NAICS 238910 · Site Preparation Contractors

Excavation, grading and paving in Ontario, CA

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

122

Raze Demolition

Riverside, CA · (951) 545-8748

CA-CSLB 1127879 · C21Excavation, grading and paving
License activechecked Oct 24, 2026
123

Reyes Construction Inc

Pomona, CA · (909) 622-2259

CA-CSLB 507561 · A B +2General engineering contractorGeneral contractorExcavation, grading and paving+1
License activechecked Oct 24, 2026
124

Ridley Howard Co Inc

Chino, CA · (909) 590-7415

CA-CSLB 304198 · A B +5General engineering contractorGeneral contractorExcavation, grading and paving+2
License activechecked Oct 24, 2026
127

Sci

Alta Loma, CA · (909) 981-2700

CA-CSLB 984859 · A B +3General engineering contractorGeneral contractorExcavation, grading and paving+1
License activechecked Oct 24, 2026
128

Smith James Douglas

Chino Hills, CA · (714) 904-0238

CA-CSLB 610453 · A B +1General engineering contractorGeneral contractorExcavation, grading and paving
License activechecked Oct 24, 2026
133

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
135

Swift Electric

Jurupa Valley, CA · (714) 615-0980

CA-CSLB 429881 · A B +2General engineering contractorGeneral contractorElectrician+1
License activechecked Oct 24, 2026
136

Swiss Construction

Mira Loma, CA · (951) 323-0716

CA-CSLB 426479 · A C12General engineering contractorExcavation, grading and paving
License activechecked Oct 24, 2026
137

Team Reliant Inc

Chino, CA · (714) 397-8048

CA-CSLB 677539 · A ASB +5General engineering contractorAsbestos and hazardous materials abatementExcavation, grading and paving+1
License activechecked Oct 24, 2026