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.
Prime Renovate Inc
General Contractors listing in Ontario, CA. License 1076129 read active on 2026-10-19.
Project Countertops Company Inc
General Contractors listing in Ontario, CA. License 1021347 read active on 2026-10-19.
Project X Developer Inc
General Contractors listing in Ontario, CA. License 1106298 read active on 2026-10-19.
Property Builders Concepts & Maintenance Inc
General Contractors listing in Ontario, CA. License 967277 read active on 2026-10-19.
Property Management Service
General Contractors listing in Ontario, CA. License 968317 read active on 2026-10-19.
Q A T General Construction
General Contractors listing in Ontario, CA. License 1085728 read active on 2026-10-19.
R C A Construction Clean Up Inc
General Contractors listing in Ontario, CA. License 996848 read active on 2026-10-19.
R J P General Contracting
General Contractors listing in Ontario, CA. License 659596 read active on 2026-10-19.
R3 Painting
General Contractors listing in Ontario, CA. License 757555 read active on 2026-10-19.
Ramirez Construction Services Inc
General Contractors listing in Ontario, CA. License 1017026 read active on 2026-10-19.
Rancho Construction Specialties
General Contractors listing in Ontario, CA. License 1113850 read active on 2026-10-19.
Red & Purple Inc
General Contractors listing in Ontario, CA. License 1092661 read active on 2026-10-19.
Rema Builders
General Contractors listing in Ontario, CA. License 1142912 read active on 2026-10-19.
Rico Inc
General Contractors listing in Ontario, CA. License 831227 read active on 2026-10-19.
Riggio Construction Inc
General Contractors listing in Ontario, CA. License 806241 read active on 2026-10-19.
Right Call Services Inc
General Contractors listing in Ontario, CA. License 1151470 read active on 2026-10-19.
Rightmer Johnnie
General Contractors listing in Ontario, CA. License 929338 read active on 2026-10-19.
Rockwall Construction Company
General Contractors listing in Ontario, CA. License 777138 read active on 2026-10-19.
Romero Victor
General Contractors listing in Ontario, CA. License 911371 read active on 2026-10-19.
Rovac Builder
General Contractors listing in Ontario, CA. License 1110101 read active on 2026-10-19.
S C M Construction Inc
General Contractors listing in Ontario, CA. License 935736 read active on 2026-10-19.
Saenz Richard Joe
General Contractors listing in Ontario, CA. License 727122 read active on 2026-10-19.
Sandoval Construction
General Contractors listing in Ontario, CA. License 876715 read active on 2026-10-19.
Santana Construction Enterprises
General Contractors listing in Ontario, CA. License 848705 read active on 2026-10-19.
Santoyo Construction
General Contractors listing in Ontario, CA. License 1131018 read active on 2026-10-19.
Serrano Los Construction
General Contractors listing in Ontario, CA. License 1012653 read active on 2026-10-19.
Shark General Building Inc
General Contractors listing in Ontario, CA. License 1130440 read active on 2026-10-19.
Shenouda Mardona Construction Builder
General Contractors listing in Ontario, CA. License 1095276 read active on 2026-10-19.
Sierra Construction
General Contractors listing in Ontario, CA. License 681123 read active on 2026-10-19.
Simple Restoration Inc
General Contractors listing in Ontario, CA. License 1066954 read active on 2026-10-19.
Singularity Construction Inc
General Contractors listing in Ontario, CA. License 1105261 read active on 2026-10-19.
Sitelogiq Inc
General Contractors listing in Ontario, CA. License 1054171 read active on 2026-10-19.
Skyline Services Llc
General Contractors listing in Ontario, CA. License 1088918 read active on 2026-10-19.
Skylinecraft Construction Inc
General Contractors listing in Ontario, CA. License 1122803 read active on 2026-10-19.
Solgar Construction Inc
General Contractors listing in Ontario, CA. License 1082852 read active on 2026-10-19.
Solid Integrity Construction
General Contractors listing in Ontario, CA. License 1161433 read active on 2026-10-19.
Solorio Construction
General Contractors listing in Ontario, CA. License 917843 read active on 2026-10-19.
Spec Construction & Development Inc
General Contractors listing in Ontario, CA. License 972188 read active on 2026-10-19.
Spec Construction Co Inc
General Contractors listing in Ontario, CA. License 419626 read active on 2026-10-19.
Spicer Construction
General Contractors listing in Ontario, CA. License 662772 read active on 2026-10-19.
Stanger Construction And Remodel
General Contractors listing in Ontario, CA. License 1103331 read active on 2026-10-19.
Struct-Tech Builders
General Contractors listing in Ontario, CA. License 568920 read active on 2026-10-19.
Sunpride Construction Inc
General Contractors listing in Ontario, CA. License 1162476 read active on 2026-10-19.
Sunwest Builders Tenant Improvements Inc
General Contractors listing in Ontario, CA. License 1009363 read active on 2026-10-19.
Super Mario Construction
General Contractors listing in Ontario, CA. License 958569 read active on 2026-10-19.
Theilacker Rudolf Carl Contractor
General Contractors listing in Ontario, CA. License 279711 read active on 2026-10-19.
Tr Constructions Llc
General Contractors listing in Ontario, CA. License 926469 read active on 2026-10-19.
Trait Construction
General Contractors listing in Ontario, CA. License 1028664 read active on 2026-10-19.
Tridon 2 Contractors
General Contractors listing in Ontario, CA. License 1129917 read active on 2026-10-19.
Trinity Framing
General Contractors listing in Ontario, CA. License 1030427 read active on 2026-10-19.
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