NAICS 238910 · Site Preparation Contractors

Excavation, grading and paving in El Sobrante, CA

6 licensed excavation, grading and paving · every license checked against the issuer's file

22

Preferred Firestopping Inc

Corona, CA · (951) 735-3725

CA-CSLB 965711 · C2 C21 +2Drywall, plaster and insulationExcavation, grading and pavingSpecialty contractor
License activechecked Oct 24, 2026
23

Prestige Concrete Company

Corona, CA · (951) 270-2999

CA-CSLB 827632 · A B +3General engineering contractorGeneral contractorConcrete contractor+1
License activechecked Oct 24, 2026
27

Reliable Septic

Corona, CA · (951) 231-0590

CA-CSLB 1081510 · C42Excavation, grading and paving
License activechecked Oct 24, 2026
28

Rivard Timothy a

Riverside, CA · (951) 360-8596

CA-CSLB 231048 · A C16 +3General engineering contractorFire sprinkler contractorExcavation, grading and paving+1
License activechecked Oct 24, 2026
37

Star 1 M S Inc

Jurupa Valley, CA · (800) 554-3585

CA-CSLB 811329 · B C10 +1General contractorElectricianExcavation, grading and paving
License activechecked Oct 24, 2026
39

Swift Electric

Jurupa Valley, CA · (714) 615-0980

CA-CSLB 429881 · A B +2General engineering contractorGeneral contractorElectrician+1
License activechecked Oct 24, 2026
40

Swiss Construction

Mira Loma, CA · (951) 323-0716

CA-CSLB 426479 · A C12General engineering contractorExcavation, grading and paving
License activechecked Oct 24, 2026