In August 2020, Castellano, Korenberg merged with Marcum LLP, expanding our services and capabilities for our clients. Marcum LLP is one of the largest independent public accounting and advisory services firms in the nation, with offices in major business markets throughout the U.S., as well as select international locations. Headquartered in New York City, Marcum provides a full spectrum of traditional tax, accounting, and assurance services; advisory, valuation, and litigation support; managed accounting services; and an extensive portfolio of specialty and niche industry practices. The Firm serves both privately held and publicly registered companies, as well as nonprofit and social sector entities, high net worth individuals, private equity funds, and hedge funds, with a focus on middle-market companies and closely held family businesses. Marcum is a member of the Marcum Group, an organization providing a comprehensive array of professional services.