Insource Insurance Agency is a full-service property and casualty insurance agency, serving businesses, individuals and families throughout the state of California. Insource takes a personalized and friendly approach to providing the absolute best insurance protection possible, while looking for every opportunity to maximize savings for our clients.

Founded by 25-year insurance veteran John Colston, Insource was established on the premise that our customers would be attracted to a highly personalized approach to providing affordable insurance protection. The success of this approach has been proven through decades of interaction with loyal clients.

Our Guiding Principles

• Integrity & honesty comes before profitability.
• We are client-centric...the customer comes first.
• We are courteous to everyone.
• We operate with a “get it done” attitude.
• We seek excellence in everything we do.
• We go the extra mile and we don’t cut corners.
• We seek constant improvement in every area of our agency.