Headquarters: Rock Hill, NY
Year founded: 1960
Leadership: Howard Siegel, CEO
Irwin Siegel Agency [ISA] has spent the last five and a half decades focused on founder Irwin Siegel’s goal of “improving the quality of life for society’s most vulnerable members: our developmentally disabled.” ISA developed the first P&C insurance program designed for nonprofit organizations dedicated to individuals with disabilities. Today, the firm offers programs for a range of nonprofits, including youth programs, community action agencies, paratransit companies and more.
