Heffernan is the biggest rival of Rampart. Heffernan was founded in 1988, and its headquarters is in Walnut Creek, California. Heffernan operates in the Insurance Brokers industry. Heffernan has 800 more employees than Rampart.
RDS Insurance Brokers has been one of Rampart's top competitors. RDS Insurance Brokers is a Private company that was founded in San Dimas, California in 1978. RDS Insurance Brokers is in the Insurance Brokers industry. RDS Insurance Brokers has 165 fewer employees vs. Rampart.