NAICS 237990 · Other Heavy and Civil Engineering Construction

General engineering contractors in Clayton, CA

9 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
1,359 listingsHow results are ordered
101

Seeno Albert D III

Concord, CA · (925) 682-6419

CA-CSLB 750828 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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102

Seeno David T

Pleasant Hill, CA · (925) 483-2589

CA-CSLB 1030096 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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103

Seeno Thomas Albert

Walnut Creek, CA · (925) 932-4655

CA-CSLB 281272 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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104

Service Pros Plumbers Inc

Antioch, CA · (925) 753-5600

CA-CSLB 979455 · C34 C36 +1General engineering contractorPlumberExcavation, grading and paving
License activechecked Oct 24, 2026
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106

Slr International Corporation

Walnut Creek, CA · (510) 451-1761

CA-CSLB 991727 · A HAZGeneral engineering contractorAsbestos and hazardous materials abatement
License activechecked Oct 24, 2026
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109

Stier Engineering

Antioch, CA · (951) 805-2440

CA-CSLB 1148360 · AGeneral engineering contractor
License activechecked Oct 24, 2026
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111

Swinerton Builders

Concord, CA · (925) 602-6400

CA-CSLB 92 · A ASB +17General engineering contractorAsbestos and hazardous materials abatementGeneral contractor+2
License activechecked Oct 24, 2026
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115

Swinerton / Webcor JV

Concord, CA · (925) 602-6400

CA-CSLB 1037955 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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117

Tcpaf Inc

Walnut Creek, CA · (415) 612-0588

CA-CSLB 1097485 · C31General engineering contractor
License activechecked Oct 24, 2026
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118

Telecom Steel LLC

Walnut Creek, CA · (847) 525-3960

CA-CSLB 1133243 · A B +1General engineering contractorGeneral contractorElectrician
License activechecked Oct 24, 2026
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119

Teverbaugh Drilling

Pleasant Hill, CA · (925) 408-9504

CA-CSLB 968542 · AGeneral engineering contractor
License activechecked Oct 24, 2026
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120

Thor Trevor Conrad

Pleasant Hill, CA · (925) 354-0569

CA-CSLB 995113 · AGeneral engineering contractor
License activechecked Oct 24, 2026
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