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Licensed machinery & pumps contractors in Southern California
Every CSLB D-21 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, 99 of 327 (30.3%).
| County | Licenses | Active | Share of SoCal |
|---|---|---|---|
| Los Angeles County | 99 | 94 | 30.3% |
| Orange County | 67 | 64 | 20.5% |
| San Bernardino County | 67 | 65 | 20.5% |
| Riverside County | 57 | 56 | 17.4% |
| San Diego County | 37 | 37 | 11.3% |
Machinery & Pumps (D-21) by city
- Anaheim 12
- Riverside 11
- Orange 9
- San Diego 9
- Chino 9
- San Bernardino 8
- Irvine 7
- Rancho Cucamonga 7
- Ontario 7
- Santa Fe Springs 6
- Huntington Beach 6
- Hesperia 5
- Fontana 5
- Los Angeles 5
- San Dimas 5
- Mira Loma 5
- Hemet 4
- Costa Mesa 4
- Temecula 4
- Long Beach 4
- Escondido 4
- Apple Valley 4
- Norco 4
- Pomona 4
- Corona 4
- Carson 3
- Panorama City 3
- Claremont 3
- Cypress 3
- Hawthorne 3
- Signal Hill 3
- Lake Elsinore 3
- Los Alamitos 3
- Chino Hills 3
- La Puente 2
- Montebello 2
- Baldwin Park 2
- Norwalk 2
- Yorba Linda 2
- Garden Grove 2
- Moreno Valley 2
- Ramona 2
- Phelan 2
- Fullerton 2
- Buena Park 2
- Campo 2
- Lakewood 2
- Covina 2
- Aguanga 2
- Victorville 2
- Murrieta 2
- Arleta 2
- Lakeside 2
- Menifee 2
- Wildomar 2
- Walnut 2
- Jamul 2
- Alpine 2
No new licenses for Machinery & Pumps (D-21) across SoCal
None issued Oct 16 – Oct 22, 2026.
Quick facts
How many licensed machinery & pumps contractors are in Southern California?
327 machinery & pumps contractors with a California CSLB license list a business address in Southern California. 316 of them have an active license in good standing (CSLB data as of 10/22/2026).
How many machinery & pumps contractors in Southern California have a license problem right now?
11 are not in good standing right now, including 5 suspended for missing workers' comp. 28 active licenses expire 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 machinery & pumps 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.