Licensed Contractors in Ontario, CA - Page 2

952 CSLB contractor license records for Ontario (Page 2 of 20)

952

Total Contractors

902

Active Licenses

44

Federal Records

Ontario Contractor License Records

Showing contractors 51-100 of 952

A A G PUMP SERVICES

Clear

License #1067678 · D21

Active

A A HVAC INC

Clear

License #1057513 · C20

Active

A G CONSTRUCTION

Clear

License #793245 · B

Active

A G HEATING & AIR

Clear

License #1132532 · C20

Active

A I C INTERIOR INC

Clear

License #806562 · B

Active

A M F I

Clear

License #800845 · D21

Active

A N D A

Clear

License #1032575 · B

Active

A T S CONSTRUCTION

Clear

License #807837 · B

Active

A-1 DELIVERY CO

Clear

License #971377 · D34

Active

A-C POWER SYSTEMS

Clear

License #514277 · C10

Active

A2Z BUILDERS GROUP INC

Clear

License #1150914 · B

Active

AAK PAINTING SERVICES

Clear

License #1123755 · C33

Active

ABBA COMMUNICATIONS

Clear

License #777384 · C-7

Active

ABC RESOURCES INC

Clear

License #538680 · A

Active

ABL CONTRACTING INC

Clear

License #1126537 · B

Active

ABLE ELECTRIC

Clear

License #766137 · C10

Active

ABOUBAKARE ANSARY

Clear

License #1042235 · B

Active

ABOVEGROUND SOLUTIONS INC

Clear

License #1106979 · B

Active

ABSOLUTE FACILITY CONTROL INC

Clear

License #796155 · B

Active

AC POWER 1 INC

Clear

License #1018955 · C10

Active

ACE ENGINEERING INC

Clear

License #613320 · A

Active

ACES CONSTRUCTION

Clear

License #1083500 · B

Active

ACOSTA PIPELINE INC

Clear

License #1064810 · A

Active

ACTION RESTORATION

Clear

License #798665 · B

Active

ADAMS JOHN I CONSTRUCTION

Clear

License #1011138 · B

Active

ADAPTIVE CONTROLS SERVICES

Clear

License #1116142 · C20

Active

ADVANCE CONSTRUCTION

Clear

License #842289 · B

Active

ADVANCED CABLING & CONSTRUCTION

Clear

License #1093994 · A

Work Comp Susp

ADVANCED ELECTRICAL INNOVATIONS

Clear

License #856385 · C10

Active

ADVANCED MONITORING INC

Clear

License #1035016 · C-7

Active

ADVANCED TECHNOLOGY INC

Clear

License #1064615 · C10

Active

AFFORDABLE HOLLOW METAL DOOR INC

Clear

License #1018578 · D28

Active

AFFORDABLE SERVICES

Clear

License #857640 · C21

Active

AG BUILDING AND REMODELING INC

Clear

License #1153779 · B

Active

AGILITY INTEGRATION CORPORATION

Clear

License #804121 · C10

Active

AIR CONTROL SPECIALTIES INC

Clear

License #570881 · C20

Active

AIRITE HEATING AND AIR CONDITIONING INC

Clear

License #232930 · C-4

Active

AIRTONG HEATING & COOLING

Clear

License #991016 · C20

Active

AJ CLAREMONT STRUCTURAL STEEL FAB INC

Clear

License #1137486 · C51

Active

AJB CONCRETE & MASONRY CONSTRUCTION

Clear

License #463690 · C-8

Active

ALATORRE CLARA VERONICA

Clear

License #1043353 · C33

Active

ALBERTO GARCIA CONTRACTOR

Clear

License #624340 · B

Active

ALC ROOFING

Clear

License #1148910 · C39

Active

ALEX ELECTRICAL SERVICES INC

Clear

License #1061425 · C10

Active

ALEXANDER INSTALLATION & TECHNOLOGY SERVICES LLC

Clear

License #1060170 · C-7

Liab Ins Susp

ALFA POWER ELECTRIC

Clear

License #1142958 · C10

Active

ALJOHN BUILDERS

Clear

License #616383 · B

Active

ALL - RIGHT ROOFING LLC

Clear

License #726974 · C39

Active

ALL COAST EPOXY LLC

Clear

License #1075287 · C15

Active

ALL FINISH COATING INC

Clear

License #1104874 · C33

Active

Nearby Contractor License Lookups

Ontario Contractor License Lookup

Use this page when you need a Ontario contractor license lookup, a list of licensed general contractors in Ontario, or a fast way to screen specialty subs before bid award. Each profile starts from CSLB license data and adds federal safety, wage, debarment, environmental, and permit records.

These records cover contractors based in Ontario. The list includes general building contractors and specialty trades, with license number, status, primary classification, and federal record count shown before you open a full profile.

Of the 952 CSLB-registered contractors in Ontario, 95% hold active licenses and 44 have at least one record in federal databases. For GCs verifying subs, that means a standard CSLB status check is only the first pass; the risk review also needs workers' comp, bond, SAM.gov, OSHA, DOL, EPA, and permit checks.

What to Check for Ontario Contractors

  • CSLB License: Confirm Active status (not Suspended, Revoked, or Expired)
  • Workers' Comp: Verify current coverage; exempt status means no employees
  • Contractor Bond: California requires $25,000 minimum (SB 607, Jan 2023)
  • Federal Debarment: Search SAM.gov for exclusion records
  • Safety & Wage History: Check OSHA citations and DOL wage violations

Data sourced from California Contractors State License Board and federal databases. Updated weekly. For official verification, check directly with CSLB.