Contractor SearchGeneral Contractors in Ontario, California.
344 general contractors profiles sourced from public licensing and registration records. Check source status, then use the available direct contact details.
Ontario, CA has 344 general contractors listings in the directory drawn from California CSLB (general building). 330 showed an active license the last time this site read their source, while 5 show an expired, inactive, or suspended status — worth checking before you request a bid; 9 licenses are no longer in the state's current license file. Each profile links the authoritative public source and shows newer recorded status changes when available.
Current public general contractors listings in Ontario.
Listings whose most recent source read showed an active license.
Profiles already claimed and verified by the business.
1 public source feed this city hub.
8A Construction Services Inc
General Contractors listing in Ontario, CA. License 925552 read active on 2026-10-19.
A - Industrial Design / Build
General Contractors listing in Ontario, CA. License 969373 read active on 2026-10-19.
A G Construction
General Contractors listing in Ontario, CA. License 793245 read active on 2026-10-19.
A I C Interior Inc
General Contractors listing in Ontario, CA. License 806562 read active on 2026-10-19.
A N D A
General Contractors listing in Ontario, CA. License 1032575 read active on 2026-10-19.
A T S Construction
General Contractors listing in Ontario, CA. License 807837 read active on 2026-10-19.
A2Z Builders Group Inc
General Contractors listing in Ontario, CA. License 1150914 read active on 2026-10-19.
Aam&Jianan Llc
General Contractors listing in Ontario, CA. License 1132911 read active on 2026-07-15.
Abl Contracting Inc
General Contractors listing in Ontario, CA. License 1126537 read active on 2026-10-19.
Aboubakare Ansary
General Contractors listing in Ontario, CA. License 1042235 read active on 2026-10-19.
Aboveground Solutions Inc
General Contractors listing in Ontario, CA. License 1106979 read active on 2026-10-19.
Ace Engineering Inc
General Contractors listing in Ontario, CA. License 613320 read active on 2026-10-19.
Aces Construction
General Contractors listing in Ontario, CA. License 1083500 read active on 2026-10-19.
Action Restoration
General Contractors listing in Ontario, CA. License 798665 read active on 2026-10-19.
Adams John I Construction
General Contractors listing in Ontario, CA. License 1011138 read active on 2026-10-19.
Advance Construction
General Contractors listing in Ontario, CA. License 842289 read active on 2026-10-19.
Advanced Technology Inc
General Contractors listing in Ontario, CA. License 1064615 read active on 2026-10-19.
Ag Building And Remodeling Inc
General Contractors listing in Ontario, CA. License 1153779 read active on 2026-10-19.
Ahome Construction Inc
General Contractors listing in Ontario, CA. License 1066852 read active on 2026-10-19.
Al Construction & Design
General Contractors listing in Ontario, CA. License 1161927 read active on 2026-10-19.
Alberto Garcia Contractor
General Contractors listing in Ontario, CA. License 624340 read active on 2026-10-19.
Aljohn Builders
General Contractors listing in Ontario, CA. License 616383 read active on 2026-10-19.
Alliance Communication Services Inc
General Contractors listing in Ontario, CA. License 746796 read active on 2026-10-19.
Allstar Adu & General Builder
General Contractors listing in Ontario, CA. License 1009628 read active on 2026-10-19.
Ambak Construction
General Contractors listing in Ontario, CA. License 923086 read active on 2026-10-19.
American General Builders
General Contractors listing in Ontario, CA. License 1114159 read active on 2026-10-19.
Amins Construction Inc
General Contractors listing in Ontario, CA. License 1149094 read active on 2026-10-19.
Anton Construction
General Contractors listing in Ontario, CA. License 461541 read active on 2026-10-19.
Artisan Construction
General Contractors listing in Ontario, CA. License 1087835 read active on 2026-10-19.
Arvizu Christopher
General Contractors listing in Ontario, CA. License 1043693 read active on 2026-10-19.
Ashka Design & Construction
General Contractors listing in Ontario, CA. License 1145356 read active on 2026-10-19.
B Z B Construction Company
General Contractors listing in Ontario, CA. License 599680 read active on 2026-10-19.
Balto Development Inc
General Contractors listing in Ontario, CA. License 1067561 read active on 2026-10-19.
Barberi Ernesto
General Contractors listing in Ontario, CA. License 959795 read active on 2026-10-19.
Baywood Construction Co
General Contractors listing in Ontario, CA. License 415687 read active on 2026-10-19.
Bc7 Construction Inc
General Contractors listing in Ontario, CA. License 1049615 read active on 2026-10-19.
Bcbc Construction
General Contractors listing in Ontario, CA. License 926682 read active on 2026-10-19.
Best Choice Building & Developing
General Contractors listing in Ontario, CA. License 1084808 read active on 2026-10-19.
Bgw Building Products Inc
General Contractors listing in Ontario, CA. License 1156225 read active on 2026-10-19.
Blue Haven Pools
General Contractors listing in Ontario, CA. License 816057 read active on 2026-10-19.
Bonilla Construction
General Contractors listing in Ontario, CA. License 919777 read active on 2026-10-19.
Brilliant Building Group
General Contractors listing in Ontario, CA. License 1136246 read active on 2026-10-19.
Buena Vista Contractors
General Contractors listing in Ontario, CA. License 1112707 read active on 2026-10-19.
C B Home Construction
General Contractors listing in Ontario, CA. License 961219 read active on 2026-10-19.
C B Home Construction Inc
General Contractors listing in Ontario, CA. License 1069527 read active on 2026-10-19.
C M Construction General Contractors Inc
General Contractors listing in Ontario, CA. License 677379 read active on 2026-10-19.
Cadre Construction Llc
General Contractors listing in Ontario, CA. License 1148827 read active on 2026-10-19.
Calpoint Construction Inc
General Contractors listing in Ontario, CA. License 1132890 read active on 2026-10-19.
Cano Architecture Concrete Repair
General Contractors listing in Ontario, CA. License 414320 read active on 2026-10-19.
Cap Angeles Construction Inc
General Contractors listing in Ontario, CA. License 1115382 read active on 2026-10-19.
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