NAICS 237990 · Other Heavy and Civil Engineering Construction

General engineering contractors in Castro Valley, CA

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

42

Safe Cone Zone Inc

Hayward, CA · (800) 676-1350

CA-CSLB 1047919 · C31General engineering contractor
License activechecked Oct 24, 2026
44

3Vi Inc

San Ramon, CA · (925) 236-0170

CA-CSLB 1136949 · AGeneral engineering contractor
License activechecked Oct 24, 2026
45

A+ Contractor Inc

San Leandro, CA · (510) 472-4589

CA-CSLB 1157033 · A C8General engineering contractorConcrete contractor
License activechecked Oct 24, 2026
46

Absl Construction

Hayward, CA · (510) 727-0900

CA-CSLB 621781 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
48

Adams Carolyn a

Dublin, CA · (925) 640-0638

CA-CSLB 669918 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
50

Alarcon Bohm Corp

Oakland, CA · (510) 719-7600

CA-CSLB 680187 · A ASB +5General engineering contractorAsbestos and hazardous materials abatementGeneral contractor+2
License activechecked Oct 24, 2026
52

Alco Iron & Metal Co

San Leandro, CA · (510) 562-1107

CA-CSLB 293917 · A B +1General engineering contractorGeneral contractorExcavation, grading and paving
License activechecked Oct 24, 2026
53

Algebra Probuild Inc

San Leandro, CA · (415) 635-5585

CA-CSLB 1152344 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
54

Allied Fire Protection

Oakland, CA · (510) 533-5516

CA-CSLB 251700 · C12 C16 +2Excavation, grading and pavingFire sprinkler contractorGeneral engineering contractor+1
License activechecked Oct 24, 2026
55

Alpha & the Omega the

Oakland, CA · (510) 875-9206

CA-CSLB 1050422 · A C8 +1General engineering contractorConcrete contractorExcavation, grading and paving
License activechecked Oct 24, 2026
56

Amer Construction Inc

San Ramon, CA · (510) 367-4548

CA-CSLB 1105366 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
58

American Precision Builders

Alameda, CA · (510) 827-7684

CA-CSLB 680013 · A B +1General engineering contractorGeneral contractorAsbestos and hazardous materials abatement
License activechecked Oct 24, 2026
59

Amg Excavating Inc

Danville, CA · (925) 570-4630

CA-CSLB 1020169 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026