Licensed Contractors in Ontario, CA - Page 10

952 CSLB contractor license records for Ontario (Page 10 of 20)

952

Total Contractors

902

Active Licenses

44

Federal Records

Ontario Contractor License Records

Showing contractors 451-500 of 952

IN AND OUT PLUMBING

Clear

License #1030564 · C36

Active

INCREDIBUILDS INC

Clear

License #1010448 · B

Active

INLAND DESIGN BUILD

Clear

License #1005429 · A

Active

INNOVATION PAINTING INC

Clear

License #1051191 · C33

Active

INNOVATIVE GLAZING SOLUTIONS

Clear

License #871285 · C17

Active

INTEGRATED FLOORING INC

Clear

License #1047013 · C15

Active

INTEGRITY MACHINERY & PUMPS

Clear

License #1119800 · D21

Active

INTER-CITY ENERGY SYSTEMS INC

Clear

License #587709 · B

Active

INTEREBAR

Clear

License #1146594 · C50

Active

INTUMESCENT AND SYNTHETIC SPECIALTY CONTRACTOR

Clear

License #1089652 · D12

Active

ISLAND CONSTRUCTION & MAINTENANCE

Clear

License #667042 · B

Active

ISLAND PETROLEUM BUILDERS INC

Clear

License #776846 · B

Active

J & B PATIOS COVERS

Clear

License #1061238 · D03

Active

J & J INDUSTRIAL SERVICES

Clear

License #814328 · B

Active

J & S STRIPING COMPANY INC

Clear

License #538211 · C32

Active

J 1 PRO ROOFING

Clear

License #1084959 · C39

Active

J B S STAIRS & MILLWORK

Clear

License #1123475 · C-6

Active

J D MAC INC

Clear

License #1026767 · C13

Active

J L G CONSTRUCTION

Clear

License #683195 · B

Active

J M L ELECTRIC

Clear

License #539099 · C10

Active

J M W COMMUNICATIONS INC

Clear

License #1074991 · C-7

Active

J P ADDISON CONSTRUCTION INC

Clear

License #1029562 · B

Active

J P POOL SERVICES

Clear

License #925284 · D35

Active

J R PAINTING & DESIGN

Clear

License #1005335 · C33

Active

J S C GARDENS & LANDSCAPE

Clear

License #973284 · C27

Active

J S PAINTING CO

Clear

License #741595 · C33

Active

J&N MAINTENANCE SERVICES

Clear

License #1147841 · B

Active

JA CONSTRUCTION INC

Clear

License #1060402 · B

Active

JABER MEHDI

Clear

License #1034053 · A

Active

JAMES EAST ELECTRICAL INC

Clear

License #863933 · C10

Active

JANG JASON

Clear

License #1035039 · C20

Active

JAVIER TAVARES ORNELAS

Clear

License #1067792 · B

Active

JAY VEE ELECTRIC INC

Clear

License #788390 · C10

Active

JBM ELECTRIC CO

Clear

License #767304 · C10

Active

JC CUSTOM SHEET METAL LLC

Clear

License #1144832 · C43

Active

JCSV BUILDERS INC

Clear

License #1134819 · B

Active

JDK DEMO

Clear

License #1048561 · C12

Active

JE HOME CONSTRUCTION

Clear

License #1078677 · B

Active

JESSE'S AIR SYSTEMS A / C & HEATING

Clear

License #864645 · C20

Active

JESSE'S IRON WORKS

Clear

License #792073 · B

Active

JEWEL CONSTRUCTION INC

Clear

License #915742 · B

Active

JEWELS CONSTRUCTION INC

Clear

License #770969 · A

Active

JEWETT W H INC

Clear

License #975875 · B

Active

JFP CONSTRUCTION COMPANY INC

Clear

License #965462 · B

Active

JIMENEZ HERRERA LUISA MARGARITA

Clear

License #1080360 · C51

Active

JIMMY A GENERAL CONSTRUCTION INC

Clear

License #971256 · B

Active

JIMMY'S TREE CARE INC

Clear

License #1119821 · D49

Active

JL PROFESSIONAL TREE SERVICE CORP

Clear

License #1154444 · C49

Active

JMD ELECTRIC

Clear

License #1124274 · C10

Active

JML ELECTRIC

Clear

License #1116001 · C10

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.