G.s.e. Construction Company, Inc.
Livermore, CA G.s.e. Construction Company, Inc.
- UEI
- JS4MLNK3AFR9
- CAGE
- 0CW03
- 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
- SAM.gov registration date
- Physical address
- US-LVK-7633, 7633 Southfront Rd # 160, Livermore, CA 94551, USA
- Website
- gseconstruction.com
- Founded
- 1980
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 87 Engineering & Management Services
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Headworks repair | International Boundary and Water Commission U.S.-Mexico | $1,778,800 | |
| Yell 310402 grant wastewater treatment plant and collections and canyon collections | National Office | $109,487,800 | |
| Wastewater treatment plant repairs at defense distribution depot SAN joaquin, tracy, CA | ENDIST Sacramento | $9,741,900 | |
| Leadville supply solid contact clarifers | Bureau of Reclamation | $3,769,500 | |
| Purchase Order CA050199606BDACA0596P0668 | Department of the Army | $28,000 |
About G.s.e. Construction Company, Inc.
G.s.e. Construction Company, Inc., a minority-owned, Hispanic American-owned for-profit corporation headquartered in Livermore, California, operates as a prime contractor delivering wastewater treatment plant construction, water infrastructure design-build work, and specialized equipment manufacturing to federal agencies under full-and-open competition with no set-aside designations.
G.s.e. Construction delivers concrete infrastructure and environmental engineering work across water and sewer line construction (NAICS 237110), metal tank and clarifier equipment manufacturing (NAICS 333318), and related repair and upgrade services. Representative recent work includes a $109.5 million firm fixed-price definitive contract awarded by the National Park Service on May 28, 2026, for construction of the Grant Wastewater Treatment Plant and Collections and Canyon Collections project at Yellowstone National Park in Mammoth, Wyoming, running through February 28, 2029; a $9.74 million Army Corps of Engineers Sacramento District contract awarded July 18, 2025, for inspection, design, and repair of the wastewater treatment plant at Defense Distribution Depot San Joaquin in Tracy, California, with completion targeted for February 3, 2027; and a $3.77 million Bureau of Reclamation contract awarded January 18, 2022, for design, fabrication, storage, delivery, and installation of solids clarifier equipment for the Leadville Mine Drainage Tunnel Project in Colorado.
Customer concentration is heavily skewed by recent high-value awards. The Department of the Interior National Park Service dominates potential-value rankings with a single $109.5 million contract (89% of the vendor's combined potential value across all 105 awards), while the Department of the Navy leads award count with 31 awards but carries smaller individual values. The Department of the Interior Bureau of Reclamation holds 15 awards with a combined $3.8 million potential value, and the Department of the Army (nine awards), Department of Energy (twelve awards), and Department of the Air Force (nine awards) round out the active customer set. The top five customer agencies by award count account for 72% of all awards.
G.s.e. Construction operates exclusively as a prime contractor (100% of awards); no subcontractor activity appears in the award portfolio. Recent activity is sparse by annual count — one award each in 2022, 2025, and 2026 — but the 2026 Yellowstone award represents a significant scaling event. Two awards (combined potential value $13.5 million) face ultimate completion inside the next twenty-four months and therefore face recompete exposure. Service Contract Inventory reporting captures only one subcontractor-named record in FY2024 with 17.5 FTEs, indicating that G.s.e. Construction's SCI footprint is minimal relative to its contract-based construction work, which typically does not trigger SCI reporting thresholds.
Quick answers
What is G.s.e. Construction Company, Inc.'s UEI?
G.s.e. Construction Company, Inc.'s Unique Entity ID (UEI) in SAM.gov is JS4MLNK3AFR9.
What is G.s.e. Construction Company, Inc.'s CAGE code?
G.s.e. Construction Company, Inc.'s CAGE code is 0CW03.
What is G.s.e. Construction Company, Inc.'s primary NAICS code?
G.s.e. Construction Company, Inc.'s primary NAICS code is 237110 (Water and Sewer Line and Related Structures Construction).
Where is G.s.e. Construction Company, Inc. located?
G.s.e. Construction Company, Inc.'s physical address in SAM.gov is US-LVK-7633, 7633 Southfront Rd # 160, Livermore, CA 94551, USA.
Is G.s.e. Construction Company, Inc. registered in SAM.gov?
Yes. G.s.e. Construction Company, Inc.'s SAM.gov registration is active through June 11, 2027.
What is G.s.e. Construction Company, Inc.'s most recent federal award?
G.s.e. Construction Company, Inc.'s most recent federal contract award is Headworks repair (191BWC26P0090), from International Boundary and Water Commission U.S.-Mexico, on October 1, 2026.
On GovTribe
See G.s.e. Construction Company, Inc.'s full federal record
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