MARCUM LLP - MAJOR USA PLAYERMarcum 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 Grand Cayman, China and Ireland. Marcum offers an extensive range of professional services and a high degree of specialization. In addition to traditional accounting, assurance and tax, including domestic and international tax planning and preparation, the Firm's professional services include mergers and acquisition planning, family office services, forensic accounting, business valuation and litigation support.