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
02

Gordon N Ball Inc

Walnut Creek, CA

US-GSA-SAM MCQNLFAUA624General engineering contractor
License activechecked Oct 23, 2026
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04

Guerra Bros Plumbing Inc

Concord, CA · (925) 288-0409

CA-CSLB 802256 · A C36 +1General engineering contractorPlumberExcavation, grading and paving
License activechecked Oct 24, 2026
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06

H V USA Enterprises

Antioch, CA · (714) 654-8281

CA-CSLB 1092514 · A C12 +1General engineering contractorExcavation, grading and paving
License activechecked Oct 24, 2026
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11

Hydro Kingz Inc

Antioch, CA · (925) 848-7651

CA-CSLB 1151169 · AGeneral engineering contractor
License activechecked Oct 24, 2026
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12

Hydro Kingz Inc.

Antioch, CA

US-GSA-SAM U9DWT8YEDUF3General engineering contractor
License activechecked Oct 23, 2026
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13

Imperial Custom Kitchen

Antioch, CA · (925) 779-9786

CA-CSLB 782522 · B D30General contractorGeneral engineering contractor
License activechecked Oct 24, 2026
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15

Independent Construction Company

Concord, CA · (925) 686-1780

CA-CSLB 215611 · A C12 +1General engineering contractorExcavation, grading and pavingAsbestos and hazardous materials abatement
License activechecked Oct 24, 2026
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16

Janus Corporation

Concord, CA · (925) 969-9200

CA-CSLB 572682 · A ASB +5General engineering contractorAsbestos and hazardous materials abatementGeneral contractor+2
License activechecked Oct 24, 2026
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17

Joe a Callaway

Danville, CA · (925) 413-0523

CA-CSLB 555222 · A C10 +1General engineering contractorElectricianAsbestos and hazardous materials abatement
License activechecked Oct 24, 2026
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18

K&K Construction

Concord, CA · (510) 209-0742

CA-CSLB 1079152 · A B +3General engineering contractorGeneral contractorElectrician+2
License activechecked Oct 24, 2026
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19

Konstructo Inc

Walnut Creek, CA · (925) 639-3674

CA-CSLB 1032050 · A B +1General engineering contractorGeneral contractorFire sprinkler contractor
License activechecked Oct 24, 2026
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