Stockton Location
7337 Pacific Ave
Stockton, CA 95207

Fax: 877-577-1722


Welcome to our site!

Locally owned and operated, Mark Twain Insurance Services has delivered quality insurance solutions to individuals in California, and many more, offering Auto and Homeowners insurance coverage, as well as other insurance products. Our team of experienced insurance professionals is committed to helping you find a policy that fits your needs. We focus on providing personalized attention and quality customer service to create an experience that’s difficult to find in today’s market. At Mark Twain Insurance Services, we’ll work with you to ensure that you and those you care about most are protected.

COVID-19 Update

To all our friends and clients of Sanguinetti & Co./Mark Twain Insurance Services, at this time our office is closed to all walk-in customers until further notice. We will continue to take your calls at (800)350-7700 or (209)954-1000. You can also email us at Our fax numbers are (877)577-1722 and (209)954-0800.


Once we are able to open up fully to the public again, we will let you know. Until that time, please stay safe and healthy. We are all in this trying time together, and together we will make it through. Thank you.



Meet Our Team


Accommodating, professional, helpful, and quick. Very comfortable experience and I was impressed by their capabilities. Highly recommended.

Brad M.

I feel lucky to have found an agent willing to provide this level of service. No need to look anywhere else!

Michelle D.

Over the years we've never once had to worry about our coverage. My husband and I are long-time customers and proud to be.

Carol S.

Surprisingly flexible and in-touch with my needs as a small business owner. Can't ask for more.

Spencer F.

They have strong ties with the community, and it shows. It's nice to do business with people that really show they care about you and your family.

Susan T.

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