American Mechanical Services Of Maryland, L.L.C.
Laurel, MD Doing business as American Mechanical Services Of Maryland Fairfax Co
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Partnership or Limited Liability Partnership
- Other NAICS codes in SAM.gov
- SAM.gov registration date
- Physical address
- 13300 Mid Atlantic Blvd, Laurel, MD 20708, USA
- Website
- amsofusa.com
- Founded
- 1997
- Employees
- 251-1K
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 76 Miscellaneous Repair 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 | $193,120 |
| FY2025 | $1,415,447 |
| FY2024 | $291,745 |
| FY2023 | $291,833 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Smithsonian Institution | $184,045 | |
| 2 | Department of the Interior | $9,075 |
Contract vehicles
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Asrc Federal Facilities Logistics LLC | 80GSFC23CA052 | $155,755 | |
| Asrc Federal Facilities Logistics LLC | 80GSFC23CA052 | $57,095 |
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About the company
American Mechanical Services Of Maryland, L.L.C., a for-profit limited liability company and Department of Transportation–certified Disadvantaged Business Enterprise (DBE) based in Laurel, Maryland, operates as a prime contractor (98% of awards) providing HVAC maintenance, repair, installation, and specialty boiler-testing services to federal civilian agencies on a full-and-open basis, with no set-aside activity. The vendor holds a GSA Multiple Award Schedule contract (47QSMS24D00BB) running through August 2029 with a $750,000 ceiling, through which it furnishes HVAC labor across four technician classifications—Apprentice through Industrial Service Technician—at hourly rates spanning $137.26 to $212.24, all requiring high school education with no security-cleared roles.
Customer concentration is extreme and deliberate: the Smithsonian Institution accounts for 81% of all awards (73 of 102 total) and $17.6 million of the $21.6 million combined potential value. The relationship spans facilities including the Natural History Building, the National Museum of the American Indian, and the CFCH Warehouse in Laurel and Lanham, Maryland, with recurring scopes for preventive HVAC maintenance, equipment repair and replacement, and Title V boiler-emissions testing. The Department of the Treasury's Financial Crimes Enforcement Network places the second-largest volume (3 awards, $737 thousand combined potential value), primarily for quarterly preventive maintenance and emergency A/C support under a definitive contract valued at $473,634.23 running through September 2026 with an option to extend one additional year. NASA Goddard Space Flight Center, the Department of Interior Fish and Wildlife Service, and the Department of Justice FBI round out the customer base at small nominal values. GSA Federal Acquisition Service accounts for $3 million in combined potential value through two deliveries orders issued under the MAS contract itself—a $9,075 dehumidifier replacement in Falls Church, Virginia (July 15, 2026) and a $3,335 dehumidifier repair (August 27, 2025), both now complete.
Recent award velocity has decelerated markedly: six awards in 2022 declining to one award in 2026 year-to-date (July 15). Across 102 total awards spanning 2003 to present, combined dollars obligated reach $18.7 million (87% of combined potential value). The vendor operates overwhelmingly in NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors), accounting for 70 of 102 awards, with ancillary work in Facilities Support Services (13 awards) and Commercial Building Construction (6 awards). PSC-level work centers on maintenance and repair of refrigeration and air-conditioning equipment (17 awards), quality control of plumbing and heating equipment (16 awards), and installation of heating and waste-disposal equipment (9 awards).
The vendor's subcontractor footprint is minimal: only 2 of 102 awards represent sub work, both to ASRC Federal Facilities Logistics LLC as prime on the NASA Goddard Space Flight Center repairs, operations, and maintenance contract (awards issued June 6, 2024, and November 15, 2024). Service Contract Inventory records show zero invoiced revenue on prime contracts and a workforce trajectory of roughly 1.5 to 4.9 FTEs on named-subcontractor records across FY2022–FY2025, reflecting minor federal service-contract engagement above the SCI $150,000 reporting threshold. The vendor's revenue model concentrates on small-to-mid-size purchase orders and delivery orders under the Smithsonian relationship and the GSA MAS vehicle, with minimal exposure to large IDIQs, GWACs, or defense facilities work.
Quick answers
Is American Mechanical Services Of Maryland, L.L.C. registered in SAM.gov?
Yes. American Mechanical Services Of Maryland, L.L.C.'s SAM.gov registration is active through December 4, 2026.
What is American Mechanical Services Of Maryland, L.L.C.'s CAGE code?
American Mechanical Services Of Maryland, L.L.C.'s CAGE code is 5NY43, and its Unique Entity ID (UEI) is W5UXLGNU8J37.
Which contract vehicles does American Mechanical Services Of Maryland, L.L.C. hold?
American Mechanical Services Of Maryland, L.L.C. holds a place on 1 federal contract vehicle: MAS.
How much has American Mechanical Services Of Maryland, L.L.C. received in federal contracts?
Federal contracts obligated $1,415,447 to American Mechanical Services Of Maryland, L.L.C. in fiscal year 2025 and $2,192,145 in fiscal years 2023 through 2027.
How does American Mechanical Services Of Maryland, L.L.C. rank among federal contractors?
American Mechanical Services Of Maryland, L.L.C. ranked #7 in PSC J099, #55 at the Smithsonian Institution and #86 in PSC Z1EB in FY2025.
What is American Mechanical Services Of Maryland, L.L.C.'s most recent federal award?
American Mechanical Services Of Maryland, L.L.C.'s most recent federal contract award is ES GLO dehumidifier replacement (140L0626F0044), from National Office (BLM), on July 15, 2026.
On GovTribe
See American Mechanical Services Of Maryland, L.L.C.'s full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
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