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.
Ultimate Construction
General Contractors listing in Ontario, CA. License 1098701 read active on 2026-10-19.
United Water Restoration Group Of Ontario
General Contractors listing in Ontario, CA. License 1127537 read active on 2026-10-19.
Unum Construction
General Contractors listing in Ontario, CA. License 809385 read active on 2026-10-19.
Uwing Construction Inc
General Contractors listing in Ontario, CA. License 1143733 read active on 2026-10-19.
Vanedi Home Improvement Inc
General Contractors listing in Ontario, CA. License 1147022 read active on 2026-10-19.
Varez Construction Inc
General Contractors listing in Ontario, CA. License 1138147 read active on 2026-10-19.
Veltel Infrastructure Services Llc
General Contractors listing in Ontario, CA. License 1049531 read active on 2026-10-19.
Vgc
General Contractors listing in Ontario, CA. License 1138625 read active on 2026-10-19.
Villa General Contracting
General Contractors listing in Ontario, CA. License 1114540 read active on 2026-10-19.
Vision Construction Us Inc
General Contractors listing in Ontario, CA. License 1067022 read active on 2026-10-19.
Vlp Design Build
General Contractors listing in Ontario, CA. License 1111387 read active on 2026-10-19.
W M Construction Group Inc
General Contractors listing in Ontario, CA. License 1104199 read active on 2026-10-19.
Wavcomm
General Contractors listing in Ontario, CA. License 724434 read active on 2026-10-19.
West Bay General Construction
General Contractors listing in Ontario, CA. License 779015 read active on 2026-10-19.
West United Builder
General Contractors listing in Ontario, CA. License 1039373 read active on 2026-10-19.
Westside Pro Builders
General Contractors listing in Ontario, CA. License 1116368 read active on 2026-10-19.
Wiskind Construction Inc
General Contractors listing in Ontario, CA. License 1137238 read active on 2026-10-19.
Wka Group Inc
General Contractors listing in Ontario, CA. License 1134050 read active on 2026-10-19.
Wolf Windows And Doors
General Contractors listing in Ontario, CA. License 1157111 read active on 2026-10-19.
Y & D General Services
General Contractors listing in Ontario, CA. License 1127476 read active on 2026-10-19.
Yacko Construction Inc
General Contractors listing in Ontario, CA. License 1012085 read active on 2026-10-19.
Yacko John
General Contractors listing in Ontario, CA. License 764923 read active on 2026-10-19.
Yang Kyle Construction
General Contractors listing in Ontario, CA. License 1085591 read active on 2026-10-19.
Yicun Construction
General Contractors listing in Ontario, CA. License 1098350 read active on 2026-10-19.
Yoo Ho Soo
General Contractors listing in Ontario, CA. License 703553 read active on 2026-10-19.
Young C Lee
General Contractors listing in Ontario, CA. License 867519 read active on 2026-10-19.
Z1 Construction
General Contractors listing in Ontario, CA. License 1064551 read active on 2026-10-19.
Zhang Pinze
General Contractors listing in Ontario, CA. License 1087764 read active on 2026-10-19.
Zhiyuan Li Construction
General Contractors listing in Ontario, CA. License 1158107 read active on 2026-07-27.
Zienix Property Services
General Contractors listing in Ontario, CA. License 1142312 read active on 2026-10-19.
Esp Construction Solutions
General Contractors listing in Ontario, CA. License 1140163 read liability insurance suspension on 2026-10-19.
Hps Construction
General Contractors listing in Ontario, CA. License 1111105 read work compensation suspension on 2026-10-19.
Landeros Construction Group
General Contractors listing in Ontario, CA. License 770655 read work compensation suspension on 2026-10-19.
Matlock Design Build Inc
General Contractors listing in Ontario, CA. License 1031038 read work compensation suspension on 2026-10-19.
Simple Builds
General Contractors listing in Ontario, CA. License 1144241 read cit entity suspension on 2026-10-19.
Barrera Otto Ernesto
General Contractors listing in Ontario, CA. License 540960: not in the state's current license file; last read active on 2026-08-03.
Fixd Construction Company
General Contractors listing in Ontario, CA. License 976763: not in the state's current license file; last read active on 2026-08-03.
Garcia'S Construction
General Contractors listing in Ontario, CA. License 1018725: not in the state's current license file; last read active on 2026-09-28.
Incredibuilds Inc
General Contractors listing in Ontario, CA. License 1010448: not in the state's current license file; last read active on 2026-08-10.
Kismet Construction Company Inc
General Contractors listing in Ontario, CA. License 893342: not in the state's current license file; last read active on 2026-09-28.
Mc Ghee Construction Inc
General Contractors listing in Ontario, CA. License 884036: not in the state's current license file; last read active on 2026-09-28.
Palafox Louis Construction
General Contractors listing in Ontario, CA. License 1018409: not in the state's current license file; last read active on 2026-09-28.
Rossetti Construction Company Inc
General Contractors listing in Ontario, CA. License 481575: not in the state's current license file; last read active on 2026-09-28.
Seasons Painting & Construction Co
General Contractors listing in Ontario, CA. License 692214: not in the state's current license file; last read active on 2026-08-03.
Comparing two or three of these businesses? Read the questions that expose a real process plus the bid comparison worksheet before you sign anything.
Nearby general contractors hubs in California.
Los Angeles
3637 general contractors profiles currently published.
City hubSan Diego
2814 general contractors profiles currently published.
City hubSan Francisco
2378 general contractors profiles currently published.
City hubSan Jose
2313 general contractors profiles currently published.
City hubSacramento
1673 general contractors profiles currently published.
City hubBakersfield
996 general contractors profiles currently published.