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 October 6, 2026.

Showing 1–60 of 311 contractors

A2z Builders Group INC
Ontario, CA · CSLB #1150914 · as of October 6, 2026
Active · clear
Aam&jianan LLC
Ontario, CA · CSLB #1132911 · as of October 6, 2026
Active · clear
Ansary Aboubakare
Ontario, CA · CSLB #1042235 · as of October 6, 2026
Active · clear
Aboveground Solutions INC
Ontario, CA · CSLB #1106979 · as of October 6, 2026
Active · clear
Aces Construction
Ontario, CA · CSLB #1083500 · as of October 6, 2026
Active · clear
Action Restoration
Ontario, CA · CSLB #798665 · as of October 6, 2026
Active · clear
Classic Kitchens Etc INC DBA John I Adams Construction
Ontario, CA · CSLB #1011138 · as of October 6, 2026
Active · clear
Advance Construction
Ontario, CA · CSLB #842289 · as of October 6, 2026
Active · clear
Ag Building And Remodeling INC
Ontario, CA · CSLB #1153779 · as of October 6, 2026
Active · clear
Alberto Garcia Construction Services INC DBA A G Construction
Ontario, CA · CSLB #793245 · as of October 6, 2026
Active · clear
Ahome Construction INC
Ontario, CA · CSLB #1066852 · as of October 6, 2026
Active · clear
A - Industrial Design / Build
Ontario, CA · CSLB #969373 · as of October 6, 2026
Active · clear
Alberto Garcia Contractor
Ontario, CA · CSLB #624340 · as of October 6, 2026
Active · clear
Al Construction & Design
Ontario, CA · CSLB #1161927 · as of October 6, 2026
Active · clear
Aljohn Builders
Ontario, CA · CSLB #616383 · as of October 6, 2026
Active · clear
Alliance Communication Services INC
Ontario, CA · CSLB #746796 · as of October 6, 2026
Active · clear
Allstar Adu & General Builder
Ontario, CA · CSLB #1009628 · as of October 6, 2026
Active · clear
Ambak Construction
Ontario, CA · CSLB #923086 · as of October 6, 2026
Active · clear
American General Builders
Ontario, CA · CSLB #1114159 · as of October 6, 2026
Active · clear
Amins Construction INC
Ontario, CA · CSLB #1149094 · as of October 6, 2026
Active · clear
Anda
Ontario, CA · CSLB #1032575 · as of October 6, 2026
Active · clear
Artisan Construction
Ontario, CA · CSLB #1087835 · as of October 6, 2026
Active · clear
Ashka Design & Construction
Ontario, CA · CSLB #1145356 · as of October 6, 2026
Active · clear
A T S Construction
Ontario, CA · CSLB #807837 · as of October 6, 2026
Active · clear
Balto Development INC
Ontario, CA · CSLB #1067561 · as of October 6, 2026
Active · clear
Ernesto Barberi
Ontario, CA · CSLB #959795 · as of October 6, 2026
Active · clear
Baywood Construction CO
Ontario, CA · CSLB #415687 · as of October 6, 2026
Active · clear
BC7 Construction INC
Ontario, CA · CSLB #1049615 · as of October 6, 2026
Active · clear
Bcbc Construction
Ontario, CA · CSLB #926682 · as of October 6, 2026
Active · clear
Best Choice Building & Developing
Ontario, CA · CSLB #1084808 · as of October 6, 2026
Active · clear
BGW Building Products INC
Ontario, CA · CSLB #1156225 · as of October 6, 2026
Active · clear
Blue Haven Pools
Ontario, CA · CSLB #816057 · as of October 6, 2026
Active · open complaint
Bonilla Construction
Ontario, CA · CSLB #919777 · as of October 6, 2026
Active · clear
Brilliant Building Group
Ontario, CA · CSLB #1136246 · as of October 6, 2026
Active · clear
Buena Vista Contractors
Ontario, CA · CSLB #1112707 · as of October 6, 2026
Active · clear
B Z B Construction Company
Ontario, CA · CSLB #599680 · as of October 6, 2026
Active · clear
Cadre Construction LLC
Ontario, CA · CSLB #1148827 · as of October 6, 2026
Active · clear
Calpoint Construction INC
Ontario, CA · CSLB #1132890 · as of October 6, 2026
Active · clear
Cano Architecture Concrete Repair
Ontario, CA · CSLB #414320 · as of October 6, 2026
Active · clear
Cap Angeles Construction INC
Ontario, CA · CSLB #1115382 · as of October 6, 2026
Active · clear
Amilcar M Castillo
Ontario, CA · CSLB #711675 · as of October 6, 2026
Active · clear
Castle Construction And Development INC
Ontario, CA · CSLB #1149616 · as of October 6, 2026
Active · clear
C B Home Construction
Ontario, CA · CSLB #961219 · as of October 6, 2026
Active · clear
C B Home Construction INC
Ontario, CA · CSLB #1069527 · as of October 6, 2026
Active · clear
CBX Construction INC
Ontario, CA · CSLB #1132477 · as of October 6, 2026
Active · clear
CDN Construction
Ontario, CA · CSLB #1109836 · as of October 6, 2026
Active · clear
Chava's Marble & Tile
Ontario, CA · CSLB #692159 · as of October 6, 2026
Active · clear
CJ Construction Services
Ontario, CA · CSLB #1132772 · as of October 6, 2026
Active · clear
Clean Power Construction
Ontario, CA · CSLB #1041123 · as of October 6, 2026
Active · clear
Jake Sandoval DBA Clearwater Plumbing & Construction
Ontario, CA · CSLB #980596 · as of October 6, 2026
Active · clear
C M Construction General Contractors INC
Ontario, CA · CSLB #677379 · as of October 6, 2026
Active · clear
Comtract Communications INC
Ontario, CA · CSLB #598482 · as of October 6, 2026
Active · clear
Construx West INC
Ontario, CA · CSLB #1146772 · as of October 6, 2026
Active · clear
Control Systems
Ontario, CA · CSLB #1099963 · as of October 6, 2026
Active · clear
Correa Construction
Ontario, CA · CSLB #482342 · as of October 6, 2026
Active · clear
Cox Commerical & Industrial INC
Ontario, CA · CSLB #868078 · as of October 6, 2026
Active · clear
CPL Construction INC
Ontario, CA · CSLB #1130846 · as of October 6, 2026
Active · clear
Steve Crossman
Ontario, CA · CSLB #362535 · as of October 6, 2026
Active · clear
Crown Construction Group INC
Ontario, CA · CSLB #1143986 · as of October 6, 2026
Active · clear
Custom Carpentry
Ontario, CA · CSLB #826799 · as of October 6, 2026
Active · clear

See all General Building (B) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.