Guardian Systems LLC
Portsmouth, VA Doing business as Guardian Energy Systems
- UEI
- FLT5LFGMM741
- CAGE
- 3TRW0
- Primary NAICS
- 541330 Engineering Services
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- SBA certifications
-
Veteran-Owned Small Business– · EndedService Disabled Veteran-Owned Small Business– · Ended
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 238210 Electrical Contractors and Other Wiring Installation Contractors
- 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing
- 333111 Farm Machinery and Equipment Manufacturing
- 333618 Other Engine Equipment Manufacturing
- 334111 Electronic Computer Manufacturing
- 334419 Other Electronic Component Manufacturing
- 335312 Motor and Generator Manufacturing
- 336611 Ship Building and Repairing
Show all 15
- 532412 Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing
- 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing
- 541490 Other Specialized Design Services
- 541511 Custom Computer Programming Services
- 541611 Administrative Management and General Management Consulting Services
- 561110 Office Administrative Services
- 611512 Flight Training
- SAM.gov registration date
- Physical address
- 3050 High St g, Portsmouth, VA 23707, USA
- Website
- guardiansystems.us
- Industry
-
- Information Technology
- Software & Services
- Internet Software & Services
- SIC code
- 73 Business Services
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $3,454,822 |
| FY2025 | $2,792,405 |
| FY2024 | $2,130,972 |
| FY2023 | $1,433,538 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $2,218,963 | |
| 2 | Department of Homeland Security | $947,057 | |
| 3 | Department of the Army | $224,609 | |
| 4 | Department of the Interior | $59,699 | |
| 5 | Department of Commerce | $4,493 |
Contract vehicles
No active vehicles.
1 expired vehicle
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Preventive maintenance and repairs for four (4) CAT (caterpillar) C32 1000 KW (60 HZ) diesel generators. | National Oceanic and Atmospheric Administration | $11,155 | |
| Open, inspect, reapir cylinder assy. | Coast Guard | $54,499 | |
| Ssdg long block | Coast Guard | $62,538 | |
| Open, inspect, repair governors | Coast Guard | $41,152 | |
| 3 20R-9122 CAT reman water pump | Coast Guard | $13,499 |
Latest 5 listed here. See the rest on GovTribe.
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About the company
Guardian Systems LLC, doing business as Guardian Energy Systems, a service-disabled veteran-owned small business headquartered in Portsmouth, Virginia, supplies Caterpillar diesel engine components, generator parts, and ship service diesel generator maintenance and overhaul services to federal maritime and military agencies as a prime contractor (100% of recent awards). The company holds SBA certifications as both a Service Disabled Veteran-Owned Small Business and a Veteran-Owned Small Business, with certifications expiring June 29, 2026.
Guardian's customer concentration is heavily weighted toward maritime operations. The U.S. Coast Guard dominates by award count (51 awards, $4.1 million combined potential value), while Naval Sea Systems Command leads by dollar value (26 awards, $4.4 million combined potential value). These two agencies account for over 60% of all recent awards. The National Oceanic and Atmospheric Administration, the U.S. Army Corps of Engineers, and the Bureau of Reclamation round out the top five customer agencies. Guardian competes almost exclusively under total small business set-asides, with a small number of full-and-open awards to the Coast Guard and Army Corps of Engineers. The NAICS footprint centers on engine equipment manufacturing (42 awards) and ship building and repairing (29 awards), with secondary work in machinery repair and maintenance (16 awards) and construction equipment manufacturing (4 awards).
Representative prime work spans Caterpillar long block kits, crankshaft assemblies, turbochargers, and aftercooler core replacements for Coast Guard cutters (USCGC Resolute, Hamilton, Bear, Vigilant, Alert, Reliance, and others); a $2.2 million Naval Sea Systems Command OEM support and preservation order for three Caterpillar 3516E generator sets through December 2028; a $697 thousand NAVSEA contract for SSDG parts for the USS New York; a $759 thousand Department of Veterans Affairs award for a 900 KW portable diesel generator for the Charles George Medical Center in Asheville, North Carolina; and multiple NOAA Ship contracts for engine repairs and parts (Ferdinand Hassler, Bell M. Shimada, Okeanos Explorer, Oscar Dyson, Henry Bigelow, and Oregon II). Guardian also serves the Army Corps of Engineers with heavy equipment engine work, including a $419 thousand contract for repair of Caterpillar D6N and D6T dozers in Memphis, Tennessee, and a $338 thousand engine recondition order for the Army.
Activity has remained stable year over year—21 to 22 awards per year from 2022 through 2024, declining slightly to 15 in 2025 and recovering to 18 in 2026. Only six awards (combined potential value $299 thousand) face completion in the next twenty-four months, representing modest recompete exposure. Guardian holds a single identified vehicle position: one task order on the SeaPort-e GWAC. The vendor operates as a pure prime contractor with no subcontract footprint in the source data. Combined potential value across all 120 awards totals $13.4 million, with $13.3 million obligated. Guardian's business model targets transactional small business set-asides under FAR Parts 12 and 13 simplified acquisition procedures for Caterpillar OEM parts and maintenance services that support vessel and equipment readiness across federal maritime agencies.
SBA capabilities narrative
We specialize in bringing unique/unknown technologies and capabilities to the Federal marketplace- specifically: Photogrammetry drone software, remote training/remote support smartphone systems, sUAS and CUAS manufacturing support, CAT Support and Systems
Quick answers
Is Guardian Systems LLC registered in SAM.gov?
Yes. Guardian Systems LLC's SAM.gov registration is active through January 27, 2027.
Which contract vehicles does Guardian Systems LLC hold?
Guardian Systems LLC holds a place on 1 federal contract vehicle: SeaPort-e.
How much has Guardian Systems LLC received in federal contracts?
Federal contracts obligated $2,792,405 to Guardian Systems LLC in fiscal year 2025 and $9,811,737 in fiscal years 2023 through 2027.
How does Guardian Systems LLC rank among federal contractors?
Guardian Systems LLC ranked #19 in PSC J038, #29 in PSC 6115 and #32 in PSC 2910 in FY2025.
What is Guardian Systems LLC's most recent federal award?
Guardian Systems LLC's most recent federal contract award is Preventive maintenance and repairs for four (4) CAT (caterpillar) C32 1000 KW (60 HZ) diesel generators (1332KP26P0039), from National Oceanic and Atmospheric Administration, on September 25, 2026.
On GovTribe
See Guardian Systems LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Funding analysis by agency, NAICS and set-aside
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