About Us


Century Insurance Group is a premier provider of excess and surplus lines insurance and is a division of AF Group, whose brands are premier providers of innovative, specialty insurance solutions nationwide. We manage business across three distinct segments – core commercial, specialty lines underwriting, and specialized programs. We underwrite general liability, commercial property, and multi-peril insurance for small and mid-sized businesses through a select network of general agents and brokers.

Most of our agents and brokers have partnered with Century for over a decade. This mutual commitment and support is a testament to the care we take in relationship building and service. In a marketplace that has seen companies come and go, we attribute our staying power to our commitment to underwriting discipline and exceptional service.

As an early adopter of technology, in 2002 Century Insurance Group developed and implemented our own policy management system. Since then, we were one of the first excess and surplus lines carriers to develop an online tool for agents to rate, quote, and bind business, and we’ve been on the leading edge of Application Programming Interface (API) capabilities. We believe that technology has the ability to create efficiencies for us and our agents, but that it cannot replace or lessen the importance of relationships.

Century Insurance Group is not just another carrier, we’re a partner!


1978 Founded to write coal mine reclamation bonds
1984 Began writing excess & surplus lines insurance
1988 Acquired Alliance Indemnity Insurance Corporation
1993 Acquired Evergreen National Indemnity Company
1996 Acquired Republic Environmental Systems Inc.
2000 Management led buyout
2004 IPO raising $93.5 million in gross proceeds; established Garage and Programs units; spun-off Evergreen National Indemnity Company & Continental Heritage Company
2005 Acquired admitted company shell and established marine unit
2006 Launched Century Online
2007 Established Environmental Unit
2008 Acquired by AmeriTrust (formerly Meadowbrook)
2009 Established Excess/Umbrella Unit
2015 Fosun International acquired AmeriTrust
2019 AM Best Upgrades Credit Ratings of AmeriTrust Group Members to “A-” (Excellent) with Positive Outlook
2022 Acquired by AF Group, through its subsidiary, Accident Fund Insurance Company of America
2024 AM Best Upgrades Credit Ratings of AmeriTrust Group Members to “A” (Excellent) with Stable Outlook
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