Hennessy Advisors, Inc. is a publicly owned investment manager that serves Hennessy Funds and other investment companies. It launches and manages equity, fixed income, and balanced mutual funds, investing in public equity and fixed income markets worldwide, with a primary focus on growth stocks. The firm conducts in-house research to guide its investments. Founded in 1989, Hennessy Advisors is based in Novato, California, with additional offices in Boston, Massachusetts, and Chapel Hill, North Carolina.