G S E CONSTRUCTION COMPANY INC
California contractor license #401498 · Livermore, Alameda County
License
- License number
- 401498
- Status
- Clear
- Classifications
- A General Engineering Contractor
- B General Building Contractor
- C-10 Electrical Contractor
- C-16 Fire Protection Contractor
- C-36 Plumbing Contractor
- C-61/D-21 Machinery and Pumps
- Business type
- Corporation
- Issued
- Mar 18, 1981
- Expires
- Mar 31, 2027
- Workers' compensation
- Workers' Compensation Insurance — Property And Casualty Insurance Company Of Hartford
- Contractor's bond
- $25,000 — Fidelity And Deposit Company Of Maryland
- DIR public works registration
- Registered through Jun 30, 2027
From the California Contractors State License Board (CSLB) public license file, last updated Oct 1, 2026. Verify license #401498 on CSLB's License Check.
California public works
G S E CONSTRUCTION COMPANY INC appears on 136 public works projects registered with the California Department of Industrial Relations, 55 of them as the prime contractor, for 64 awarding bodies between 2011 and 2026. Projects it led total $146,991,263 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Sep 10, 2026 | GSE Shephard ReservoirWater | Cal Poly State University, San Luis Obispo | Prime | $95,150 |
| Aug 28, 2026 | On-Call Maintenance & Repair - GSEDesign, inspection & consulting | City of Sunnyvale | Prime | $250,000 |
| Aug 26, 2026 | On-Call Temporary Personnel Services GSEDesign, inspection & consulting | City of Sunnyvale | Prime | $250,000 |
| Aug 26, 2026 | HCTP Cleanout and Clarifier Beach RepairPaving & streets | City of Thousand Oaks | Prime | $234,234 |
| Aug 17, 2026 | Secondary Clarifier 3 Drive RplcmtElectrical, low voltage & AV | City of Thousand Oaks | Prime | $78,187 |
| Aug 10, 2026 | Pond Strainer Improvements ProjectWater | Novato Sanitary District | Prime | $66,274 |
| Aug 5, 2026 | Stormwater Lift Stn Rehab Chester/BNSFSewer & wastewater | City of Bakersfield | Prime | $1,563,392 |
| Jul 28, 2026 | Well 16 Hexavalent Chromium TreatmentSewer & wastewater | City of Vacaville | Prime | $3,132,900 |
| Jul 15, 2026 | Water Quality Monitoring InstrumentationWater | Contra Costa Water District | Prime | $434,800 |
| Jul 15, 2026 | Water Quality InstrumentationWater | Contra Costa Water District | Prime | $434,800 |
| Jun 30, 2026 | City of Brentwood EarthTec Tank PadConcrete & masonry | Contra Costa Water District | Prime | $89,276 |
| Jun 24, 2026 | ODOR CONTROL IMPROVEMENTS PROJECTOther | Encina Wastewater Authority | Prime | $14,066,066 |
| Jun 11, 2026 | Storm Drain Corrugated Metal Pipe (CMP)Storm drain & flood control | City of Vacaville - Public Works Department | Prime | $73,100 |
| May 21, 2026 | Equipping of well 8, bluff road boosterWater | South Montebello Irrigation District | Prime | $11,316,613 |
| Apr 27, 2026 | EWWTP Chlorine Contact Basin Ladder/GateSewer & wastewater | City of Vacaville | Prime | $47,345 |
| Apr 20, 2026 | Effluent Pump InstallSewer & wastewater | Sewer Authority Mid-Coastside | Prime | $368,500 |
| Apr 16, 2026 | Digester 1 and 2 Valve ReplacementOther | City of San Leandro WPCP | Prime | $65,125 |
| Apr 15, 2026 | RP-1 Primary Clarifiers RehabilitationSewer & wastewater | Inland Empire Utilities Agency | Prime | $14,463,363 |
| Mar 18, 2026 | SCV Water Filter Rehab Project Phase 2Water | Santa Clarita Valley Water Agency | Prime | $1,997,000 |
| Feb 23, 2026 | Primary Sedimentation Basin Phase II ConOther | Encina Wastewater Authority | Prime | $4,665,700 |
| Feb 20, 2026 | Grease Recirculation Pump InstallationOther | Oro Loma Sanitary District | Prime | $44,250 |
| Feb 3, 2026 | Union Mine Wastewater Digester ProjectSewer & wastewater | County of El Dorado | Prime | $373,700 |
| Dec 18, 2025 | SJVRWRF Aeration Basin Rehab & DiffusersOther | Eastern Municipal Water District | Prime | $6,764,800 |
| Nov 18, 2025 | Carbon Canyon Booster Pump Station No 2Water | City of Brea | Prime | $2,667,000 |
| Nov 18, 2025 | WQCP - Hdwks Barscreens InstallationOther | City of Riverside - Public Works Engineering | Prime | $427,309 |
Most recent 25 of 136. Contract amounts are the whole project's, as the awarding body reported them to DIR (reported since July 2024); a role is "Prime" when the awarding body registered the contractor on the project.
Awarding bodies it works for most
- Contra Costa Water District · 9 projects
- City of Bakersfield · 9 projects
- City of Thousand Oaks · 7 projects
- Cal Poly State University, San Luis Obispo · 5 projects
- City of Corona - 01 · 5 projects
- City of Vacaville · 5 projects
- City of Visalia - Purchasing · 5 projects
- Oro Loma Sanitary District · 4 projects
- OLIVENHAIN MUNICIPAL WATER DISTRICT · 4 projects
- Santa Clarita Valley Water Agency · 3 projects
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