Duggan Capital is a private American investment firm that functions as the family office for billionaire investor Robert W. Duggan. The firm is responsible for managing the personal and financial affairs, including investments, of the Duggan family. Located in Menlo Park, California, a hub for venture capital and investment, Duggan Capital operates as a private wealth management entity focused on preserving and growing the family's assets. As a family office, its services are not available to the general public.