NAICS 237990 · Other Heavy and Civil Engineering Construction

General engineering contractors in Sonoma, CA

21 licensed general engineering contractors · every license checked against the issuer's file

More cities in California

Bakersfield 337San Francisco 307San Diego 273Sacramento 244Los Angeles 235Riverside 191San Jose 188Fresno 184Irvine 140Santa Rosa 134Corona 122Redding 119El Cajon 117Anaheim 116Oakland 111Temecula 110
835 listingsHow results are ordered
01

Wellander Corporation

Sonoma, CA · (707) 934-8198

CA-CSLB 985622 · A C60General engineering contractorSteel and welding contractor
License activechecked Oct 24, 2026
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04

All Bay Drilling Inc

Petaluma, CA · (707) 762-1199

CA-CSLB 734075 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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05

Alpha Trenchless

Petaluma, CA · (415) 377-6939

CA-CSLB 1044308 · C34 C36General engineering contractorPlumber
License activechecked Oct 24, 2026
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09

Bell Products Inc

Napa, CA · (707) 255-1811

CA-CSLB 171534 · A B +4General engineering contractorGeneral contractorPlumber+1
License activechecked Oct 24, 2026
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12

Bpi Oneroof

Napa, CA · (707) 252-9990

CA-CSLB 930054 · A C10 +1General engineering contractorElectricianRoofer
License activechecked Oct 24, 2026
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16

Corona Seal and Stripe

Napa, CA · (707) 815-1743

CA-CSLB 1102542 · C32 D30Excavation, grading and pavingGeneral engineering contractor
License activechecked Oct 24, 2026
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17

Curran Environmental Services Inc

Petaluma, CA · (707) 529-6693

CA-CSLB 269122 · A ASB +3General engineering contractorAsbestos and hazardous materials abatementGeneral contractor+1
License activechecked Oct 24, 2026
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19

D E S Builders

Napa, CA · (707) 226-7600

CA-CSLB 904879 · A B +1General engineering contractorGeneral contractorElectrician
License activechecked Oct 24, 2026
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