The firm is an American multinational private equity firm, specializing in leveraged buyouts. Headquartered in New York City, it sponsors and manages private equity investment funds. A pioneer in the leveraged buyout industry, the firm has completed over $400 billion of private equity transactions since its inception. The firm was founded in 1976 by Jerome Kohlberg, Jr., and cousins Henry Kravis and George R. Roberts. KKR has completed investments in over 160 companies since 1977, completing at least one investment in every year except in 1982 and in 1990. KKR is headquartered in the Solow Building at 9 West 57th Street, Manhattan, New York, with U.S. offices in Menlo Park, San Francisco, Houston, and Washington, D.C., and offices abroad in London, Paris, Hong Kong, Tokyo, Beijing, Mumbai, Dubai, Seoul, São Paulo and Sydney.