Home › Top 4 Insurance Company in Darien, Connecticut Find best Insurance Company in Darien, Connecticut, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Cross Private Client Insurance US, Darien, CT 06820980 Boston Post Rd # A Arch Insurance - Darien (CT 06820) US, Darien, CT 06820330 Post Rd Lawley - Darien (CT 06820) US, Darien, CT 0682022 Thorndal Cir f3 Rand Insurance, Inc. US, Darien, CT 0682030 Old Kings Hwy S