The Sander Jacobs Cassayre Insurance Services Mobile app allows quick access to view and manage your policies anytime…anywhere. As a Foundation Risk Partners company, Sander Jacobs Cassayre Insurance is a full-service insurance agency servicing California's Napa and Sonoma Counties. Their client base has since extended to many areas of Northern California. Sander Jacobs Cassayre Insurance has been protecting their clients’ achievements for over seven decades and believe that the investments you've made to better your quality of living…deserve to be protected