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 241–260How results are ordered
242

Fore Contractors Inc

Norco, CA · (951) 272-1322

CA-CSLB 1023690 · A B +1General engineering contractorGeneral contractorConcrete contractor
License activechecked Oct 24, 2026
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244

Fryman Management Inc

Chino, CA · (949) 481-5211

CA-CSLB 1007017 · C31 D42General engineering contractorSign contractor
License activechecked Oct 24, 2026
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245

Fuel Equipment Services Inc

Montclair, CA · (800) 581-3710

CA-CSLB 1007851 · A C10 +2General engineering contractorElectricianSpecialty contractor+1
License activechecked Oct 24, 2026
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246

Fuel Pros Inc

Chino, CA · (909) 614-1379

CA-CSLB 269354 · A B +2General engineering contractorGeneral contractorPlumber+1
License activechecked Oct 24, 2026
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247

Fuel Serv

Montclair, CA · (909) 680-9102

CA-CSLB 986361 · A C10 +2General engineering contractorElectricianSpecialty contractor+1
License activechecked Oct 24, 2026
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248

Fuelex

Upland, CA

US-GSA-SAM C5XAPBZRPBL3General engineering contractor
License activechecked Oct 23, 2026
Details
251

Gardner Jack Jr

Norco, CA · (951) 212-9408

CA-CSLB 470911 · A B +2General engineering contractorGeneral contractorFire sprinkler contractor+1
License activechecked Oct 24, 2026
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253

Gdm Inc, Na

Chino, CA

US-GSA-SAM GE4JGKRNR945General engineering contractor
License activechecked Oct 23, 2026
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255

Ghw Design & Build Inc

Upland, CA · (626) 318-2828

CA-CSLB 995733 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
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258

Gott W D Construction Co

Upland, CA · (909) 982-8951

CA-CSLB 279688 · A B +1General engineering contractorGeneral contractorConcrete contractor
License activechecked Oct 24, 2026
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