Atlantic Casualty Insurance Company

Atlantic Casualty Insurance Company


Insurance & Financial Services

About Us

Atlantic Casualty Insurance Company (Atlantic Casualty) was formed by Strickland Insurance Group (SIG) in 1983 to underwrite a substantial book of non-standard personal auto. By the late 1990's, the book had grown to over $100 million of premium in seven states. In 1998 the decision was made to refocus the company in commercial products. Our current product lines include Commercial General Liability, Commercial Package, Inland Marine, Ocean Marine, Commercial Property, Boiler and Machinery and Commercial Auto (NC only). These products are distributed exclusively through Managing General Agencies. In January of 2016, Atlantic Casualty and SIG were acquired and became part of the Auto-Owners Insurance Group. Auto-Owners Insurance Group has been in business for over 100 years and has been ranked among the Fortune 500 for the over 13 years. Written premium for the group is over $6 billion with an A.M. Best rating of A++ (Superior).

With offices in Goldsboro, NC; Hartford, CT; Scottsdale, AZ; and Richmond, VA; Atlantic Casualty has positioned itself to better serve its agency force and has authority in fifty states including Washington, DC. Hard work and solid results over the past 40 years have earned Atlantic Casualty an A+ (Superior) IX (financial size) rating from A.M. Best. Atlantic Casualty offers our agency partners excellent insurance products, state of the art technology, financial strength, and stability. If you would like more information about Atlantic Casualty Insurance Company, visit