NAICS 237990 · Other Heavy and Civil Engineering Construction

General engineering contractors in Walnut, CA

25 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
02

Gwas

Pomona, CA · (909) 623-8226

CA-CSLB 955608 · C27 C31 +3LandscaperGeneral engineering contractorTree service
License activechecked Oct 24, 2026
CallDetails
06

Harbor Environmental Group Inc

Brea, CA · (714) 257-9680

CA-CSLB 936557 · A ASB +4General engineering contractorAsbestos and hazardous materials abatementGeneral contractor+1
License activechecked Oct 24, 2026
CallDetails
08

Henkels & Mccoy West LLC

Pomona, CA · (909) 517-3011

CA-CSLB 1100318 · A C10 +1General engineering contractorElectricianSpecialty contractor
License activechecked Oct 24, 2026
CallDetails
11

Horizon Construction

Chino Hills, CA · (909) 548-1218

CA-CSLB 823663 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
CallDetails
12

Icr Service Inc

Brea, CA

US-GSA-SAM XXQENNL77X71General engineering contractor
License activechecked Oct 23, 2026
Details
15

Intren West LLC

Pomona, CA · (909) 517-3011

CA-CSLB 1103190 · A C10 +1General engineering contractorElectricianSpecialty contractor
License activechecked Oct 24, 2026
CallDetails
16

Issaco Builders

Brea, CA · (714) 330-0859

CA-CSLB 853232 · A BGeneral engineering contractorGeneral contractor
License activechecked Oct 24, 2026
CallDetails
17

J D C

Baldwin Park, CA · (626) 480-8900

CA-CSLB 737593 · A C36 +1General engineering contractorPlumberConcrete contractor
License activechecked Oct 24, 2026
CallDetails
18

J F Engineering Inc

Pomona, CA · (909) 721-7698

CA-CSLB 873691 · A B +1General engineering contractorGeneral contractorExcavation, grading and paving
License activechecked Oct 24, 2026
CallDetails
19

J G Plumbing & Rooter Inc

Glendora, CA · (626) 771-5217

CA-CSLB 1087284 · A B +1General engineering contractorGeneral contractorPlumber
License activechecked Oct 24, 2026
CallDetails