Brendsel Family Foundation

E Bryce & Harriet Alpern Foundation

Rockville, MD

Aetna Foundation Inc

Hartford, CT

Aetna Foundation supported health and wellness, access to health care, and related community needs; its 2021 grants ranged from $5,000 to $1 million, with a median of $40,000, and went to organizations across multiple states, especially in D.C. and Connecticut. Its 2021 filing was marked final, so it appears to have ended or be winding down grantmaking; that filing said there were no restrictions on who could apply and pointed applicants to its website for application materials.

Robert and Susan Rosenbaum Foundation

Bethesda, MD

The Robert and Susan Rosenbaum Foundation supports a range of charitable organizations, including those focused on conservation, education, civil liberties, and hunger relief. Its 2025 grants ranged from $100 to $35,000, with a median of $1,000, and went mainly to organizations in Washington, D.C., New York, Virginia, and Massachusetts. It funds only preselected organizations and does not accept unsolicited requests.

The Arthur F and Isadora Dellheim

Baltimore, MD

The foundation supports charitable organizations, with recent grants going to arts and cultural groups and an educational institution. Its 2025 grants ranged from $100 to $12,500, with a $500 median; most funding went to Maryland, with some support in Louisiana and other states and Washington, D.C. It funds only preselected organizations and does not accept unsolicited requests.

The Isaac & Leah Mpotts Foundation Inc

Edgewater, MD

The foundation supports Jewish community organizations, food assistance, immigration and refugee work, health, and education, with most 2025 grant dollars going to Maryland organizations and additional support in the District of Columbia and other states. Its 38 grants ranged from $200 to $10,000, with a median of $1,000. It accepts unsolicited requests by letter with a nonprofit status determination letter; no submission deadlines are stated.

Morris Weinman Memorial Foundation Inc

Owings Mills, MD

The foundation funds a broad range of charitable work, including health, education, food assistance, housing, arts, and conservation. In 2024, grants ranged from $350 to $19,000, with a median of $1,000; most funding went to Maryland organizations, though it also supported groups in other states. It accepts unsolicited requests: applicants should send Mark Weinman a written request describing their organization’s function and purpose.