Hennessy Advisors, Inc. is an publicly owned investment manager. It provides its services to Hennessy Funds and investment companies. The firm launches and manages equity, fixed income, and balanced mutual funds. It invests in the public equity and fixed income markets across the globe. The firm primarily invests in growth stocks of companies. It conducts in-house research to make its investments. Hennessy Advisors, Inc. was founded in 1989 and is based in Novato, California with additional offices in Boston, Massachusetts and Chapel Hill, North Carolina.