Influential philanthropies who have joined together to support the First Five Years Fund include:
- Buffett Early Childhood Fund
- Bill & Melinda Gates Foundation
- Irving Harris Foundation
- George Kaiser Family Foundation
- W.K. Kellogg Foundation
- The Pritzker Children's Initiative
- And an anonymous donor.
These family philanthropies apply a private sector approach to social change and recognize early learning as a particularly influential and cost-effective investment.