Ategrity Specialty Insurance Company Holdings, through its subsidiaries, provides excess and surplus lines insurance and reinsurance products to small and medium-sized businesses in the United States. The company offers property and casualty insurance solutions, including general liability, commercial property, management liability, miscellaneous PL, allied healthcare, and architects and engineers insurance products to the retail, real estate, hospitality, and construction sectors. It markets and distributes its products through brokerage and small business channels. The company was formerly known as Ategrity Specialty Holdings LLC and changed its name to Ategrity Specialty Insurance Company Holdings in June 2025. Ategrity Specialty Insurance Company Holdings was incorporated in 2017 and is based in New York, New York. Ategrity Specialty Insurance Company Holdings operates as a subsidiary of Zimmer Financial Services Group LLC.