Headquartered in Traverse City, Michigan, Hagerty Insurance Agency started out as a general lines insurance agency around 40 years ago. While insurance was our business, wooden boats and collector cars were our passion. We saw a need for specialty insurance and in 1983 launched a revolutionary Agreed Value policy for classic boat owners. It was such a success that in 1991, we launched specialty insurance for collector car owners and today, we're the leading insurance agency for collector cars and boats in the United States. We also offer the Hagerty Collector Network membership, which is the largest and most proactive community of collector car enthusiasts in the country with more than 225,000 members.assistance, finance, international services and a host of resources for the hobbyist, Hagerty Collector Network is designed to be your one-stop shop for hobby information.