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

Goldstar Traffic

Rancho Cucamonga, CA · (909) 243-2212

CA-CSLB 1145607 · C31General engineering contractor
License activechecked Oct 24, 2026
CallDetails
02

Goss Construction Co Inc

Rancho Cucamonga, CA · (909) 980-4411

CA-CSLB 378377 · A B +3General engineering contractorGeneral contractorConcrete contractor+1
License activechecked Oct 24, 2026
CallDetails
05

H 2 M Construction Inc

Rancho Cucamonga, CA · (626) 343-8866

CA-CSLB 1016007 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
CallDetails
07

Holguin & Holguin Enterprises Inc

Rancho Cucamonga, CA · (909) 224-1690

CA-CSLB 1058650 · A B +1General engineering contractorGeneral contractorExcavation, grading and paving
License activechecked Oct 24, 2026
CallDetails
09

Lion Construction

Rancho Cucamonga, CA · (909) 657-3618

CA-CSLB 888802 · A C12General engineering contractorExcavation, grading and paving
License activechecked Oct 24, 2026
CallDetails
12

Mehas Construction Inc

Rancho Cucamonga, CA · (909) 980-0847

CA-CSLB 585432 · A B +1General engineering contractorGeneral contractorElectrician
License activechecked Oct 24, 2026
CallDetails
15

Nile Ma Construction

Rancho Cucamonga, CA · (909) 297-4946

CA-CSLB 1093536 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
CallDetails