Navigators Group, Inc. engages in the provision of international insurance. It operates through the following business segments: Marine; P&C, and Professional Liability. The Marine segment offers insurance for companies engaged in diverse aspects of shipping, global trade, and worldwide transportation. The P&C segment specializes excess and surplus products and to the standard commercial middle market for targeted industries and exposures. The Professional Liability segment includes niche insurance solutions for professional liability, and management liability risks. The company was founded by Terence N. Deeks in 1974 and is headquartered in Stamford, CT.