Licensed General Building (B) contractors in Ontario, CA

The California Contractors State License Board (CSLB) lists 311 General Building (B) contractors in Ontario, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

Showing 241–300 of 311 contractors

Rovac Builder
Ontario, CA · CSLB #1110101 · as of June 27, 2026
Active · clear
Richard Joe Saenz
Ontario, CA · CSLB #727122 · as of June 27, 2026
Active · clear
Sandoval Construction
Ontario, CA · CSLB #876715 · as of June 27, 2026
Active · clear
Santana Construction Enterprises
Ontario, CA · CSLB #848705 · as of June 27, 2026
Active · clear
Santoyo Construction
Ontario, CA · CSLB #1131018 · as of June 27, 2026
Active · clear
S C M Construction INC
Ontario, CA · CSLB #935736 · as of June 27, 2026
Active · clear
Los Serrano Construction
Ontario, CA · CSLB #1012653 · as of June 27, 2026
Active · clear
Shark General Building INC
Ontario, CA · CSLB #1130440 · as of June 27, 2026
Active · clear
Mardona Shenouda Construction Builder
Ontario, CA · CSLB #1095276 · as of June 27, 2026
Active · clear
Sierra Construction
Ontario, CA · CSLB #681123 · as of June 27, 2026
Active · clear
Simple Builds
Ontario, CA · CSLB #1144241 · as of June 27, 2026
Active · clear
Singularity Construction INC
Ontario, CA · CSLB #1105261 · as of June 27, 2026
Active · clear
Skylinecraft Construction INC
Ontario, CA · CSLB #1122803 · as of June 27, 2026
Active · clear
Skyline Services LLC
Ontario, CA · CSLB #1088918 · as of June 27, 2026
Active · clear
Solgar Construction INC
Ontario, CA · CSLB #1082852 · as of June 27, 2026
Active · clear
Solorio Construction
Ontario, CA · CSLB #917843 · as of June 27, 2026
Active · clear
Spec Construction & Development INC
Ontario, CA · CSLB #972188 · as of June 27, 2026
Active · clear
Spicer Construction
Ontario, CA · CSLB #662772 · as of June 27, 2026
Active · clear
Stanger Construction And Remodel
Ontario, CA · CSLB #1103331 · as of June 27, 2026
Active · clear
Struct-tech Builders
Ontario, CA · CSLB #568920 · as of June 27, 2026
Active · clear
Sunwest Builders Tenant Improvements INC
Ontario, CA · CSLB #1009363 · as of June 27, 2026
Active · clear
Super Mario Construction
Ontario, CA · CSLB #958569 · as of June 27, 2026
Active · clear
Trait Construction
Ontario, CA · CSLB #1028664 · as of June 27, 2026
Active · clear
TR Constructions LLC
Ontario, CA · CSLB #926469 · as of June 27, 2026
Active · clear
Tridon 2 Contractors
Ontario, CA · CSLB #1129917 · as of June 27, 2026
Active · clear
Trinity Framing
Ontario, CA · CSLB #1030427 · as of June 27, 2026
Active · clear
Ultimate Construction
Ontario, CA · CSLB #1098701 · as of June 27, 2026
Active · clear
Scorpion Remodeling Consulting DBA United Water Restoration
Ontario, CA · CSLB #1127537 · as of June 27, 2026
Active · clear
Unum Construction
Ontario, CA · CSLB #809385 · as of June 27, 2026
Active · clear
Uwing Construction INC
Ontario, CA · CSLB #1143733 · as of June 27, 2026
Active · clear
Vanedi Home Improvement INC
Ontario, CA · CSLB #1147022 · as of June 27, 2026
Active · clear
Varez Construction INC
Ontario, CA · CSLB #1138147 · as of June 27, 2026
Active · clear
Veltel Infrastructure Services LLC
Ontario, CA · CSLB #1049531 · as of June 27, 2026
Active · clear
VGC
Ontario, CA · CSLB #1138625 · as of June 27, 2026
Active · clear
Villa General Contracting
Ontario, CA · CSLB #1114540 · as of June 27, 2026
Active · clear
Vision Construction US INC
Ontario, CA · CSLB #1067022 · as of June 27, 2026
Active · clear
VLP Design Build
Ontario, CA · CSLB #1111387 · as of June 27, 2026
Active · clear
Wavcomm
Ontario, CA · CSLB #724434 · as of June 27, 2026
Active · clear
West Bay General Construction
Ontario, CA · CSLB #779015 · as of June 27, 2026
Active · clear
Westside Pro Builders
Ontario, CA · CSLB #1116368 · as of June 27, 2026
Active · clear
West United Builder
Ontario, CA · CSLB #1039373 · as of June 27, 2026
Active · clear
Wiekamp Construction INC
Ontario, CA · CSLB #1066913 · as of June 27, 2026
Active · clear
Wiskind Construction INC
Ontario, CA · CSLB #1137238 · as of June 27, 2026
Active · clear
Wolf Windows And Doors
Ontario, CA · CSLB #1157111 · as of June 27, 2026
Active · clear
Kyle Yang Construction
Ontario, CA · CSLB #1085591 · as of June 27, 2026
Active · clear
Y&D General Services
Ontario, CA · CSLB #1127476 · as of June 27, 2026
Active · clear
Yicun Construction
Ontario, CA · CSLB #1098350 · as of June 27, 2026
Active · clear
Ho Soo Yoo
Ontario, CA · CSLB #703553 · as of June 27, 2026
Active · clear
Young C Lee
Ontario, CA · CSLB #867519 · as of June 27, 2026
Active · clear
Z1 Construction
Ontario, CA · CSLB #1064551 · as of June 27, 2026
Active · clear
Pinze Zhang
Ontario, CA · CSLB #1087764 · as of June 27, 2026
Active · clear
Zienix Property Services
Ontario, CA · CSLB #1142312 · as of June 27, 2026
Active · clear
Cardin Construction
Ontario, CA · CSLB #730241 · as of June 27, 2026
Suspended · bond
Diamond West Builders
Ontario, CA · CSLB #921003 · as of June 27, 2026
Suspended · bond
Golden Vast Construction INC
Ontario, CA · CSLB #1133809 · as of June 27, 2026
Suspended · bond
Groundbreaking Design Building
Ontario, CA · CSLB #1087605 · as of June 27, 2026
Suspended · bond
Jesse's Iron Works
Ontario, CA · CSLB #792073 · as of June 27, 2026
Suspended · bond
Meta Group Builder
Ontario, CA · CSLB #1108241 · as of June 27, 2026
Suspended · bond
Quality Construction & Repair Services
Ontario, CA · CSLB #962423 · as of June 27, 2026
Suspended · bond
Simple Restoration INC
Ontario, CA · CSLB #1066954 · as of June 27, 2026
Suspended · bond

See all General Building (B) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.