Ategrity Specialty Insurance Company Holdings provides excess and surplus lines insurance and reinsurance to small and medium-sized businesses in the United States through its subsidiaries. Its property and casualty offerings include general liability, commercial property, management liability, miscellaneous professional liability, allied healthcare, and architects and engineers insurance, serving the retail, real estate, hospitality, and construction sectors. Products are marketed and distributed through brokerage and small business channels. Formerly known as Ategrity Specialty Holdings LLC, the company changed its name to Ategrity Specialty Insurance Company Holdings in June 2025. Incorporated in 2017, it is based in New York, New York, and operates as a subsidiary of Zimmer Financial Services Group LLC.