The Grundy Foundation was established by Joseph R. Grundy to continue his philanthropic tradition by supporting the community through grant awards to deserving nonprofit organizations. His endowment sustains operations of the Margaret R. Grundy Memorial Museum and Library, named in honor of his sister, and extends to broader community support primarily in Bucks County, focusing on public charities and sectors like arts and culture, education, community development, and health and human services.
The Grundy Foundation's grantmaking is designed to benefit the inhabitants and institutions of the Commonwealth of Pennsylvania, with a focus on Bucks County. The foundation particularly supports capital projects that serve a wide area of the county, aiming for the benefit and use of the people generally. Special consideration is given to organizations in Bristol Borough. While mainly focusing on "Bricks and Mortar" projects, grants for operating or programmatic support are given to pre-selected or Board-designated projects in areas such as arts and culture, education, and emergency needs. Grants are not open to organizations receiving support from the United Way of Bucks County for operating or programmatic expenses.