IAT Insurance Group

IAT Insurance Group is one of the largest privately held specialty property and casualty insurance carriers in the United States. Founded in 1991 and owned by the Peter R. Kellogg family, IAT operates through eight distinct business units serving niche commercial markets including commercial transportation, excess and surplus lines, surety, inland marine, management liability, homeowners, and reinsurance. The company distributes exclusively through wholesale and specialty agents and brokers, targeting hard-to-place and nonstandard risks.

IAT has demonstrated exceptional financial performance in recent years. In February 2025, AM Best revised its outlook to positive (from stable) for IAT Reinsurance Company Ltd. and most operating subsidiaries while affirming the A- (Excellent) Financial Strength Rating -- reflecting the group's best two consecutive years of operating performance in its history, organic surplus growth, and improved risk-adjusted capitalization. The company's book value grew 27% over 2023-2024 to reach USD 1.6 billion.

The company operates six licensed insurance carriers: Acceptance Casualty Insurance Company, Acceptance Indemnity Insurance Company, Harco National Insurance Company, Occidental Fire & Casualty Company of North Carolina, TransGuard Insurance Company of America, Inc., and Wilshire Insurance Company.