AmTrust Financial Workers' Compensation Insurance

AmTrust Financial Services was founded in 1998 in Manhattan, New York, by George and Michael Karfunkel along with Barry Zyskind, who continues to serve as chairman, CEO, and president. The company built an operational headquarters in downtown Cleveland, Ohio in 2011 to centralize support functions, and in 2018 it went private through a transaction in which Evergreen Parent, L.P. acquired the roughly 45% of shares the founding families did not already control. AmTrust Insurance Company and its rated subsidiaries carry an AM Best Financial Strength Rating of A- (Excellent) and a Long-Term Issuer Credit Rating of a- (Excellent), both affirmed October 10, 2025 with a stable outlook.

AmTrust is one of the largest writers of small-business workers' compensation in the United States, built around streamlined online policy issuance and a pay-as-you-go premium program that bases payment on actual payroll rather than an estimated annual figure. The company's small-commercial focus means it typically has broad appetite for lower-payroll accounts across many class codes, including many that larger, diversified carriers may treat as a smaller part of their overall book. AmTrust's scale in the small-commercial segment has made it a frequent option for single-location businesses and owner-operated companies with modest total payroll.

AmTrust distributes coverage through independent agents rather than directly to the public. A business can access AmTrust's workers' compensation program alongside other carriers through a licensed agency, which handles the application and comparison process on the employer's behalf and can explain how AmTrust's pay-as-you-go billing works compared with a traditional annual premium.