The Goldman Sachs Group, Inc. is a global investment banking and securities firm which engages in investment banking, securities, investment management, and other financial services primarily with institutional clients. Goldman Sachs was founded in 1869 and is headquartered at 200 West Street in the Lower Manhattan area of New York City, with additional offices in major international financial centers. The firm provides mergers and acquisitions advice, underwriting services, asset management, and prime brokerage to its clients, which include corporations, governments and individuals. The firm also engages in proprietary trading and private equity deals, and is a primary dealer in the United States Treasury security market.