Licensed Contractors in Ontario, California

All license data is sourced from the California Contractors State License Board (CSLB). Last data update: April 19, 2026.

Contractors by Trade

Building (455)
Electrical (168)
Limited (120)
Painting (109)
HVAC (65)
Roofing (63)
Plumbing (62)
Earthwork (55)
Landscaping (47)
Welding (30)
Fire (28)
Solar (3)
Direct Source Communication Inc Active
License #955641 C-7, C-10 Ontario, CA Est. 2010
Pona'S Construction Active
License #955730 B Ontario, CA Est. 2010
L D M Construction Services Active
License #957993 B, D34 Ontario, CA Est. 2011
Super Mario Construction Active
License #958569 B Ontario, CA Est. 2011
California Turf Management Inc Active
License #958651 C-27 Ontario, CA Est. 2011
Timothy S Matlack Active
License #958791 C-10 Ontario, CA Est. 2011
Ernesto Barberi Active
License #959795 B Ontario, CA Est. 2011
Marlu Construction Active
License #960949 A, B +1 more Ontario, CA Est. 2011
C B Home Construction Active
License #961219 B Ontario, CA Est. 2011
Rynoclad Technologies Inc Active
License #963208 C-17 Ontario, CA Est. 2011
Ontario Wholesale Carpet Active
License #964076 C-15 Ontario, CA Est. 2011
Kingdom Flooring Active
License #964588 C-15 Ontario, CA Est. 2011
Maldonado Industries Active
License #964663 C-51, C-60 Ontario, CA Est. 2011
Jfp Construction Company Inc Active
License #965462 B Ontario, CA Est. 2011
D & D Contractors Inc Active
License #966076 B Ontario, CA Est. 2011
Property Builders Concepts & Maintenance Inc Active
License #967277 B Ontario, CA Est. 2011
Safford Plumbing Active
License #968088 C-36 Ontario, CA Est. 2011
Danny O'Dell Floor Covering Active
License #969366 C-15 Ontario, CA Est. 2012
A - Industrial Design / Build Active
License #969373 B Ontario, CA Est. 2012
Steel Design Builders Inc Active
License #969622 C-51 Ontario, CA Est. 2012
D S S Active
License #970275 C-7 Ontario, CA Est. 2012
Jimmy A General Construction Inc Active
License #971256 B Ontario, CA Est. 2012
Ontarios Landscape Inc Active
License #972069 C-27 Ontario, CA Est. 2012
Pennco Construction Group Inc Active
License #972111 B Ontario, CA Est. 2012
Spec Construction & Development Inc Active
License #972188 B Ontario, CA Est. 2012
Honey Badger Engineers Active
License #972415 A, B Ontario, CA Est. 2012
Constru One Inc Active
License #972427 A, B Ontario, CA Est. 2012
Steve Hong Active
License #972839 B Ontario, CA Est. 2012
J S C Gardens & Landscape Active
License #973284 C-27 Ontario, CA Est. 2012
Prefab Granite & Tile Depot Inc Active
License #975056 B, C-54 Ontario, CA Est. 2012
Soriano Glass Active
License #975374 C-17 Ontario, CA Est. 2012
Das Commerical Openings Inc Active
License #975798 D28 Ontario, CA Est. 2012
Wh Jewett Inc Active
License #975875 B, C-8 Ontario, CA Est. 2012
Cali Construction Active
License #976265 B-2, C-15 Ontario, CA Est. 2012
Fixd Construction Company Active
License #976763 B Ontario, CA Est. 2012
Alpha Omega Plumbing Active
License #977823 C-36 Ontario, CA Est. 2012
Eye On Builders Active
License #977924 B, C-27 Ontario, CA Est. 2012
Foothill Heating & Air Conditioning Active
License #979917 C-20 Ontario, CA Est. 2013
Jake Sandoval Dba Clearwater Plumbing & Construction Active
License #980596 B, C-36 Ontario, CA Est. 2013
Forte Painters And General Construction Active
License #980663 B, C-33 +1 more Ontario, CA Est. 2013
G V C O Construction Inc Active
License #980998 A, D12 Ontario, CA Est. 2013
Turbine Repair Services Llc Active
License #981674 A, C-10 Ontario, CA Est. 2013
Victor Orozco Construction Active
License #982481 B Ontario, CA Est. 2013
Kp Builders Active
License #983861 B, C-51 Ontario, CA Est. 2013
Forrest Glass & Door Active
License #984938 C-17, D28 Ontario, CA Est. 2013
Prime Construction Services Inc Active
License #985031 B Ontario, CA Est. 2013
Fh Ii Homebuilders Inc Active
License #985046 B Ontario, CA Est. 2013
Jose Luis Palacios Active
License #986197 C-36 Ontario, CA Est. 2013
Lighthouse Construction & Remodel Active
License #986212 B Ontario, CA Est. 2013
Fresno Shower Door Inc Active
License #986239 C-17, D24 +1 more Ontario, CA Est. 2013

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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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