NAICS 237990 · Other Heavy and Civil Engineering Construction

General engineering contractors in Ontario, CA

63 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
Listings 1–20How results are ordered
01

Davcas Engineering LLC

Jurupa Valley, CA · (951) 934-3760

CA-CSLB 1136139 · A B +2General engineering contractorGeneral contractorExcavation, grading and paving+1
License activechecked Oct 24, 2026
CallDetails
03

Desteuben Kyle

Norco, CA · (909) 478-2677

CA-CSLB 1091514 · A B +1General engineering contractorGeneral contractorElectrician
License activechecked Oct 24, 2026
CallDetails
05

Dk Pipeline

Norco, CA · (951) 260-0090

CA-CSLB 1057399 · AGeneral engineering contractor
License activechecked Oct 24, 2026
CallDetails
10

Dpd Construction

Riverside, CA · (951) 790-1395

CA-CSLB 914764 · A B +2General engineering contractorGeneral contractorFlooring contractor+1
License activechecked Oct 24, 2026
CallDetails
13

Duke Plumbing Inc

Upland, CA · (909) 981-8200

CA-CSLB 430513 · A C36General engineering contractorPlumber
License activechecked Oct 24, 2026
CallDetails
14

Dylan James Sauter

Upland, CA · (909) 322-7171

CA-CSLB 1141907 · A C51General engineering contractorSteel and welding contractor
License activechecked Oct 24, 2026
CallDetails
15

E E Electric Inc

Jurupa Valley, CA · (909) 829-7818

CA-CSLB 422685 · A B +2General engineering contractorGeneral contractorElectrician+1
License activechecked Oct 24, 2026
CallDetails
19

Eca Engineering

Riverside, CA · (661) 864-9360

CA-CSLB 1122538 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
CallDetails