HSG Mechanical Contractors Inc.
Carterville, IL
- UEI
- UFNEHLB6Z6L5
- CAGE
- 5BK46
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- SAM.gov registration date
- Physical address
- 7689 Gunners Ln, Carterville, IL 62918, USA
- Website
- hsgmechanical.com
- Employees
- 1-10
- Estimated annual revenue
- $0-$1M
- 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 | $9,000 |
| FY2025 | $18,326 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Interior | $9,000 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
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About the company
HSG Mechanical Contractors Inc., a small-business Subchapter S corporation based in Carterville, Illinois, provides HVAC maintenance, repair, and emergency service to the federal government exclusively as a prime contractor under small-business set-asides. The company operates in the NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors) category and competes on firm fixed-price BPA calls for preventive maintenance and component replacement work at federal facilities.
The company's federal footprint is concentrated with a single customer: the Department of the Interior Fish and Wildlife Service Region 3, which accounts for six of eight recent awards and $277 thousand of the $314 thousand combined potential value. A single BPA — Blanket Purchase Agreement 140FS225A0001, effective November 11, 2024 through November 10, 2029 with a $250 thousand ordering ceiling — anchors the entire active relationship. Under this parent BPA, Fish and Wildlife Service has placed five task orders totaling approximately $27 thousand through the recent period, covering both scheduled semi-annual preventive maintenance (filter cleaning and replacement, drain inspections, system operation verification) and emergency repair services at the Crab Orchard National Wildlife Refuge in Marion, Illinois. Representative work includes a $9,691 task order (May 14, 2025) for Variable Refrigerant Flow compressor and inverter board replacement, a $4,500 general HVAC service call (July 21, 2025), a $4,135 urgent Visitor Center HVAC system repair (September 5, 2025), a $4,500 preventive maintenance call (December 15, 2025), and a $4,500 call (June 8, 2026) for continued facility support. A single $37 thousand award from the Department of Veterans Affairs Veterans Health Administration (VISN 15) rounds out the visible portfolio. HSG Mechanical Contractors operates at one facility location and does not subcontract — all eight awards are prime work.
Activity has accelerated into 2025 and 2026, with four awards placed in 2025 and one in 2026 compared to single awards in 1999, 2016, and 2024. Only one award (combined potential value $5 thousand) reaches ultimate completion within the next twenty-four months, positioning the vendor for continued runway under the existing BPA through its November 2029 expiration if Fish and Wildlife Service sustains the call-order cadence. Combined dollars obligated equal $140 thousand (45% of combined potential value), indicating active invoicing and minimal award backlog.
Quick answers
Is HSG Mechanical Contractors Inc. registered in SAM.gov?
Yes. HSG Mechanical Contractors Inc.'s SAM.gov registration is active through January 16, 2027.
How much has HSG Mechanical Contractors Inc. received in federal contracts?
Federal contracts obligated $18,326 to HSG Mechanical Contractors Inc. in fiscal year 2025 and $27,326 in fiscal years 2023 through 2027.
What is HSG Mechanical Contractors Inc.'s most recent federal award?
HSG Mechanical Contractors Inc.'s most recent federal contract award is IL crab orchard NWR HVAC service BPA call: #6 EO 14398 - this requirement is for support services for crab orchard NWR (140FS226F0088), from Fish and Wildlife Service, on June 8, 2026.
On GovTribe
See HSG Mechanical Contractors Inc.'s full federal record
- Federal contract awards
- IDV awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors