POWER SYSTEMS TESTING CO
California contractor license #306378 · Livermore, Alameda County
License
- License number
- 306378
- Status
- Clear
- Classifications
- C-10 Electrical Contractor
- Business type
- Corporation
- Issued
- Jun 3, 1975
- Expires
- Jun 30, 2027
- Workers' compensation
- Workers' Compensation Insurance — Starr Indemnity & Liability Company
- Contractor's bond
- $25,000 — Arch Insurance Company
- DIR public works registration
- Registered through Jun 30, 2029
From the California Contractors State License Board (CSLB) public license file, last updated Sep 23, 2026. Verify license #306378 on CSLB's License Check.
California public works
POWER SYSTEMS TESTING CO appears on 110 public works projects registered with the California Department of Industrial Relations, 4 of them as the prime contractor, for 89 awarding bodies between 2018 and 2026. Projects it led total $243,977 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Aug 25, 2026 | Site 980 - Maintenance TestingElectrical, low voltage & AV | Madera Chowchilla Water & Power Authority | Prime | $31,377 |
| Jun 9, 2026 | Switchgear Batteries Service PackageElectrical, low voltage & AV | City of Fairfield | Subcontractor | $5,027 |
| Jan 26, 2026 | Feeder Relay CalibrationOther | Sacramento Area Sewer District | Prime | $8,600 |
| Jan 16, 2026 | A1 Pump StationWater | County of Santa Cruz DPW | Subcontractor | $25,000 |
| Jan 14, 2026 | Fairview & Planz ASSP Office BuildingDemolition & site work | Greenfield Union School District | Subcontractor | $3,036,079 |
| Jan 14, 2026 | DOT D5 ELECTRIC VEHICLE SUPPLY EQUIPMENTSolar, EV & energy | Department of General Services | Subcontractor | $68,645 |
| Nov 19, 2025 | Medium Voltage PM & Testing ServicesElectrical, low voltage & AV | CSU Channel Islands Campus | Prime | $102,000 |
| Nov 19, 2025 | Medium Voltage Preventative MaintenanceElectrical, low voltage & AV | CSU Channel Islands Campus | Prime | $102,000 |
| Sep 23, 2025 | Alexandria & 14-Mile Storm Pump StationStorm drain & flood control | City of Stockton Municipal Utilities Department | Subcontractor | $381,497 |
| Sep 4, 2025 | ETSU 1B - Secondary & Effluent Fac. UpgrSewer & wastewater | Union Sanitary District | Subcontractor | $324,530,134 |
| Jun 11, 2025 | TBEC 6 (2025)Parks, landscape & fields | Clovis Unified School District | Subcontractor | $99,259,772 |
| Jun 9, 2025 | Griffin Academy Shade StructureElectrical, low voltage & AV | Griffin Technology Academies | Subcontractor | $2,986,000 |
| May 27, 2025 | 0616 S2 Modernizations-CL, HH, SEBuildings & facilities | Moreno Valley Unified School District. | Subcontractor | $35,142,391 |
| Apr 2, 2025 | Roseville Power Plant #2 RepowerOther | City of Roseville - Electric Department | Subcontractor | $38,835,925 |
| Mar 6, 2025 | Networking Center Relocation and AdminisElectrical, low voltage & AV | Calleguas Municipal Water District | Subcontractor | $2,184,000 |
| Feb 11, 2025 | MHS Phase 1 Inc 2 Campus SiteDemolition & site work | Modesto City Schools | Subcontractor | $8,645,000 |
| Feb 5, 2025 | The Crossroads Shopping MallSolar, EV & energy | EVgo Services LLC | Subcontractor | $400,000 |
| Jan 28, 2025 | MLK JR. Library ModernizationBuildings & facilities | City of Sacramento Department of General Services | Subcontractor | $10,554,658 |
| Jan 16, 2025 | Tisdale Weir Rehabilitation and Fish PasDemolition & site work | California Department of Water Resources, DOE-CCS | Subcontractor | $27,644,020 |
| Dec 10, 2024 | ML Portable ProjectDemolition & site work | Lemoore Union Elementary School District | Subcontractor | $1,746,479 |
| Dec 3, 2024 | Energy Conservation Phase 1HVAC & mechanical | City of Fairfield | Subcontractor | $29,998,064 |
| Nov 13, 2024 | TBEC 5 (2024)Parks, landscape & fields | Clovis Unified School District | Subcontractor | $23,373,409 |
| Nov 12, 2024 | Rancho Cucamonga H.S. Bldgs D & M Mod.Buildings & facilities | Chaffey Joint Union High School District | Subcontractor | $2,268,227 |
| Oct 15, 2024 | Professional Baseball StadiumBuildings & facilities | City of Ontario - Public Works Agency | Subcontractor | $234,000,000 |
| Sep 11, 2024 | 2024-25-01 GVHS New Classroom BuildingBuildings & facilities | Beaumont Unified School District | Subcontractor | $5,041,163 |
Most recent 25 of 110. 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
- Long Beach USD - Facilities Development & Planning · 3 projects
- Clovis Unified School District · 3 projects
- Department of General Services · 3 projects
- Moreno Valley Unified School District. · 3 projects
- Alameda County Flood Control and Water Conservation District, Zone 7 · 2 projects
- Reclamation District 2062 · 2 projects
- Victor Valley College · 2 projects
- County of Sacramento · 2 projects
- City of Fairfield · 2 projects
- San Bernardino City USD · 2 projects
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