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.
