CASTILLON COMPANY
California contractor license #1105257 · Oakland, Alameda County
License
- License number
- 1105257
- Status
- Clear
- Classifications
- A General Engineering Contractor
- Business type
- Corporation
- Issued
- May 25, 2023
- Expires
- May 31, 2027
- Workers' compensation
- Workers' Compensation Insurance — State Compensation Insurance Fund
- Contractor's bond
- $25,000 — American Contractors Indemnity Company
- DIR public works registration
- Registered through Jun 30, 2029
From the California Contractors State License Board (CSLB) public license file, last updated Aug 26, 2026. Verify license #1105257 on CSLB's License Check.
California public works
CASTILLON COMPANY appears on 22 public works projects registered with the California Department of Industrial Relations, 1 of them as the prime contractor, for 15 awarding bodies between 2022 and 2026. Projects it led total $1,763,279 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Jul 16, 2026 | Sequoia Elementary School Site ImproveParks, landscape & fields | Oakland Unified School District | Subcontractor | $816,100 |
| Jul 7, 2026 | Alameda Aquatic CenterParks, landscape & fields | City Of Alameda - Recreation Department | Subcontractor | $32,000,000 |
| Mar 25, 2026 | Walters MS Interim HousingBuildings & facilities | FREMONT UNIFIED SCHOOL DISTRICT | Subcontractor | $294,000 |
| Feb 20, 2026 | 27th Street Complete StreetsPaving & streets | CITY OF OAKLAND OPW | Subcontractor | $10,418,574 |
| Jan 26, 2026 | Calvin Simmons Turf Field Replacement -Storm drain & flood control | Oakland Unified School District | Subcontractor | $847,700 |
| Jul 10, 2025 | Redgwick Construction CompanyStorm drain & flood control | Oakland Unified School District | Subcontractor | $1,967,300 |
| Jul 10, 2025 | ICS-TCN at Cesar Chavez Site Turf FieldStorm drain & flood control | Oakland Unified School District | Subcontractor | $1,114,913 |
| Jun 17, 2025 | La Vista ParkParks, landscape & fields | City of Hayward Public Works - E & T | Subcontractor | $36,942,547 |
| Jun 16, 2025 | Mulford Marina Branch LibraryBuildings & facilities | City of San Leandro | Subcontractor | $6,994,000 |
| Jun 2, 2025 | Cumberland ES HVAC and FinishesHVAC & mechanical | Sunnyvale School District | Subcontractor | $8,334,159 |
| Apr 24, 2025 | City Sanitary Sewer RepairSewer & wastewater | CITY OF OAKLAND OPW | Subcontractor | $914,500 |
| Feb 13, 2025 | 14th Ave Streetscape Project Phase 1 & 3Other | CITY OF OAKLAND OPW | Subcontractor | $7,235,897 |
| Nov 5, 2024 | Park Road RehabilitationStorm drain & flood control | Town of Fairfax | Prime | $1,763,279 |
| May 15, 2024 | West Portal ES ModernizationBuildings & facilities | San Francisco Unified School District | Subcontractor | — |
| Apr 30, 2024 | Shannon Elementary SchoolBuildings & facilities | West Contra Costa Unified School District | Subcontractor | — |
| Apr 22, 2024 | CVSAN 2316Sewer & wastewater | Crockett/Pt Costa Sanitary Department | Subcontractor | — |
| Apr 15, 2024 | Orange Memorial Park Aquatic CenterParks, landscape & fields | City of South San Francisco | Subcontractor | — |
| Feb 29, 2024 | 1006466 Cary Avenue Trash Capture DeviceOther | CITY OF OAKLAND OPW | Subcontractor | — |
| Feb 29, 2024 | 1006066 Mandela Parkway Trash Capture DeOther | CITY OF OAKLAND OPW | Subcontractor | — |
| Jan 28, 2024 | Headquarters ProjectDemolition & site work | North Coast County Water District | Subcontractor | — |
| Jun 12, 2023 | McKinley ES Front Entry and Drop Off ConOther | San Leandro Unified School District | Subcontractor | — |
| Nov 12, 2022 | Fire Station 16 Replacement ProjectDemolition & site work | City of San Carlos | Subcontractor | — |
Most recent 22 of 22. 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 OAKLAND OPW · 5 projects
- Oakland Unified School District · 4 projects
- City of San Carlos · 1 project
- West Contra Costa Unified School District · 1 project
- City of Hayward Public Works - E & T · 1 project
- FREMONT UNIFIED SCHOOL DISTRICT · 1 project
- North Coast County Water District · 1 project
- San Leandro Unified School District · 1 project
- City of South San Francisco · 1 project
- City of San Leandro · 1 project
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