Licensed General Building (B) contractors in Ontario, CA

The California Contractors State License Board (CSLB) lists 312 General Building (B) contractors in Ontario, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of August 11, 2026.

Showing 241–300 of 312 contractors

Rossetti Construction Company INC
Ontario, CA · CSLB #481575 · as of August 11, 2026
Active · clear
Rovac Builder
Ontario, CA · CSLB #1110101 · as of August 11, 2026
Active · clear
Richard Joe Saenz
Ontario, CA · CSLB #727122 · as of August 11, 2026
Active · clear
Sandoval Construction
Ontario, CA · CSLB #876715 · as of August 11, 2026
Active · clear
Santana Construction Enterprises
Ontario, CA · CSLB #848705 · as of August 11, 2026
Active · clear
Santoyo Construction
Ontario, CA · CSLB #1131018 · as of August 11, 2026
Active · clear
S C M Construction INC
Ontario, CA · CSLB #935736 · as of August 11, 2026
Active · clear
Los Serrano Construction
Ontario, CA · CSLB #1012653 · as of August 11, 2026
Active · clear
Shark General Building INC
Ontario, CA · CSLB #1130440 · as of August 11, 2026
Active · clear
Mardona Shenouda Construction Builder
Ontario, CA · CSLB #1095276 · as of August 11, 2026
Active · clear
Sierra Construction
Ontario, CA · CSLB #681123 · as of August 11, 2026
Active · clear
Simple Builds
Ontario, CA · CSLB #1144241 · as of August 11, 2026
Active · clear
Singularity Construction INC
Ontario, CA · CSLB #1105261 · as of August 11, 2026
Active · clear
Skylinecraft Construction INC
Ontario, CA · CSLB #1122803 · as of August 11, 2026
Active · clear
Skyline Services LLC
Ontario, CA · CSLB #1088918 · as of August 11, 2026
Active · clear
Solgar Construction INC
Ontario, CA · CSLB #1082852 · as of August 11, 2026
Active · clear
Solorio Construction
Ontario, CA · CSLB #917843 · as of August 11, 2026
Active · clear
Spec Construction & Development INC
Ontario, CA · CSLB #972188 · as of August 11, 2026
Active · clear
Spicer Construction
Ontario, CA · CSLB #662772 · as of August 11, 2026
Active · clear
Stanger Construction And Remodel
Ontario, CA · CSLB #1103331 · as of August 11, 2026
Active · clear
Struct-tech Builders
Ontario, CA · CSLB #568920 · as of August 11, 2026
Active · clear
Sunwest Builders Tenant Improvements INC
Ontario, CA · CSLB #1009363 · as of August 11, 2026
Active · clear
Super Mario Construction
Ontario, CA · CSLB #958569 · as of August 11, 2026
Active · clear
Trait Construction
Ontario, CA · CSLB #1028664 · as of August 11, 2026
Active · clear
TR Constructions LLC
Ontario, CA · CSLB #926469 · as of August 11, 2026
Active · clear
Tridon 2 Contractors
Ontario, CA · CSLB #1129917 · as of August 11, 2026
Active · clear
Trinity Framing
Ontario, CA · CSLB #1030427 · as of August 11, 2026
Active · clear
Ultimate Construction
Ontario, CA · CSLB #1098701 · as of August 11, 2026
Active · clear
Scorpion Remodeling Consulting DBA United Water Restoration
Ontario, CA · CSLB #1127537 · as of August 11, 2026
Active · clear
Unum Construction
Ontario, CA · CSLB #809385 · as of August 11, 2026
Active · clear
Uwing Construction INC
Ontario, CA · CSLB #1143733 · as of August 11, 2026
Active · clear
Vanedi Home Improvement INC
Ontario, CA · CSLB #1147022 · as of August 11, 2026
Active · clear
Varez Construction INC
Ontario, CA · CSLB #1138147 · as of August 11, 2026
Active · clear
Veltel Infrastructure Services LLC
Ontario, CA · CSLB #1049531 · as of August 11, 2026
Active · clear
VGC
Ontario, CA · CSLB #1138625 · as of August 11, 2026
Active · clear
Villa General Contracting
Ontario, CA · CSLB #1114540 · as of August 11, 2026
Active · clear
Vision Construction US INC
Ontario, CA · CSLB #1067022 · as of August 11, 2026
Active · clear
VLP Design Build
Ontario, CA · CSLB #1111387 · as of August 11, 2026
Active · clear
Wavcomm
Ontario, CA · CSLB #724434 · as of August 11, 2026
Active · clear
West Bay General Construction
Ontario, CA · CSLB #779015 · as of August 11, 2026
Active · clear
Westside Pro Builders
Ontario, CA · CSLB #1116368 · as of August 11, 2026
Active · clear
West United Builder
Ontario, CA · CSLB #1039373 · as of August 11, 2026
Active · clear
Wiekamp Construction INC
Ontario, CA · CSLB #1066913 · as of August 11, 2026
Active · clear
Wiskind Construction INC
Ontario, CA · CSLB #1137238 · as of August 11, 2026
Active · clear
Wolf Windows And Doors
Ontario, CA · CSLB #1157111 · as of August 11, 2026
Active · clear
Kyle Yang Construction
Ontario, CA · CSLB #1085591 · as of August 11, 2026
Active · clear
Y&D General Services
Ontario, CA · CSLB #1127476 · as of August 11, 2026
Active · clear
Yicun Construction
Ontario, CA · CSLB #1098350 · as of August 11, 2026
Active · clear
Ho Soo Yoo
Ontario, CA · CSLB #703553 · as of August 11, 2026
Active · clear
Young C Lee
Ontario, CA · CSLB #867519 · as of August 11, 2026
Active · clear
Z1 Construction
Ontario, CA · CSLB #1064551 · as of August 11, 2026
Active · clear
Pinze Zhang
Ontario, CA · CSLB #1087764 · as of August 11, 2026
Active · clear
Zhiyuan Li Construction
Ontario, CA · CSLB #1158107 · as of August 11, 2026
Active · clear
Zienix Property Services
Ontario, CA · CSLB #1142312 · as of August 11, 2026
Active · clear
Otto Ernesto Barrera
Ontario, CA · CSLB #540960 · as of August 11, 2026
Suspended · bond
Cardin Construction
Ontario, CA · CSLB #730241 · as of August 11, 2026
Suspended · bond
Diamond West Builders
Ontario, CA · CSLB #921003 · as of August 11, 2026
Suspended · bond
Er5 Construction INC
Ontario, CA · CSLB #1125259 · as of August 11, 2026
Suspended · bond
Fangwen Han
Ontario, CA · CSLB #1138190 · as of August 11, 2026
Suspended · bond
Golden Vast Construction INC
Ontario, CA · CSLB #1133809 · as of August 11, 2026
Suspended · bond

See all General Building (B) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of August 11, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.