPLICATIONS FOR CONTAINERIZED KNOWLEDGE AND LOGISTICS EXECUTION (TACKLE) | Department of Defense | $2.9M | Aug 5, 2025 | Aug 4, 2026 |
| HQ085926FE188SCALABLE HOMELAND INNOVATIVE ENTERPRISE LAYERED DEFENSE (SHIELD) INITIAL ORDER. | Department of Defense | $500 | Dec 29, 2025 | Dec 28, 2035 |
| N6600126D0077DEVELOPMENT, TECHNICAL, MANAGEMENT, AND ENGINEERING SERVICES FOR INTELLIGENCE, SURVEILLANCE AND RECONNAISSANCE (ISR) SYSTEMS & INFORMATION OPERATIONS (IO) FROM SEABED TO SPACE… | Department of Defense | $700.0M | May 25, 2026 | Not available |
| FA860425FB406THE PERFORMANCE WORK STATEMENT ENTITLED GEOINT SCENE PREDICTION RD (NSC-25-071) DATED 2 JULY 2025 IS HEREBY INCORPORATED BY REFERENCE. | Department of Defense | $1.7M | Sep 22, 2025 | Mar 21, 2027 |
| FA860426FB172THE PERFORMANCE WORK STATEMENT (PWS), ENTILTED FOUNDATION AND INTEGRATION COLLECTION DEVELOPMENT AND SUPPORT, REVISION 1, NSC-26-014, DATED 30 MARCH 2026, IS HEREBY INCORPORATED… | Department of Defense | $6.0M | Jun 12, 2026 | Mar 11, 2030 |
| N6600126F8523THIS IS A SEVERABLE, LEVEL-OF-EFFORT (LOE) TASK ORDER FOR A 12-MONTH PERIOD OF PERFORMANCE TO PROVIDE SUPPORT IN RESEARCH AND DEVELOPMENT OF SIGNALS INTELLIGENCE (SIGINT)… | Department of Defense | $763.3K | Dec 5, 2025 | Dec 4, 2026 |
| FA860422DB006NOVASTAR, NASIC S AND TI ANALYTIC CAPABILITY SUPPORT CONTRACT | Department of Defense | $4.8B | Aug 19, 2022 | Not available |
| N6600125F0138TEST AUTOMATION FRAMEWORK (TAF) ENGINEERING AND TECHNICAL SUPPORT | Department of Defense | $7.4M | Feb 3, 2025 | Feb 2, 2028 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Feb 6, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Mar 18, 2002 |
| Entity start | Feb 21, 1986 |
Registration classifications: Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 334290 — Other Communications Equipment Manufacturing | Not reported |
| 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | Not reported |
| 541330 — Engineering Services | Not reported |
| 541370 — Surveying and Mapping (except Geophysical) Services | Not reported |
| 541511 — Custom Computer Programming Services | Not reported |
| 541512 — Computer Systems Design Services | Not reported |
| 541519 — Other Computer Related Services | Not reported |
| 541690 — Other Scientific and Technical Consulting Services | Not reported |
| 541713 — Research and Development in Nanotechnology | 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 |
|---|---|---|---|---|
| JAMES LOISELLE | Government business | Contact method not published | SAM registration | Not available |
| STEVE MARTIN | Alternate government business | Contact method not published | SAM registration | Not available |
| JAMES LOISELLE | Electronic business | Contact method not published | SAM registration | Not available |
| STEVE MARTIN | Alternate electronic business | Contact method not published | SAM registration | Not available |
| Camille Guevara | Contractor contract manager | cguevara@epsilonsystems.com | Source | Oct 1, 2026 |
| Steven Martin | Contractor program manager | stmartin@epsilonsystems.com | Source | Oct 1, 2026 |
Registered industries
- 334290 — Other Communications Equipment Manufacturing
- 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- 541330 — Engineering Services
- 541370 — Surveying and Mapping (except Geophysical) Services
- 541511 — Custom Computer Programming Services
- 541512 — Computer Systems Design Services
- 541519 — Other Computer Related Services
- 541690 — Other Scientific and Technical Consulting Services
- 541713 — Research and Development in Nanotechnology
- 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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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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