Idfa Foundation

Lumen Clarke M Williams Foundation

Wilmington, DE

The foundation supports employee giving and volunteer programs, as well as K–12 classroom technology through its Teachers and Technology program. That program offers grants of up to $5,000 to eligible schools in 10 states; 2024 giving had a median grant of $6,110 and was concentrated in Delaware. It generally funds preselected organizations and does not accept unsolicited requests, though eligible teachers could apply for the announced Teachers and Technology round.

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.

CoreGiving Co

Chicago, IL

CoreGiving funds food banks and other hunger-relief organizations working to combat childhood hunger and improve access to healthy food across the United States. In 2024, grants ranged from about $5,000 to $142,000, with a median of about $25,500; the profile does not state whether it accepts unsolicited requests.

LPL Financial Foundation Inc

Boston, MA

United Way Worldwide

Alexandria, VA

United Way Worldwide funds community programs focused on youth opportunity, health, financial security, education, and disaster relief, with 2024 grants made across multiple U.S. states and internationally. Its 209 reported grants ranged from $5,100 to $736,333, with a median of $22,675. It does not state whether it accepts unsolicited grant requests.