California Contractor Insurance
Asena Capital Insurance Services — California-licensed insurance brokerage serving contractors statewide. Phone: (858) 925-9555. Email: info@asenainsurance.com.
Ontario is home to 323 licensed general contractors (B, CSLB September 2026), about 36% of the 885 contractor licenses based here.
Nearby in San Bernardino County: Rancho Cucamonga (363), San Bernardino (273), Upland (269), Fontana (263).
32% of Ontario's B licensees hold more than one classification — most often C-10 Electrical Contractor (10%), A General Engineering Contractor (7%). Extra classifications can change how carriers rate your general liability and workers' comp, so list every license class when you quote.
Business structure: 40% sole owners, 54% corporations, 4% LLCs; median time licensed 10.5 years.
For general contractors, underwriters focus first on: builder's risk on projects under construction; and crew trucks, trailers and equipment. See the full coverage guide for general contractors for limits, endorsements and workers' comp rules.
Asena Capital Insurance Services compares multiple markets for Ontario contractors and requests additional insured endorsements for you when a contract calls for them. Call (858) 925-9555 or request a quote — only your name, phone and email are required. CA License #6008596.
323 active B licenses have a business address in Ontario (CSLB, September 2026); 47% carry workers' comp and 50% are filed exempt.
Commonly general liability with additional insured status for the owner, primary and non-contributory wording, waiver of subrogation, workers' comp and auto. Larger projects may add umbrella limits or builder's risk.