Housen Health Services, Incorporated
Doing business as T3 Williamson Mechanical
- UEI
- LNRAY589L3W5
- CAGE
- 1FLX8
- SAM.gov registration
- Expired
Company facts
- FY2025 rankings
- SBA certifications
-
Veteran-Owned Small Business– · CurrentService Disabled Veteran-Owned Small Business– · Current
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 221310 Water Supply and Irrigation Systems
- 236220 Commercial and Institutional Building Construction
- 238210 Electrical Contractors and Other Wiring Installation Contractors
- 238290 Other Building Equipment Contractors
- 238390 Other Building Finishing Contractors
- 238990 All Other Specialty Trade Contractors
- 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
- 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers
Show all 24
- 488119 Other Airport Operations
- 541350 Building Inspection Services
- 541380 Testing Laboratories and Services
- 561311 Employment Placement Agencies
- 561320 Temporary Help Services
- 561720 Janitorial Services
- 561790 Other Services to Buildings and Dwellings
- 621330 Offices of Mental Health Practitioners (except Physicians)
- 621399 Offices of All Other Miscellaneous Health Practitioners
- 621610 Home Health Care Services
- 621999 All Other Miscellaneous Ambulatory Health Care Services
- 623990 Other Residential Care Facilities
- 624120 Services for the Elderly and Persons with Disabilities
- 624190 Other Individual and Family Services
- 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
- 812199 Other Personal Care Services
- SAM.gov registration date
- Website
- housenhealthservices.com
- Founded
- 1991
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Health Care
- Health Care Equipment & Services
- Health Care Providers & Services
- Health Care Services
- SIC code
- 80 Health 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 | $23,267 |
| FY2025 | $167,306 |
| FY2024 | $143,255 |
| FY2023 | $324,820 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Veterans Affairs | $23,267 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
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About the company
Housen Health Services, Incorporated, doing business as T3 Williamson Mechanical, provides facility mechanical systems maintenance, water treatment engineering, and infrastructure repair services to federal health care and research agencies as a prime contractor under Service-Disabled Veteran-Owned Small Business (SDVOSB) and Veteran-Owned Small Business (VOSB) set-asides. The firm is a Subchapter S corporation registered as a minority-owned, Native American-owned, and small disadvantaged business, with SDVOSB and VOSB certifications expiring in October 2027.
Work concentrates in two adjacent domains: water treatment systems engineering and HVAC/plumbing infrastructure at federal medical facilities. Representative work includes a $363,012 firm-fixed-price definitive contract awarded by USDA's Agricultural Research Service in October 2023 for reverse-osmosis system demolition, replacement, and facility repairs at the Beltsville Agricultural Research Center in Maryland (completed September 2024); a $180,461 single-award IDIQ with the VA's Veterans Integrated Service Network 4 running through February 2030 for secondary water treatment and Legionella prevention at Wilmington VA Medical Center in Delaware, encompassing monochloramine generator replacement, monthly site visits, water sampling, chemical maintenance, and remote monitoring; and multiple small purchase orders across VA medical centers in Philadelphia and Richmond for chilled water coil replacement and MRI pump room pipe installation and replacement work.
Customer concentration is extreme and VOSB-anchored. The Department of Veterans Affairs accounts for 16 of 18 awards ($1.1 million potential value across Veterans Integrated Service Network 5 alone, with additional work under VISN 4 and VISN 6). The USDA Agricultural Research Service (Northeast Area) accounts for one $363 thousand award, and the Federal Communications Commission for one $25 thousand facility repair order. Work sits under VA Basic Ordering Agreements VA24514A0051 (4 task orders, $412 thousand) and VA24513A0010 (3 task orders, $148 thousand), plus an indefinite delivery contract with ceiling value of $180,461.
Activity shows acceleration in recent years — one award in 2024 rising to four in 2025 and one in 2026 — with only one award facing ultimate completion in the next twenty-four months ($23 thousand potential value). The vendor's combined potential value across all 18 awards is $1.9 million, with $1.2 million obligated to date. By NAICS concentration, the portfolio spans Home Health Care Services (6 awards), Plumbing, Heating, and Air-Conditioning Contractors (4 awards), and Services for the Elderly and Persons with Disabilities (4 awards), with water supply and irrigation systems work appearing in 3 awards. All 18 awards are prime awards; the vendor carries no subcontract footprint in the source data. Housen Health Services operates exclusively within VOSB and SDVOSB set-aside vehicles and purchase-order-level work; the vendor does not hold a position on any government-wide IDIQs, GWACs, or multi-agency vehicles beyond VA basic ordering agreements.
Quick answers
Is Housen Health Services, Incorporated registered in SAM.gov?
Housen Health Services, Incorporated's SAM.gov registration expired on April 1, 2026.
Which SBA certifications does Housen Health Services, Incorporated hold?
Housen Health Services, Incorporated holds Veteran-Owned Small Business and Service Disabled Veteran-Owned Small Business certifications from the SBA.
How much has Housen Health Services, Incorporated received in federal contracts?
Federal contracts obligated $167,306 to Housen Health Services, Incorporated in fiscal year 2025 and $658,647 in fiscal years 2023 through 2027.
How does Housen Health Services, Incorporated rank among federal contractors?
Housen Health Services, Incorporated ranked #74 in PSC J046 and #100 in PSC C1JZ in FY2025.
What is Housen Health Services, Incorporated's most recent federal award?
Housen Health Services, Incorporated's most recent federal contract award is Secondary water treatment for legionella (36C24426N0222), from Veterans Integrated Service Network 4 (VHA), on February 27, 2026.
On GovTribe
See Housen Health Services, Incorporated's full federal record
- Federal contract awards
- IDV awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors