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Contractor license records in Ontario, CA

918 records with Ontario as their locality of record in CSLB's records, as of November 3, 2026. Statuses print as the board records them; a record listed as suspended is not a current credential.

Source: California Contractors State License Board (CSLB) — records as of November 3, 2026. Records change; the board’s own CSLB License Check is the current source.

By classification in Ontario

General Building (338) · Electrical (137) · General Engineering (61) · Warm-Air Heating, Ventilating and Air-Conditioning (51) · Painting and Decorating (50) · Plumbing (49) · Low Voltage Systems (36) · Landscaping (34) · Concrete (32) · Flooring and Floor Covering (32) · Roofing (26) · Cabinet, Millwork and Finish Carpentry (22) · Doors, Gates and Activating Devices (22) · Glazing (21) · Drywall (20) · Ceramic and Mosaic Tile (18) · Synthetic Products (17) · Swimming Pool (16) · Masonry (16) · Structural Steel (13) · Fire Protection (12) · Refrigeration (12) · Building Moving/Demolition (12) · Pool and Spa Maintenance (11) · Window Coverings (9) · Sanitation System (9) · Prefabricated Equipment (9) · Lathing and Plastering (9) · Earthwork and Paving (8) · Metal Products (8) · Parking and Highway Improvement (7) · Sign (7) · Reinforcing Steel (7) · Machinery and Pumps (7) · Concrete-Related Services (7) · Hazardous Substance Removal Certification (6) · Ornamental Metal (6) · Fencing (5) · Service Station Equipment and Maintenance (5) · Sheet Metal (5) · Welding (5) · Framing and Rough Carpentry (4) · Construction Cleanup (4) · Tree Service (4) · Residential Remodeling (4) · Non-Electrical Sign Installation (3) · Solar (3) · Non-specialized (3) · Asbestos Certification (3) · Asbestos Abatement (3) · Tree and Palm (3) · Paperhanging (2) · Awnings (2) · Construction Zone Traffic Control (2) · Boiler, Hot-Water Heating and Steam Fitting (2) · Pipeline (2) · Insulation and Acoustical (2) · General Manufactured Housing (1) · Suspended Ceilings (1) · Well Drilling (1) · Lock and Security Equipment (1) · Hardware, Locks and Safes (1) · Safes and Vaults (1) · Siding and Decking (1) · Scaffolding (1)

• INLAND DESIGN BUILD CLEAR
  License 1005429 · expires October 31, 2027
• INNOVATION PAINTING INC CLEAR
  License 1051191 · expires March 31, 2027
• INNOVATIVE GLAZING SOLUTIONS CLEAR
  License 871285 · expires January 31, 2028
• INTEGRATED FLOORING INC CLEAR
  License 1047013 · expires November 30, 2026
• INTEGRITY MACHINERY & PUMPS CLEAR
  License 1119800 · expires April 30, 2028
• INTER-CITY ENERGY SYSTEMS INC CLEAR
  License 587709 · expires February 29, 2028
• INTERIOR EXPERTS GENERAL BUILDERS INC CLEAR
  License 638437 · expires May 31, 2028
• INTUMESCENT AND SYNTHETIC SPECIALTY CONTRACTOR CLEAR
  License 1089652 · expires April 30, 2028
• ISLAND CONSTRUCTION & MAINTENANCE CLEAR
  License 667042 · expires March 31, 2027
• ISLAND PETROLEUM BUILDERS INC CLEAR
  License 776846 · expires March 31, 2028
• J & B PATIOS COVERS CLEAR
  License 1061238 · expires December 31, 2027
• J & S STRIPING COMPANY INC CLEAR
  License 538211 · expires August 31, 2028
• J 1 PRO ROOFING CLEAR
  License 1084959 · expires December 31, 2027
• J B S STAIRS & MILLWORK CLEAR
  License 1123475 · expires July 31, 2028
• J D MAC INC CLEAR
  License 1026767 · expires May 31, 2027
• J ELIAS ENTERPRISES INC DBA J & J INDUSTRIAL SERVICES CLEAR
  License 814328 · expires November 30, 2028
• J L G CONSTRUCTION CLEAR
  License 683195 · expires December 31, 2027
• J M E PLUMBING INC CLEAR
  License 1083921 · expires November 30, 2027
• J M L ELECTRIC CLEAR
  License 539099 · expires June 30, 2027
• J M W COMMUNICATIONS INC CLEAR
  License 1074991 · expires April 30, 2027
• J P ADDISON CONSTRUCTION INC CLEAR
  License 1029562 · expires August 31, 2027
• J P LA BARGE CONSTRUCTION MANAGEMENT CLEAR
  License 760763 · expires August 31, 2027
• J P POOL SERVICES CLEAR
  License 925284 · expires November 30, 2026
• J R PAINTING & DESIGN CLEAR
  License 1005335 · expires July 31, 2027
• J S C GARDENS & LANDSCAPE CLEAR
  License 973284 · expires May 31, 2028
• J S PAINTING CO CLEAR
  License 741595 · expires April 30, 2028
• J&N MAINTENANCE SERVICES CLEAR
  License 1147841 · expires December 31, 2027
• JA CONSTRUCTION INC CLEAR
  License 1060402 · expires October 31, 2028
• JAKE SANDOVAL DBA CLEARWATER PLUMBING & CONSTRUCTION CLEAR
  License 980596 · expires January 31, 2027
• JAMES DEKOKER ELECTRICAL CONTRACTOR CLEAR
  License 300802 · expires April 30, 2028
• JAMES EAST ELECTRICAL INC CLEAR
  License 863933 · expires September 30, 2027
• JASON JANG CLEAR
  License 1035039 · expires January 31, 2028
• JAVIER TAVARES ORNELAS CLEAR
  License 1067792 · expires August 31, 2028
• JAY VEE ELECTRIC INC CLEAR
  License 788390 · expires May 31, 2028
• JB POWER DBA GENERATOR SUPERCENTER OF INLAND EMPIRE CLEAR
  License 1093940 · expires July 31, 2028
• JBM ELECTRIC CO CLEAR
  License 767304 · expires August 31, 2027
• JC CUSTOM SHEET METAL LLC CLEAR
  License 1144832 · expires October 31, 2027
• JCC CONSTRUCTION CLEAR
  License 1067037 · expires July 31, 2028
• JCSV BUILDERS INC CLEAR
  License 1134819 · expires March 31, 2027
• JD CONSTRUCTION ELECTRICAL SERVICES CLEAR
  License 1159183 · expires August 31, 2028
• JDK DEMO CLEAR
  License 1048561 · expires January 31, 2027
• JE HOME CONSTRUCTION CLEAR
  License 1078677 · expires July 31, 2027
• JEFFREY ANDREW RENNE CLEAR
  License 935581 · expires July 31, 2027
• JESSE MORALES & SONS CLEAR
  License 618714 · expires May 31, 2027
• JESSE'S AIR SYSTEMS A / C & HEATING CLEAR
  License 864645 · expires September 30, 2027
• JESSE'S IRON WORKS CLEAR
  License 792073 · expires March 31, 2027
• JEWEL CONSTRUCTION INC CLEAR
  License 915742 · expires April 30, 2028
• JEWELS CONSTRUCTION INC CLEAR
  License 770969 · expires November 30, 2027
• JFP CONSTRUCTION COMPANY INC CLEAR
  License 965462 · expires April 30, 2028
• JIMMY A GENERAL CONSTRUCTION INC Contr Bond Susp
  License 971256 · expires March 31, 2028

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