WILLIAMS PIPELINE CONTRACTORS INC
California contractor license #353528 · Mission Hills, Los Angeles County
License
- License number
- 353528
- Status
- Clear
- Classifications
- A General Engineering Contractor
- C-34 Pipeline Contractor
- C-36 Plumbing Contractor
- C-42 Sanitation System Contractor
- Business type
- Corporation
- Issued
- Mar 17, 1978
- Expires
- Aug 31, 2028
- Workers' compensation
- Workers' Compensation Insurance — Travelers Property Casualty Company Of America
- Contractor's bond
- $25,000 — Swiss Re Corporate Solutions Premier Insurance Corporation
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Jul 9, 2026. Verify license #353528 on CSLB's License Check.
California public works
WILLIAMS PIPELINE CONTRACTORS INC appears on 91 public works projects registered with the California Department of Industrial Relations, 83 of them as the prime contractor, for 11 awarding bodies between 2024 and 2026. Projects it led total $60,985,241 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Oct 1, 2026 | ESR - National Blvd. -10600 BlockSewer & wastewater | City of Los Angeles Bureau of Engineering | Prime | $350,000 |
| Sep 24, 2026 | ESR - Goya St (17000 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $40,000 |
| Sep 22, 2026 | ESR - 51st St (100 Block)Buildings & facilities | City of Los Angeles Bureau of Engineering | Prime | $60,000 |
| Sep 21, 2026 | ESR - Trigger St (22800 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $150,000 |
| Sep 8, 2026 | ESR - Bevis Ave (5700 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $150,000 |
| Sep 1, 2026 | On-Call Emergency Water Systems RepairSewer & wastewater | City of El Segundo | Prime | $500,000 |
| Sep 1, 2026 | On-Call Emergency Sewer Systems RepairSewer & wastewater | City of El Segundo | Prime | $500,000 |
| Aug 31, 2026 | ESR - Baird Ave (6000 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $60,000 |
| Aug 13, 2026 | ESR - Vermont Ave (1600 Block)Electrical, low voltage & AV | City of Los Angeles Bureau of Engineering | Prime | $10,000 |
| Aug 12, 2026 | ESDR - 4799 Bryn Mawr Rd-CBStorm drain & flood control | City of Los Angeles Bureau of Engineering | Prime | $25,000 |
| Aug 11, 2026 | ESR - Sutter Ave - 13200 BlockSewer & wastewater | City of Los Angeles Bureau of Engineering | Prime | $100,000 |
| Aug 3, 2026 | ESR - Sichel St (2600 Block)Buildings & facilities | City of Los Angeles Bureau of Engineering | Prime | $150,000 |
| Jul 21, 2026 | Water Main Replacements Phase 2Water | City of Beverly Hills - Department of Public Works | Prime | $5,470,380 |
| Jul 13, 2026 | ESR - W Foothill Blvd (16300 Block)Sewer & wastewater | City of Los Angeles Bureau of Engineering | Prime | $322,350 |
| Jul 1, 2026 | ESR - Valley Blvd (5100 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $140,000 |
| Jun 30, 2026 | ESR - Isabel Dr (3300 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $30,000 |
| Jun 30, 2026 | CIP No. 26-02, 6-Inch Water Main Ext.Water | City of Glendale - GWP Water Engineering | Prime | $103,500 |
| Jun 2, 2026 | ESR - Windward Ave - 10 E BlockOther | City of Los Angeles Bureau of Engineering | Prime | $20,000 |
| Jun 2, 2026 | Emergency Sewer Manhole RepairSewer & wastewater | City of El Segundo | Prime | $24,900 |
| May 22, 2026 | ESR - Pyrites St (3200 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $35,000 |
| May 14, 2026 | Broadlawn Dr. RW (3700 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $65,000 |
| May 8, 2026 | ESR - Barneston St (17000 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $100,000 |
| May 1, 2026 | ESR - Bradwell Ave (8400 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $5,000 |
| Apr 27, 2026 | Abalone Cove Sewer Rehab - April 2026Sewer & wastewater | City of Rancho Palos Verdes | Prime | $261,000 |
| Apr 17, 2026 | ESR - Hastings Ave (9200 Block)Other | City of Los Angeles Bureau of Engineering | Prime | $100,000 |
Most recent 25 of 91. 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 Los Angeles Bureau of Engineering · 61 projects
- City of El Segundo · 8 projects
- The City of Downey · 5 projects
- City of Fullerton · 4 projects
- City of Rancho Palos Verdes · 3 projects
- City of Beverly Hills - Department of Public Works · 3 projects
- City of Glendale - GWP Water Engineering · 2 projects
- City of Whittier - PW · 2 projects
- County of Los Angeles Department of Public Works · 1 project
- City of Inglewood - Public Works · 1 project
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