The official ISU Stephen B. Marvin Linkedin Page! Follow us on Social Media! We're on all platforms :) Established in 1912, the ISU Stephen B. Marvin Insurance Agency is Antelope Valley's oldest insurance agency. Our company has grown to a full service agency meeting the needs of individuals, families, and businesses throughout the Antelope Valley and Southern California. As an independent agency we work for you, not for an insurance company. We only do business with financially A rated carriers that are both affordable and responsive. At ISU Stephen B. Marvin Insurance, we have an experienced team who can analyze the various opti...