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.
Castillo Amilcar M
General Contractors listing in Ontario, CA. License 711675 read active on 2026-10-19.
Castle Construction And Development Inc
General Contractors listing in Ontario, CA. License 1149616 read active on 2026-10-19.
Cbx Construction Inc
General Contractors listing in Ontario, CA. License 1132477 read active on 2026-10-19.
Cdn Construction
General Contractors listing in Ontario, CA. License 1109836 read active on 2026-10-19.
Chava'S Marble & Tile
General Contractors listing in Ontario, CA. License 692159 read active on 2026-10-19.
Choice Builder Solutions Llc
General Contractors listing in Ontario, CA. License 1032593 read active on 2026-10-19.
Cj Construction Services
General Contractors listing in Ontario, CA. License 1132772 read active on 2026-10-19.
Clean Power Construction
General Contractors listing in Ontario, CA. License 1041123 read active on 2026-07-27.
Clearwater Plumbing & Construction
General Contractors listing in Ontario, CA. License 980596 read active on 2026-10-19.
Commercial Concrete Constructors Inc
General Contractors listing in Ontario, CA. License 858888 read active on 2026-10-19.
Comtract Communications Inc
General Contractors listing in Ontario, CA. License 598482 read active on 2026-10-19.
Constru One Inc
General Contractors listing in Ontario, CA. License 972427 read active on 2026-10-19.
Construx West Inc
General Contractors listing in Ontario, CA. License 1146772 read active on 2026-10-19.
Control Systems
General Contractors listing in Ontario, CA. License 1099963 read active on 2026-10-19.
Correa Construction
General Contractors listing in Ontario, CA. License 482342 read active on 2026-10-19.
Cox Commerical & Industrial Inc
General Contractors listing in Ontario, CA. License 868078 read active on 2026-10-19.
Cpl Construction Inc
General Contractors listing in Ontario, CA. License 1130846 read active on 2026-10-19.
Crossman Steve
General Contractors listing in Ontario, CA. License 362535 read active on 2026-10-19.
Crown Construction Group Inc
General Contractors listing in Ontario, CA. License 1143986 read active on 2026-10-19.
Custom Carpentry
General Contractors listing in Ontario, CA. License 826799 read active on 2026-07-27.
Custom Construction
General Contractors listing in Ontario, CA. License 630203 read active on 2026-10-19.
Custom Homes Construction
General Contractors listing in Ontario, CA. License 1045173 read active on 2026-10-19.
D & D Contractors Inc
General Contractors listing in Ontario, CA. License 966076 read active on 2026-10-19.
D G I Structures Inc
General Contractors listing in Ontario, CA. License 994472 read active on 2026-10-19.
David Leung
General Contractors listing in Ontario, CA. License 731215 read active on 2026-10-19.
Daylight Solar Energy Corp
General Contractors listing in Ontario, CA. License 903293 read active on 2026-10-19.
Db Construction Inc
General Contractors listing in Ontario, CA. License 1039670 read active on 2026-10-19.
Dc2 Construction
General Contractors listing in Ontario, CA. License 763460 read active on 2026-10-19.
Dchristjan Fine Cabinetry
General Contractors listing in Ontario, CA. License 776103 read active on 2026-10-19.
Ddl Construction Inc
General Contractors listing in Ontario, CA. License 1142403 read active on 2026-10-19.
Ddpt Inc
General Contractors listing in Ontario, CA. License 1142270 read active on 2026-10-19.
Design Windows & Doors Inc
General Contractors listing in Ontario, CA. License 912367 read active on 2026-10-19.
Designer Works
General Contractors listing in Ontario, CA. License 986451 read active on 2026-10-19.
Devine John Fitzgerald
General Contractors listing in Ontario, CA. License 934292 read active on 2026-10-19.
Devine Looks Home Design & Construction
General Contractors listing in Ontario, CA. License 1074899 read active on 2026-10-19.
Dh Remodel & Construction Inc
General Contractors listing in Ontario, CA. License 808571 read active on 2026-10-19.
Di Shao Construction
General Contractors listing in Ontario, CA. License 1153127 read active on 2026-10-19.
Diamond Air Services Inc
General Contractors listing in Ontario, CA. License 1047483 read active on 2026-10-19.
Diamond West Builders
General Contractors listing in Ontario, CA. License 921003 read active on 2026-10-19.
Digital Technologies Inc
General Contractors listing in Ontario, CA. License 894551 read active on 2026-10-19.
Doja Inc
General Contractors listing in Ontario, CA. License 597764 read active on 2026-10-19.
Dominguez Jod
General Contractors listing in Ontario, CA. License 1084844 read active on 2026-10-19.
Dove Construction
General Contractors listing in Ontario, CA. License 890352 read active on 2026-10-19.
Draper Properties
General Contractors listing in Ontario, CA. License 833028 read active on 2026-10-19.
Duo Cap Construction Inc
General Contractors listing in Ontario, CA. License 1131376 read active on 2026-10-19.
Dvg Costruction
General Contractors listing in Ontario, CA. License 1133506 read active on 2026-10-19.
Earth & Structural Development Llc
General Contractors listing in Ontario, CA. License 1159724 read active on 2026-10-19.
East Los Angeles Community Union The
General Contractors listing in Ontario, CA. License 622252 read active on 2026-10-19.
Edginton George Aldred
General Contractors listing in Ontario, CA. License 784411 read active on 2026-10-19.
Elite Construction
General Contractors listing in Ontario, CA. License 841247 read active on 2026-10-19.
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