Potomac Electrical Services, LLC
Crofton, MD Doing business as Potomac Testing
- UEI
- HRBEL1NHMU11
- CAGE
- 1DTE7
- Primary NAICS
- 541380 Testing Laboratories and Services
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 237130 Power and Communication Line and Related Structures Construction
- 238210 Electrical Contractors and Other Wiring Installation Contractors
- 541330 Engineering Services
- 541990 All Other Professional, Scientific, and Technical Services
- 561210 Facilities Support Services
- 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
- SAM.gov registration date
- Physical address
- 1610 Professional Blvd a, Crofton, MD 21114, USA
- Website
- potomactesting.com
- Founded
- 1985
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- Civil Engineering
- SIC code
- 87 Engineering & Management Services
- Profiles
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 | $653,426 |
| FY2025 | $414,853 |
| FY2024 | $281,504 |
| FY2023 | $259,246 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | National Gallery of Art | $493,426 | |
| 2 | Air Force | $150,000 | |
| 3 | Department of the Navy | $10,000 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Emcor Government Services, Inc. | 47PM0625F0159 | $46,000 | |
| Emcor Government Services, Inc. | 47PN1123F0008 | $226,475 | |
| Dawson Enterprises, Inc. | 75N99024F00033 | $46,280 | |
| Emcor Government Services, Inc. | 47PM0624F0123 | $357,740 | |
| Emcor Government Services, Inc. | 47PM0621F0137 | $604,171 |
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
About the company
Potomac Electrical Services, LLC, operating as Potomac Testing Division, is a self-certified small disadvantaged business based in Crofton, Maryland, that provides electrical troubleshooting, testing, emergency repair, preventative maintenance, and coordination studies to federal civilian agencies primarily as a prime contractor (95% of recent awards). The vendor competes full-and-open, without set-aside designation on the majority of work; the sole exception is a March 2025 Total Small Business purchase order from the Air Force for emergency electrical response services at Wright Patterson Air Force Base.
Potomac Testing's capability footprint spans low to medium voltage diagnostics, transformer and switchgear repairs, oil testing, PLC control system repairs, electrical panel updates, and on-site emergency electrical support at federal facilities. The vendor's recent prime work includes a $460,294 firm fixed-price definitive contract awarded by the National Gallery of Art in October 2026 for high voltage panel update and related tasks concluding September 2027; a $471,600 time-and-materials purchase order from the Air Force for emergency electrical response services at WPAFB running through September 2026; and a $187,414 purchase order from the National Gallery of Art for coordination study services completed in March 2024. The vendor also held a $123,145 purchase order from the Navy Installations Command for 480 breaker repair in Building 3163, and multiple smaller orders from the Smithsonian Institution for transformer oil testing, network protector emergency repair, and PLC control system replacement work.
Customer concentration clusters around facilities and research agencies in the National Capital Region. The top five funding agencies by award count account for 39% of all awards, with the Department of the Army Installation Management Command Northeast Region leading at 18 awards and $292 thousand combined potential value, followed by the Smithsonian Institution with 12 awards and $170 thousand. However, by potential-value ranking, the National Gallery of Art dominates at 5 awards carrying $3.3 million combined potential value — roughly 35% of the vendor's entire portfolio. The Department of the Navy Naval Facilities Engineering Command is the second-largest value customer with 6 awards and $1.3 million.
Potomac Testing sits on the GSA Multiple Award Schedule with 10 task orders, and holds positions on three additional Indefinite Delivery Contracts. Activity has remained relatively flat over the past five years (ranging from one to five awards annually from 2022 through 2026), with one award carrying $460 thousand in combined potential value reaching ultimate completion inside the next twenty-four months. The vendor's subcontractor footprint is minimal (5% of recent awards) but includes recurrent relationships with Emcor Government Services, Inc. for electrical and fire alarm outage support and preventative maintenance at federal buildings in Washington, D.C., and with Dawson Enterprises, Inc. for transformer and soft-starter testing and repair work. Potomac Testing's work is grounded in NAICS testing laboratories and services (39 awards) and electrical contracting (29 awards), with performance locations concentrated at federal facilities in the National Capital Region and select military installations.
Quick answers
Is Potomac Electrical Services, LLC registered in SAM.gov?
Yes. Potomac Electrical Services, LLC's SAM.gov registration is active through August 20, 2027.
How much has Potomac Electrical Services, LLC received in federal contracts?
Federal contracts obligated $414,853 to Potomac Electrical Services, LLC in fiscal year 2025 and $1,609,029 in fiscal years 2023 through 2027.
How does Potomac Electrical Services, LLC rank among federal contractors?
Potomac Electrical Services, LLC ranked #54 at the National Gallery of Art in FY2025.
What is Potomac Electrical Services, LLC's most recent federal award?
Potomac Electrical Services, LLC's most recent federal contract award is High voltage panel update and related tasks (33301126CFC0043), from National Gallery of Art, on October 12, 2026.
On GovTribe
See Potomac Electrical Services, LLC's full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors