General contractors in San Marcos by the numbers
San Marcos is home to 247 licensed general contractors (B, CSLB September 2026), about 34% of the 723 contractor licenses based here.
Nearby in San Diego County: San Diego (2,686), Escondido (611), El Cajon (539), Vista (465).
28% of San Marcos's B licensees hold more than one classification — most often A General Engineering Contractor (6%), C-10 Electrical Contractor (6%). Extra classifications can change how carriers rate your general liability and workers' comp, so list every license class when you quote.
Business structure: 45% sole owners, 52% corporations, 3% LLCs; median time licensed 16.3 years.
What carriers look at
For general contractors, underwriters focus first on: crew trucks, trailers and equipment; and uninsured or underinsured subcontractors becoming the GC's responsibility at audit or after a claim. See the full coverage guide for general contractors for limits, endorsements and workers' comp rules.
Get a quote
Asena Capital Insurance Services compares multiple markets for San Marcos 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.
Frequently asked questions
How many licensed general contractors are in San Marcos?
247 active B licenses have a business address in San Marcos (CSLB, September 2026); 40% carry workers' comp and 58% are filed exempt.
Why does my workers' comp audit charge me for subcontractors?
If a sub cannot prove its own workers' comp coverage, carriers typically add that sub's payroll to your policy at audit. Collecting current certificates from every sub is the simplest protection.