Home / California / Ontario

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)

• RAIDEN ELECTRIC CLEAR
  License 1118259 · expires March 31, 2028
• RAMIREZ CONSTRUCTION SERVICES INC CLEAR
  License 1017026 · expires June 30, 2027
• RANCHO CONSTRUCTION SPECIALTIES CLEAR
  License 1113850 · expires December 31, 2027
• RANCHO LOMA FLOORS INC CLEAR
  License 562032 · expires September 30, 2028
• RAZE DEMOLITION SERVICES CLEAR
  License 1078123 · expires July 31, 2027
• RC TREE CARE CLEAR
  License 1136616 · expires April 30, 2027
• RDM ELECTRIC CO INC CLEAR
  License 539194 · expires August 31, 2028
• RED & PURPLE INC CLEAR
  License 1092661 · expires June 30, 2028
• REED'S PLUMBING CLEAR
  License 788531 · expires September 30, 2028
• REGAL INDUSTRIES INC CLEAR
  License 740801 · expires September 30, 2027
• RELIANT COOLING AND POWER LLC CLEAR
  License 1156506 · expires June 30, 2028
• REMA BUILDERS CLEAR
  License 1142912 · expires September 30, 2027
• RESOURCE ONE LOW VOLTAGE SECURITY INC CLEAR
  License 1037327 · expires March 31, 2028
• RF DRYWALL INC CLEAR
  License 1101152 · expires February 28, 2027
• RICCARDI FLOOR COVERING INC CLEAR
  License 929568 · expires March 31, 2027
• RICHARD JOE SAENZ CLEAR
  License 727122 · expires September 30, 2028
• RICO INC CLEAR
  License 831227 · expires January 31, 2028
• RICO PAINTING CLEAR
  License 750696 · expires September 30, 2028
• RIGGIO CONSTRUCTION INC CLEAR
  License 806241 · expires January 31, 2027
• RIGHT CALL SERVICES INC CLEAR
  License 1151470 · expires March 31, 2028
• RIGOBERTO CARBAJAL DBA PERFECT TOUCH DRYWALL CLEAR
  License 843628 · expires July 31, 2028
• RIOS LANDSCAPING CLEAR
  License 1055486 · expires July 31, 2027
• RIPTIDE INDUSTRIES CLEAR
  License 1056742 · expires August 31, 2027
• RISE ABOVE LANDSCAPE INC CLEAR
  License 1136557 · expires April 30, 2027
• ROADFIX INC CLEAR
  License 840367 · expires February 29, 2028
• ROBERT ALAN CONSTRUCTION INC CLEAR
  License 1022004 · expires December 31, 2028
• ROBERT EDWARD TEMPLE CLEAR
  License 519817 · expires October 31, 2027
• ROBERT HOYLE CLEAR
  License 873164 · expires February 29, 2028
• ROCKWALL CONSTRUCTION COMPANY CLEAR
  License 777138 · expires April 30, 2028
• RODNEY GLENN WOLCOTT CLEAR
  License 730955 · expires January 31, 2027
• RODOLFO BLAS CLEAR
  License 1045920 · expires October 31, 2028
• RODRIGUEZ BROTHERS ENGINEERING INC Contr Bond Susp
  License 670969 · expires January 31, 2027
• ROMAN ELECTRIC AND LIGHTING CORP CLEAR
  License 1067012 · expires May 31, 2028
• ROSE GARDEN LANDSCAPING INC CLEAR
  License 1009854 · expires December 31, 2027
• ROVAC BUILDER CLEAR
  License 1110101 · expires September 30, 2027
• ROYALTY PLUMBING INC CLEAR
  License 1109464 · expires August 31, 2027
• RUDOLF CARL THEILACKER CONTRACTOR CLEAR
  License 279711 · expires March 31, 2027
• RUVICO INC CLEAR
  License 1021363 · expires December 31, 2026
• RYAN ELECTRIC INC CLEAR
  License 790924 · expires February 28, 2027
• RYNOCLAD TECHNOLOGIES INC CLEAR
  License 963208 · expires March 31, 2028
• S C M CONSTRUCTION INC CLEAR
  License 935736 · expires July 31, 2027
• SAFE USA INC CLEAR
  License 874085 · expires November 30, 2026
• SAFFORD PLUMBING CLEAR
  License 968088 · expires July 31, 2028
• SALAS ELECTRIC CO CLEAR
  License 1141393 · expires August 31, 2027
• SALAZAR ELECTRIC LLC CLEAR
  License 1134142 · expires March 31, 2027
• SAMUEL ELIAS MILAM CLEAR
  License 937003 · expires August 31, 2027
• SANDOVAL CLEAR
  License 927957 · expires May 31, 2027
• SANDOVAL CONSTRUCTION CLEAR
  License 876715 · expires April 30, 2028
• SANTANA CONSTRUCTION ENTERPRISES CLEAR
  License 848705 · expires October 31, 2028
• SANTANA'S IRON WORK CLEAR
  License 926059 · expires December 31, 2026

Page 15 of 19 · ← Previous · Next →