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 41–60How results are ordered
42

Wavcomm Inc

Ontario, CA

US-GSA-SAM L6CBWM3FNYH7General engineering contractor
License activechecked Oct 23, 2026
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44

Yacko Construction Inc

Ontario, CA · (909) 702-5216

CA-CSLB 1012085 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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45

Yacko John

Ontario, CA · (909) 702-5216

CA-CSLB 764923 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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47

Armada Earthworks Inc

Rancho Cucamonga, CA · (909) 969-0182

CA-CSLB 1031638 · A C12General engineering contractorExcavation, grading and paving
License activechecked Oct 24, 2026
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48

B C M Group Inc

Rancho Cucamonga, CA · (909) 527-3820

CA-CSLB 968356 · A B +5General engineering contractorGeneral contractorConcrete contractor+2
License activechecked Oct 24, 2026
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49

Baldy Electric Inc

Rancho Cucamonga, CA · (909) 980-2024

CA-CSLB 318457 · A C10General engineering contractorElectrician
License activechecked Oct 24, 2026
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52

Blackgold Oil Spreading

Rancho Cucamonga, CA · (909) 563-8242

CA-CSLB 987495 · A C12 +1General engineering contractorExcavation, grading and pavingConcrete contractor
License activechecked Oct 24, 2026
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53

Blak Spike Rail Inc

Rancho Cucamonga, CA · (626) 826-2120

CA-CSLB 1159944 · AGeneral engineering contractor
License activechecked Oct 24, 2026
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56

Cjs Engineering Inc

Rancho Cucamonga, CA · (714) 323-5816

CA-CSLB 1152118 · AGeneral engineering contractor
License activechecked Oct 24, 2026
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57

Elco Construction

Redlands, CA · (909) 376-7557

CA-CSLB 729665 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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59

Ferreira Power West LLC

Rancho Cucamonga, CA · (909) 380-7377

CA-CSLB 1051285 · A C10 +1General engineering contractorElectricianSpecialty contractor
License activechecked Oct 24, 2026
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