KWAN WO IRONWORKS INC
California contractor license #643621 · Hayward, Alameda County
License
- License number
- 643621
- Status
- Clear
- Classifications
- B General Building Contractor
- C-51 Structural Steel Contractor
- Business type
- Corporation
- Issued
- Apr 29, 1992
- Expires
- Apr 30, 2028
- Workers' compensation
- Workers' Compensation Insurance — State Compensation Insurance Fund
- Contractor's bond
- $25,000 — Suretec Insurance Company
- DIR public works registration
- Registered through Jun 30, 2027
From the California Contractors State License Board (CSLB) public license file, last updated Apr 16, 2026. Verify license #643621 on CSLB's License Check.
California public works
KWAN WO IRONWORKS INC appears on 64 public works projects registered with the California Department of Industrial Relations, 1 of them as the prime contractor, for 52 awarding bodies between 2018 and 2026. Projects it led total $19,615 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Aug 11, 2026 | Berth 24 Backlands Redevelopment ProjectOther | PORT OF OAKLAND | Subcontractor | $50,687,770 |
| Jun 2, 2026 | Student Housing Balconies Inspection REBOther | University of CA-Berkeley | Subcontractor | $521,166 |
| Apr 16, 2026 | John Adams Allied Health RelocationOther | San Francisco Community College District | Subcontractor | $5,929,929 |
| Mar 17, 2026 | WWTP HVAC ReplacementsSewer & wastewater | Dublin San Ramon Services District | Subcontractor | $4,186,000 |
| Feb 6, 2026 | Educational Options Center Project - VHSBuildings & facilities | Pleasanton Unified School District | Subcontractor | $34,843,101 |
| Jan 26, 2026 | Fire Station No. 1 Station ImprovementsFire & life safety | City of Petaluma | Subcontractor | $5,895,000 |
| Jan 22, 2026 | Increment 2 Building ConstructionBuildings & facilities | Santa Clara Unified School District | Subcontractor | $122,200 |
| Dec 11, 2025 | RNEW - MB RC Entry Door Replacement (OwePainting & flooring | UCSF Real Estate | Subcontractor | $334,141 |
| Nov 4, 2025 | Antioch Library Electrical Upgrade ProjElectrical, low voltage & AV | Contra Costa County Public Works Department | Subcontractor | $870,000 |
| Oct 20, 2025 | Fire Station No. 4 Replacement ProjectPaving & streets | City of Palo Alto | Subcontractor | $11,530,676 |
| Oct 20, 2025 | Las Flores Community CenterBuildings & facilities | City of Napa - Public Works Department | Subcontractor | $2,258,000 |
| Aug 1, 2025 | SF Animal Care & Ctrl Tenant ImprBuildings & facilities | City and County of San Francisco - Dept. of Public Works | Subcontractor | $2,363,330 |
| Jul 8, 2025 | Pinole Library System UpgradeBuildings & facilities | Contra Costa County Public Works Department | Subcontractor | $3,118,000 |
| Jul 3, 2025 | Treasure Island Ferry Terminal EnhancmntPlumbing & restrooms | Treasure Island Mobility Management Agency | Subcontractor | $3,047,000 |
| Jun 16, 2025 | Mulford Marina Branch LibraryBuildings & facilities | City of San Leandro | Subcontractor | $6,994,000 |
| May 29, 2025 | BVHM ModernizationRoofing | San Francisco Unified School District | Subcontractor | $68,880,700 |
| May 21, 2025 | Paradise Drive Pavement Rehab ProjectPaving & streets | Town of Tiburon | Subcontractor | $1,472,838 |
| Apr 22, 2025 | Generator Stack Extension ServicesElectrical, low voltage & AV | Department of State Hospitals - Napa | Subcontractor | $985,520 |
| Apr 14, 2025 | Buchanan Street Mall RenovationPaving & streets | City and County of San Francisco - Dept. of Public Works | Subcontractor | $21,513,550 |
| Mar 18, 2025 | WPCF Administration BuildingDemolition & site work | City of Hayward | Subcontractor | $39,970,000 |
| Feb 13, 2025 | El Camino Central Kitchen CafeteriaBuildings & facilities | South San Francisco Unified School District | Subcontractor | $10,692,036 |
| Jan 29, 2025 | Regional Street ApartmentsPaving & streets | Regional Street Investors, L.P. | Subcontractor | $47,513,677 |
| Jan 28, 2025 | Child Nutrition WarehouseOther | Fairfield-Suisun Unified School District | Subcontractor | $2,097,350 |
| Dec 17, 2024 | Linear Park Node 4A - 2030 N. Texas RecrPaving & streets | City of Fairfield | Subcontractor | $13,385,000 |
| Dec 17, 2024 | Mod. of G&H Bldg. at Venetia Valley ESBuildings & facilities | San Rafael City Schools | Subcontractor | $3,323,694 |
Most recent 25 of 64. 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 Campbell · 2 projects
- Fremont Union High School District · 2 projects
- East Side Union High School District · 2 projects
- San Francisco Unified School District · 2 projects
- Peralta Community College District · 2 projects
- Department of General Services · 2 projects
- City and County of San Francisco - Dept. of Public Works · 2 projects
- Contra Costa County Public Works Department · 2 projects
- City of Palo Alto · 2 projects
- San Rafael City Schools · 2 projects
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