WILLIAM KELLER
California contractor license #541912 · Glendale, Los Angeles County
License
- License number
- 541912
- Status
- Clear
- Classifications
- B General Building Contractor
- C-55 Water Conditioning Contractor
- Business type
- Sole Owner
- Issued
- Sep 22, 1988
- Expires
- Sep 30, 2028
- Workers' compensation
- Workers' Compensation Insurance — Everest Premier Insurance Company
- Contractor's bond
- $25,000 — American Contractors Indemnity Company
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Sep 18, 2026. Verify license #541912 on CSLB's License Check.
California public works
WILLIAM KELLER appears on 6 public works projects registered with the California Department of Industrial Relations, 6 of them as the prime contractor, for 2 awarding bodies between 2025 and 2026. Projects it led total $590,560 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Sep 24, 2026 | APU SUB MEDIA RPLCMTOther | City of Anaheim Facility Services | Prime | $62,712 |
| Sep 2, 2026 | APU Substation Water Treatment Annual SeWater | City of Anaheim Facility Services | Prime | $15,480 |
| Aug 13, 2026 | ANAHEIM SUBSTATION MEDIA RPLCMTOther | City of Anaheim Facility Services | Prime | $99,712 |
| May 7, 2026 | ACC COOLING TOWER WATER TREATMENTWater | City of Anaheim Facility Services | Prime | $179,472 |
| Oct 2, 2025 | ACC-WATER TREATMENT SVCSWater | City of Anaheim Facility Services | Prime | $179,472 |
| Jul 8, 2025 | Cooling Tower ServiceHVAC & mechanical | County of Alameda GSA-BMD | Prime | $53,712 |
Most recent 6 of 6. 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
- City of Anaheim Facility Services · 5 projects
- County of Alameda GSA-BMD · 1 project
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