Interline Insurance Services is a brokerage company that has been serving the needs of insurance agencies in California since 1983. The company offers in-house claim adjustment, loss prevention, premium financing, trade association benefit and underwriting services. Interline Insurance Services lines of coverage include auto and general liability, physical damage, inland marine, cargo and property insurance. The company maintains a team of underwriters that serves each of its client agencies. It offers the American Highway Carriers Association program for professional truck owners and private haulers. The company is a member of the Meadowbrook Insurance Group, which is one of the largest insurance brokerage firms in the United States. Interline Insurance Services is located in Cerritos, Calif.