Welcome to James K. Mason Insurance Services LLC

  • Business Owners (General Liability and Property)
  • Workers Compensation
  • Commercial Auto/Non-Owned and Hired Auto 
  • Data breach
  • Employment Practices
  • Products Liability
  • Umbrella / Excess Liability

Business Insurance on the San Francisco Peninsula is our Specialty.

We can do all types of business including Bakeries, Strip Shopping Centers and software or applications development.  We specialize in the niches of Real Estate, Wholesale Food/ Food Products Manufacturing, Auto shop/Service, Technology and Life Science in the Bay Area and surrounding areas.



Jim Mason and his son Jimmy (email Jimmy at jwm@jkmasonins.com or call 650 401 6040) are the brokers and run a small family operation in San Mateo. We have over 45 years combined writing insurance.  We have been working in Bay Area since the 80's.



We are independent brokers so we have the ability to go to reputable carriers such as Travelers, Hartford, Allied, Golden Eagle, Safeco and Hanover  Serving the following cities and beyond San Mateo, Burlingame, Millbrae, South San Francisco, San Carlos, Belmont, Redwood City, Palo Alto, Mountain View, Menlo Park, Atherton, Redwood City, Campbell,  San Jose and San Francisco as well.  We also have business in the East Bay including Hayward, Oakland, Berkley and San Leandro.