Licensed D51 contractors in Southern California
Every CSLB D-51 license with a business address in Los Angeles, Orange, San Diego, Riverside or San Bernardino County, from CSLB data updated 10/22/2026.
By county
Los Angeles County has the most, 12 of 26 (46.2%).
| County | Licenses | Active | Share of SoCal |
|---|---|---|---|
| Los Angeles County | 12 | 11 | 46.2% |
| Orange County | 8 | 8 | 30.8% |
| San Diego County | 2 | 2 | 7.7% |
| Riverside County | 2 | 2 | 7.7% |
| San Bernardino County | 2 | 2 | 7.7% |
D51 (D-51) by city
No new licenses for D51 (D-51) across SoCal
None issued Oct 16 – Oct 22, 2026.
Quick facts
How many licensed D51 contractors are in Southern California?
26 D51 contractors with a California CSLB license list a business address in Southern California. 25 of them have an active license in good standing (CSLB data as of 10/22/2026).
How many D51 contractors in Southern California have a license problem right now?
1 is not in good standing right now, including 1 suspended for missing workers' comp. 1 active license expires within 90 days. Each county and city list linked here shows the status and a plain-English OK-to-hire verdict.
How do I check if a D51 contractor is licensed?
Search the business name or license number on LicenseWatch CA to see license status, bond and workers' comp in one place, then confirm on the CSLB website before you sign a contract. In California, work over $1,000 in labor and materials requires a licensed contractor.
New and lapsed SoCal licenses, every Monday
New licenses, expirations and workers' comp lapses across five counties. One short email a week.