Acadia Insurance Group is a regional company offering commercial and specialty property casualty insurance coverages through independent insurance agents with local offices in Connecticut, Maine, Massachusetts, New Hampshire, New York and Vermont. Rated A+ (Superior) by A.M. Best, Acadia Insurance is a subsidiary of W. R. Berkley Corporation (NYSE: WRB), one of the nation's premier commercial lines property casualty insurance providers, and one of the 50 largest diversified financial companies in the United States.