James and Joyce Giles Foundation

Mutual of America Foundation

New York, NY

WK Kellogg Foundation

Battle Creek, MI

The W.K. Kellogg Foundation funds work to help children, families, and communities thrive, including early education, health equity, food systems, family economic well-being, and racial equity. In 2025, its grants ranged from $50 to nearly $5 million, with a median of $100,000; it funds across the United States, with long-term commitments in several states and communities, as well as parts of Mexico and Haiti. It accepts unsolicited proposals online at any time.

Enterprise Holdings Foundation

Saint Louis, MO

The Enterprise Holdings Foundation supports charitable and educational nonprofits in communities where Enterprise Mobility operates, focusing on health, education, arts, and disaster relief; applicants must be actively supported by an Enterprise Mobility team member, spouse, or domestic partner. Giving varies widely: it reported 9,499 grants in 2024, but its 2025 filing showed one grant of $101.4 million, so that amount is not a typical award. Applications are accepted at any time through eligible Enterprise-affiliated applicants; the Foundation does not limit giving to preselected organizations.

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.

Annie E Casey Foundation Inc

Baltimore, MD

The Annie E. Casey Foundation funds U.S. nonprofits and other partners working to improve outcomes for children and young people, including family strengthening, child welfare, education, employment, community development and juvenile justice. In 2024, grants ranged from $50 to $1,185,000, with a median of $40,000. Grants are by invitation only; it does not accept unsolicited requests.

The Harry and Jeanette Weinberg

Owings Mills, MD

The Harry and Jeanette Weinberg Foundation funds direct services, programs, general operations, and capital projects in housing, health, jobs, education, and aging for low-income and vulnerable people. Its 2024 grants had a median of $50,000; its Small Grants Program offers up to $50,000 over two years, with funding focused on Baltimore, Hawaiʻi, Israel, and Northeastern Pennsylvania. It awards grants by invitation only and does not accept unsolicited requests.

Johns Hopkins University

Baltimore, MD

Johns Hopkins University funds a broad range of education, research, health, and community-related work, with 2025 grants ranging from $5,500 to nearly $95 million and a median of $100,000; many of the largest awards were sub-awards. Its grants went to organizations across the U.S., with the largest shares in California and Maryland, and the profile does not state whether it accepts unsolicited requests.

The Keith Campbell Foundation

Bethesda, MD

The Keith Campbell Foundation funds nonprofits working for equitable, livable communities, especially on watershed health, clean water, agriculture, and related community needs, with a focus on the Chesapeake and Atlantic Coastal Bays and California’s San Francisco Bay watershed. Giving varies widely: 2024 grants ranged from $40 to $1.5 million, with a median of $5,000. It accepts unsolicited requests, with two application cycles per year.

Cystic Fibrosis Foundation

Bethesda, MD

The Cystic Fibrosis Foundation funds cystic fibrosis research, drug development, specialized care, and related training and clinical programs. In 2024, its grants had a median of about $150,000, with awards ranging from $2,800 to nearly $12.9 million; it supports work nationwide. Applications are submitted through specific funding opportunities, but the profile does not state whether unsolicited requests are accepted.

Baltimore Community Foundation Inc

Baltimore, MD

Baltimore Community Foundation supports schools, neighborhoods, and community projects, including work on kindergarten readiness, student well-being, neighborhood vitality, and arts and culture. Its 2024 grants had a median of about $19,800, with amounts varying widely, and its strategic school and neighborhood grants focus on Baltimore City and Baltimore County. It invites applications through its online portal for specified grant programs.

Associated Jewish Charities of Baltimore

Baltimore, MD

Associated Jewish Charities of Baltimore supports Jewish life and related charitable, educational, religious, health, humanitarian, cultural, and social-service needs in Baltimore, nationally, in Israel, and worldwide. Its 2025 grants ranged from $5,020 to $15.25 million, with a median of $18,750; the profile describes specific funding opportunities and donor-advised fund recommendations but does not state whether it accepts unsolicited requests.

Nora Roberts Foundation

Glenn Dale, MD

The Nora Roberts Foundation prioritizes literacy and also supports the arts, children, social justice, and the environment. It gives mainly in Maryland and nearby parts of Pennsylvania, Virginia, West Virginia, and Washington, DC, while also making grants nationwide; typical grants are about $3,000–$5,000. Its 2025 filing says it funds preselected organizations only and does not accept unsolicited requests.