Orange County construction: bids, contractors and projects
Caltrans lettings, licensed contractors and project news for Orange County, California, updated daily from public records.
Orange County is part of our District 12 (Irvine) coverage area and falls under Caltrans District 12 (Irvine), headquartered in Irvine. CSLB's license file lists 18,156 construction contractors with a Orange County address: 9,437 licensed General Engineering (A) and General Building (B) contractors and 8,719 licensed specialty (C) and Residential Remodeling (B-2) contractors. The largest single group is CSLB specialty (C) contractor (8,605). Most are based in Anaheim, Santa Ana, Huntington Beach.
Caltrans's advertised letting schedule currently has 4 upcoming proposals in Orange County, the next on Nov 10, 2026.
Upcoming Caltrans lettings in Orange County
| Letting | Proposal | Major work type | Documents |
|---|---|---|---|
| Nov 10, 2026 | 12-0S5004 | Multi-asset, pavement rehab, & off-ramp widening at Artesia Blvd 路 License A,C-8,C-12 | Proposal |
| Nov 17, 2026 | 12-086924 | Construct RW, SW, HMA Pvmt, drainage, and Elect systems 路 License A,C-8,C-12 | Proposal |
| Dec 1, 2026 | 12-0R9704 | Slab replacement, RHMA paving, modify signal and lighting systems 路 License A,C-8,C-12 | Proposal |
| Dec 8, 2026 | 12-0S0804 | Construct maintenance facility and modify traffic management systems 路 License A,B,C | Proposal |
Contractors based in Orange County
Counts come from the Contractors State License Board's License Master file (businesses whose license status is Clear and whose address is in Orange County). Firms holding a General Engineering (A) or General Building (B) classification are counted as general contractors; the rest as specialty contractors.
- CSLB specialty (C) contractor: 8,605
- CSLB General Building (B) contractor: 8,316
- CSLB General Engineering (A) contractor: 1,121
- CSLB Residential Remodeling (B-2) contractor: 114
Find Orange County subcontractors Find Orange County general contractors
Orange County project news
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How to bid public work in Orange County
State highway work in Orange County is let by Caltrans; the county is in Caltrans District 12 (Irvine) (Caltrans districts). Bidders need a CSLB license and, for public works, DIR public works contractor registration. See how to bid Caltrans contracts.
State agencies buy through Cal eProcure (see the supplier registration guide).
Statewide rules that apply here
- Bidding Caltrans: a CSLB license, DIR registration, a bidder ID and a digital ID
- California mechanics liens: 20 days to give notice, 90 days to record, 90 days to sue
Nearby counties
District 12 (Irvine) region: