General Contractors in Ontario

234 businesses in Ontario hold an active California general contracting license in the CSLB file dated Nov 1, 2026. 21 got licensed in the past year, 48% have held a license 10 years or more and 62 have a workers' comp exemption on file.¹

General Contractors in Ontario, page 3 of 3

Business	Class	Licensed since	Status
Simple Restoration Inc	B + C36	2020	Active
Singularity Construction Inc	B	2023	Active
Sitelogiq Inc	A, B + C10	2019	Active
Skyline Services LLC	B	2022	Active
Skylinecraft Construction Inc	B + C10	2024	Active
Solgar Construction Inc	B	2021	Active
Solid Integrity Construction	B	2026	Active
Spec Construction & Development Inc	B	2012	Active
Spec Construction Co Inc	A, B + C4, C8, C9 +8	1982	Active
Spraggins A C Engineering & Underground Inc	A	1979	Active
Struct-Tech Builders	B	1989	Active
Sunpride Construction Inc	B	2026	Active
Sunwest Builders Tenant Improvements Inc	B	2015	Active
Thacker's Engineering	A	2025	Active
TR Constructions LLC	B + D28, D34	2008	Active
Trinity Framing	B	2017	Active
Turbine Repair Services LLC	A + C10	2013	Active
Ultimate Construction	B	2022	Active
United Water Restoration Group Of Ontario	B	2024	Active
Uwing Construction Inc	B	2025	Active
Vanedi Home Improvement Inc	B	2025	Active
Varez Construction Inc	B	2025	Active
Veltel Infrastructure Services LLC	B + C10, C20	2019	Active
Villa General Contracting	B	2023	Active
VLP Design Build	B	2023	Active
W M Construction Group Inc	B	2023	Active
Wavcomm	B + C10	1996	Active
West Coast Pipeline Specialist	A + C10, C36	2024	Renew by Nov 30, 2026
Westside Pro Builders	B	2024	Active
Wiskind Construction Inc	B	2025	Active
Wka Group Inc	B + C10	2025	Active
Wolf Windows And Doors	B	2026	Active
Y&D General Services	B	2024	Active
Yacko Construction Inc	A, B	2016	Active

More licensed contractors near Ontario

Sources

CSLB License Master (cslb.ca.gov, Nov 1, 2026)
Contractors State License Board (CSLB)