GAMCO Investors, Inc. operates as a holding company, which engages in the provision of investment advisory and asset management services. It offers investment advisory principally through Gabelli Funds and GAMCO Asset, which manages separate accounts for high net worth individuals, institutions, and qualified pension plans, and through its role as advisor to a family of mutual funds. The company was founded by Mario J. Gabelli in 1976 and is headquartered in Greenwich, CT.