Alfred P Sloan Foundation

The Alfred P. Sloan Foundation takes a highly strategic, program-director-driven approach to grantmaking. Unlike many foundations that accept unsolicited proposals, Sloan requires grantseekers to submit letters of inquiry that are reviewed by program directors before formal proposals are invited. The Foundation seeks proposals for original initiatives led by outstanding individuals or teams, with emphasis on projects that have a high expected return to society, exhibit a high degree of methodological rigor, and address gaps where funding from the private sector, government, or other foundations is not yet widely available. A distinctive strategic feature is Sloan's time-limited approach to program areas — most grantmaking programs are designed to have a finite lifetime of roughly a decade, after which the Foundation pivots to emerging areas of need. This was demonstrated when programs like Chemistry of Indoor Environments and the Deep Carbon Observatory concluded, making way for the Matter-to-Life program. Under new president Stacie Bloom (January 2026), the Foundation continues its mission across five major program areas: Research, Higher Education, Technology, Public Understanding, and New York City.

The Alfred P. Sloan Foundation distributes approximately $80 million annually across roughly 200 grants (excluding the Sloan Research Fellowships). Individual grant sizes span a wide range from $1,814 to $16 million, reflecting the diversity of programs. Current open calls (2026) illustrate the range: early-career faculty research on energy system decarbonization ($150,000-$250,000), studies on returns to R&D investment (variable), and STEM graduate education pathways (up to $500,000). The Higher Education program's Sloan Centers for Systemic Change awards up to $1.4 million over four years, while Energy and Environment cycles can allocate $2.6-$5.7 million per RFP. Technology grants for Open Source Program Offices range from $650,000-$700,000+. The Foundation's total assets stand at approximately $2.17 billion, and its grant review process is designed to mimic peer review at high-quality academic journals, with independent expert reviews for larger or complex proposals. The Sloan Research Fellowships, one of the most prestigious early-career awards, provide two-year fellowships in seven scientific fields.

The Alfred P. Sloan Foundation occupies a distinctive mid-tier position among major U.S. science-focused foundations, with a sharper thematic focus than most peers of comparable size.

Sloan differentiates itself through its time-limited programmatic cycles (roughly decade-long commitments), its strong emphasis on STEM workforce diversity (particularly doctoral education for underrepresented minorities dating back to 1996), and its unique blend of pure science funding with economics and public understanding of science. Unlike the Simons Foundation, which focuses almost exclusively on mathematics and basic sciences, Sloan casts a wider net that includes technology policy, scholarly communication, and cultural engagement with science.

The Foundation is undergoing a significant leadership transition in 2025-2026. Ruth Brenner served as Interim President from June to December 2025, with Stacie Bloom assuming the presidency in January 2026. Bloom will lead the Foundation forward in its mission to support original research and education in STEM fields. In 2026, several active open calls reflect current priorities: early-career faculty research on energy system decarbonization (deadline March 17, 2026), studies on social and economic returns to R&D investment (deadline April 30, 2026), and grants up to $500,000 for U.S. higher education institutions advancing access in STEM graduate education (deadline June 1, 2026). The most recent Form 990-PF was filed on November 15, 2025. The Foundation continues its long-running Sloan Research Fellowships program for 2026, honoring outstanding early-career researchers. The 2024-2025 Exemplary Pathways Grantees were announced, continuing the Foundation's decades-long commitment to diversity in STEM doctoral education. The Foundation also maintains active grantmaking in open-source technology (OSPOs), digital infrastructure, and the intersection of science and film through partnerships with organizations like Film Independent and SFFILM.

Successfully securing funding from the Alfred P. Sloan Foundation requires understanding its unique invitation-driven process. First, carefully study the specific program area that aligns with your work at sloan.org/programs — each program page details goals, strategies, recent grants, and application guidance. Your letter of inquiry (LOI) is your most critical document; it must clearly articulate why your project represents an original initiative with high expected return to society, demonstrates methodological rigor, and fills a gap not addressed by other funders. Do not request an unsolicited meeting with program directors, as they do not accept them — instead, direct a well-crafted LOI to the appropriate program director. If invited to submit a formal proposal, include abbreviated CVs (1-3 pages) for the PI and key staff, fully disclose any conflicts of interest or sources of bias (include this appendix even if there are none to report), and submit draft files as Microsoft Word documents for easy review. Be aware of exclusions: Sloan does not fund endowments, building construction/renovation, political activities, for-profit institutions, medical research, humanities research, or pre-college education (except through the NYC initiative). The review process mimics academic peer review — expect independent expert evaluation and the opportunity to respond to reviewer comments. Monitor the Open Calls page (sloan.org/grants/open-calls) for time-limited funding opportunities with specific deadlines. Finally, review the grants database (sloan.org/grants-database) to understand the types and scales of projects Sloan has historically funded in your area.