Hennessy Advisors, Inc.
Investment ManagementCalifornia, United States2-10 Employees
Hennessy Advisors, Inc. serves as the publicly traded investment manager for the Hennessy Funds. The firm offers a broad lineup of mutual funds and states its aim to place shareholders’ interests first in its investment approach. Based in Novato, California, it describes its client interactions as conducted with integrity and candor. The company emphasizes a disciplined investment style and a commitment to managing its mutual funds for the benefit of shareholders. With a small staff, it operates as a modest participant in the investment management field. A recent development involves a data breach investigation reported in 2026.