Potomac Electrical Services, LLC
Crofton, MD Doing business as Potomac Testing Potomac Testing
- UEI
- HRBEL1NHMU11
- CAGE
- 1DTE7
- Primary NAICS
- 541380 Testing Laboratories and Services
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- NAICS codes registered in SAM.gov
-
- 541380 Testing Laboratories and Services Primary
- 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 .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| UEM 000 - troubleshoot electrical power issue affecting pad 202 | Naval Facilities Engineering Command | $10,000 | |
| Emergency electrical response | Air Force | $350,000 | |
| NMZ - services/ natural history building (cotr)l. Christian | Smithsonian Institution | $11,230 | |
| NMZ - services/ natural history building (cotr)l. Christian | Smithsonian Institution | $0 | |
| Task order for 333011-21-CFC-0027 coordination study | National Gallery of Art | $187,414 |
About Potomac Electrical Services, LLC
Potomac Electrical Services, LLC, doing business as Potomac Testing, is a self-certified small disadvantaged business based in Crofton, Maryland, that provides electrical troubleshooting, emergency repair, testing, and preventative maintenance services to federal agencies as a prime contractor (95% of recent awards) and occasional subcontractor. The company operates across testing laboratories, electrical contracting, transformer manufacturing, and facilities support, serving 31 distinct customer agencies primarily in the Mid-Atlantic region through full-and-open procurements without set-aside designations.
Potomac Testing's customer concentration is diffuse but anchored by a small number of institutional customers. The Department of the Army Installation Management Command Northeast Region leads by award count with 18 awards ($292 thousand combined potential value), followed by the Smithsonian Institution with 12 awards ($170 thousand) and the Department of the Army with 12 additional awards. However, the dollar rankings diverge sharply — the National Gallery of Art drives 55% of the company's combined potential value across just 4 awards ($2.9 million), reflecting a $689,630 preventative maintenance contract running through September 2026. The Navy Naval Facilities Engineering Command contributes $1.3 million across 6 awards. The Smithsonian and Army contracts are predominantly small, tactical repair and maintenance calls (ranging from under $10,000 to roughly $120,000), whereas the National Gallery represents sustained multi-year work.
The company places the majority of its work through the GSA Multiple Award Schedule (10 task orders) and scattered indefinite delivery contracts (IDCs) including Navy contract N4008006A3511 and Army contract 75N99020D00019. Recent prime capability work includes a $350,000 time-and-materials emergency electrical response contract awarded by the Air Force for on-site support at Wright Patterson Air Force Base (low to medium voltage diagnostics, transformer and switchgear repairs, through September 2026), a $187,414 coordination study for the National Gallery of Art (October 2023–March 2024), and a $10,000 purchase order from Naval Facilities Engineering Command for electrical troubleshooting at a Maryland installation (ultimate completion March 2026). Potomac Testing subcontracts primarily to Emcor Government Services, Inc. on electrical and fire alarm outage support and preventative maintenance at federal buildings in Washington, D.C., and to Balfour Beatty Construction on electrical testing for communications infrastructure.
Activity runs low and steady — three to five awards per year over the past five years — with two awards (combined potential value $1 million) reaching completion inside the next twenty-four months. The company's award portfolio spans 147 total transactions dating to 1999, but combined potential value of $8.7 million against $11.5 million in obligated dollars reflects high utilization of existing ceilings across small, tactical maintenance and repair contracts. The primary NAICS footprint centers on testing laboratories and services (38 awards) and electrical contracting (29 awards), with smaller concentrations in transformer manufacturing and facilities support.
Quick answers
What is Potomac Electrical Services, LLC's UEI?
Potomac Electrical Services, LLC's Unique Entity ID (UEI) in SAM.gov is HRBEL1NHMU11.
What is Potomac Electrical Services, LLC's CAGE code?
Potomac Electrical Services, LLC's CAGE code is 1DTE7.
What is Potomac Electrical Services, LLC's primary NAICS code?
Potomac Electrical Services, LLC's primary NAICS code is 541380 (Testing Laboratories and Services).
Where is Potomac Electrical Services, LLC located?
Potomac Electrical Services, LLC's physical address in SAM.gov is 1610 Professional Blvd a, Crofton, MD 21114, USA.
Is Potomac Electrical Services, LLC registered in SAM.gov?
Yes. Potomac Electrical Services, LLC's SAM.gov registration is active through August 20, 2027.
What is Potomac Electrical Services, LLC's most recent federal award?
Potomac Electrical Services, LLC's most recent federal contract award is UEM 000 - troubleshoot electrical power issue affecting pad 202 (N4008026P0002), from Naval Facilities Engineering Command, on November 3, 2025.
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
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