Licensed Contractors in Ontario, California

All license data is sourced from the California Contractors State License Board (CSLB). Last data update: April 05, 2026.

Contractors by Trade

Building (456)
Electrical (166)
Limited (119)
Painting (108)
HVAC (63)
Roofing (63)
Plumbing (61)
Earthwork (55)
Landscaping (49)
Welding (30)
Fire (28)
Solar (3)
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
Modern Metal Active
License #763253 C-23, D24 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
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
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
Nichols Electric Active
License #800384 C-10 Ontario, CA Est. 2001
T K Systems Inc Dba A M F I Active
License #800845 D21, D24 Ontario, CA Est. 2001
Premium Floor Covering Inc Active
License #802401 C-15 Ontario, CA Est. 2001
Hdc Construction Inc Active
License #802646 B, C-9 +1 more Ontario, CA Est. 2002
Agility Integration Corporation Active
License #804121 C-10 Ontario, CA Est. 2002
Riggio Construction Inc Active
License #806241 B Ontario, CA Est. 2002

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Licensing Resources

How to verify a contractor license
Deposit and payment rules for California contracts
Home improvement contract requirements

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