Licensed Contractors in Ontario, California

All license data is sourced from the California Contractors State License Board (CSLB). Last data update: February 20, 2026.

Contractors by Classification

General Contractors

B: General Building Contractor (341) A: General Engineering Contractor (63) B-2: Residential Remodeling Contractor (4)

Specialty Contractors

Show all 63 specialty classifications

Vertex Coatings Inc Active
License #756237 C-33 Ontario, CA Est. 1998
Cash Grading Contractors Inc Active
License #756412 A Ontario, CA Est. 1998
R3 Painting Active
License #757555 B, C-33 Ontario, CA Est. 1998
Lassiter Construction Active
License #758267 B Ontario, CA Est. 1999
Empire Sheet Metal Inc Active
License #759685 C-43 Ontario, CA Est. 1999
J P La Barge Construction Management Active
License #760763 B Ontario, CA Est. 1999
V T Electric Inc Active
License #763236 C-10 Ontario, CA Est. 1999
Dc2 Construction Active
License #763460 B, C-15 Ontario, CA Est. 1999
Sign Industries Inc Active
License #764128 C-45 Ontario, CA Est. 1999
G & S Reasonable Plumbing / All Tech Active
License #764181 C-36 Ontario, CA Est. 1999
John Yacko Active
License #764923 A, B Ontario, CA Est. 1999
Moore United Construction Inc Active
License #764972 B, C-10 +2 more Ontario, CA Est. 1999
T & K Construction Active
License #765169 D28 Ontario, CA Est. 1999
Davinson Porto Active
License #765542 C-10 Ontario, CA Est. 1999
Able Electric Active
License #766137 C-10 Ontario, CA Est. 1999
Star Hardware Inc Active
License #766703 D28 Ontario, CA Est. 1999
Murguia Construction Inc Active
License #766953 B Ontario, CA Est. 1999
Jbm Electric Co Active
License #767304 C-10 Ontario, CA Est. 1999
Landeros Construction Group Active
License #770655 B, C-27 Ontario, CA Est. 1999
Jewels Construction Inc Active
License #770969 A Ontario, CA Est. 1999
Southland Fire Protection Co Active
License #774844 C-16 Ontario, CA Est. 2000
Dchristjan Fine Cabinetry Active
License #776103 B, C-33 Ontario, CA Est. 2000
Island Petroleum Builders Inc Active
License #776846 B, C-10 +2 more Ontario, CA Est. 2000
Rockwall Construction Company Active
License #777138 B Ontario, CA Est. 2000
Abba Communications Active
License #777384 C-7 Ontario, CA Est. 2000
Besteel Fabrication Inc Active
License #777664 C-51 Ontario, CA Est. 2000
West Bay General Construction Active
License #779015 B Ontario, CA Est. 2000
Murguia Construction Active
License #780053 B Ontario, CA Est. 2000
Crown Lift Trucks Active
License #781358 D21, D24 Ontario, CA Est. 2000
Valrose Interiors Active
License #782909 D52 Ontario, CA Est. 2000
George Alfred Edginton Active
License #784411 B, C-7 Ontario, CA Est. 2000
Edward C Mierau Active
License #787998 B Ontario, CA Est. 2000
Jay Vee Electric Inc Active
License #788390 C-10 Ontario, CA Est. 2000
Reed'S Plumbing Active
License #788531 C-36 Ontario, CA Est. 2000
Steven Roy Tullos Active
License #789563 D28 Ontario, CA Est. 2001
Carlyle Glasgow Welding Services Active
License #789615 C-60 Ontario, CA Est. 2001
Belman 'S Painting Active
License #789916 C-33 Ontario, CA Est. 2001
Pago Roofing Active
License #790460 C-39 Ontario, CA Est. 2001
North American Crane Company Active
License #790487 D21 Ontario, CA Est. 2001
K P Construction Co Inc Active
License #790555 B, C-8 +1 more Ontario, CA Est. 2001
Neff Construction Inc Active
License #790576 B Ontario, CA Est. 2001
M J Directional Inc Active
License #790871 D09 Ontario, CA Est. 2001
Ryan Electric Inc Active
License #790924 C-10 Ontario, CA Est. 2001
Michael Craig Jones Active
License #790999 B Ontario, CA Est. 2001
Jesus G Torres Active
License #792073 B, C-23 Ontario, CA Est. 2001
Alberto Garcia Construction Services Inc Dba A G Construction Active
License #793245 B, C-8 +2 more Ontario, CA Est. 2001
Absolute Facility Control Inc Active
License #796155 B Ontario, CA Est. 2001
G T Electric Inc Active
License #796545 C-10 Ontario, CA Est. 2001
Action Restoration Active
License #798665 B Ontario, CA Est. 2001
Best Painting Active
License #799791 C-33 Ontario, CA Est. 2001

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