No. 26-506 · U.S. National Science Foundation
Pathways to Enable Secure Open-Source Ecosystems (PESOSE)
- Award range
- Not specified
- Expected awards
- ~60
- Application deadline
- Mar 2, 2027
- Posted
- Feb 19, 2026
- Last verified
- 3 days ago
At a glance
AI summaryThe program funds projects that build strong, sustainable, and secure open-source ecosystems, including planning and community-building, expanding governance and operations, and improving safety, security, and privacy. Eligible applicants include U.S.-based institutions of higher education, nonprofit and for-profit organizations, state and local governments, Tribal Nations, and certain federal agencies and FFRDCs. It expects 40 to 60 awards, with up to $300,000 for Track 1 and up to $1,500,000 for Tracks 2 and 3. There is no stated cost-share requirement. For nonprofit and for-profit applicants, the organization must be U.S.-based and U.S.-owned and controlled.
AI-generated summary — verify against the announcement
What it funds
Official description from grants.gov
The Pathways to Enable Secure Open-Source Ecosystems (PESOSE) program supports the translation of open-source science and engineering-focused research products into safe and sustainable ecosystems that address national and societal challenges. Open-source tools such as software, hardware, machine learning models, languages, and data platforms are designed to be shared as they are publicly-accessible and modifiable. These tools spark innovation in critical fields as varied as artificial intelligence (AI) and cloud computing, banking, healthcare, research, education, next-gen manufacturing, mobility, and National security (including cybersecurity). PESOSE supports the creation of managing organizations for these ecosystems, ensuring strong governance, distributed development, and broad user communities across academia, industry, and government. PESOSE also supports enhancements to the safety, security, and privacy of Open-Source Ecosystems (OSE) by addressing significant vulnerabilities, both technical and socio-technical, to improve the resistance of the ecosystem against threats. This solicitation seeks three types of proposals, allowing teams to propose specific activities to: 1) scope and plan the establishment of an OSE, 2) establish and expand a sustainable OSE based on a robust, promising open-source product that meets an emergent societal or national need, and 3) improve the safety, security, and privacy of an existing OSE and its products.
Who can apply
- Others
Program history
USASpending.govAssistance listing 47.041 · Engineering
Real awards this federal program has made — the whole assistance listing (47.041), not just this notice.
| Fiscal year | Awards | Median award | Middle half |
|---|---|---|---|
| FY 2026 (so far) | 604 | $407,608 | $200,000 – $550,000 |
| FY 2025 | 1,537 | $389,666 | $282,237 – $549,621 |
| FY 2024 | 1,761 | — | — |
| FY 2023 | 1,862 | — | — |
| FY 2022 | 2,238 | — | — |
| FY 2021 | 2,436 | — | — |
Dollar figures are based on the 1,000 most recent awards we store, not all 10,438 — award counts are complete.
- NORTH CAROLINA STATE UNIVERSITY $7,674,141 · FY 2026
- VANDERBILT UNIVERSITY $4,000,000 · FY 2025
- NORTH DAKOTA STATE UNIVERSITY $3,848,048 · FY 2025
- CALIFORNIA INSTITUTE OF TECHNOLOGY $3,000,000 · FY 2025
- NORTHWESTERN UNIVERSITY $3,000,000 · FY 2025
Source: USASpending.gov · refreshed Aug 19, 2026
Assistance listing 47.049 · Mathematical and Physical Sciences
Real awards this federal program has made — the whole assistance listing (47.049), not just this notice.
| Fiscal year | Awards | Median award | Middle half |
|---|---|---|---|
| FY 2026 (so far) | 762 | $299,931 | $121,337 – $500,000 |
| FY 2025 | 2,247 | $482,485 | $249,935 – $627,333 |
| FY 2024 | 2,571 | — | — |
| FY 2023 | 2,745 | — | — |
| FY 2022 | 2,640 | — | — |
| FY 2021 | 2,567 | — | — |
Dollar figures are based on the 1,000 most recent awards we store, not all 13,532 — award counts are complete.
- UNIVERSITY OF CALIFORNIA, LOS ANGELES $7,039,283 · FY 2026
- WEST VIRGINIA UNIVERSITY RESEARCH CORPORATION $5,950,041 · FY 2026
- UNIVERSITY OF WISCONSIN SYSTEM $4,950,000 · FY 2026
- AUBURN UNIVERSITY $2,998,544 · FY 2025
- THE JOHNS HOPKINS UNIVERSITY $2,831,003 · FY 2025
Source: USASpending.gov · refreshed Aug 21, 2026
Assistance listing 47.050 · Geosciences
Real awards this federal program has made — the whole assistance listing (47.050), not just this notice.
| Fiscal year | Awards | Median award | Middle half |
|---|---|---|---|
| FY 2026 (so far) | 628 | $389,288 | $209,626 – $543,580 |
| FY 2025 | 920 | $368,108 | $202,000 – $593,558 |
| FY 2024 | 1,251 | — | — |
| FY 2023 | 1,285 | — | — |
| FY 2022 | 1,315 | — | — |
| FY 2021 | 1,504 | — | — |
Dollar figures are based on the 1,000 most recent awards we store, not all 6,903 — award counts are complete.
- EARTHSCOPE CONSORTIUM INC. $59,141,331 · FY 2025
- UNIVERSITY OF CALIFORNIA SAN DIEGO $6,457,844 · FY 2025
- REGENTS OF THE UNIVERSITY OF MICHIGAN $6,000,000 · FY 2025
- CALIFORNIA INSTITUTE OF TECHNOLOGY $4,780,833 · FY 2026
- UNIVERSITY OF ROCHESTER $2,999,998 · FY 2026
Source: USASpending.gov · refreshed Sep 4, 2026
Assistance listing 47.070 · Computer and Information Science and Engineering
Real awards this federal program has made — the whole assistance listing (47.070), not just this notice.
| Fiscal year | Awards | Median award | Middle half |
|---|---|---|---|
| FY 2026 (so far) | 1,087 | $380,991 | $250,087 – $530,369 |
| FY 2025 | 1,560 | — | — |
| FY 2024 | 1,919 | — | — |
| FY 2023 | 2,178 | — | — |
| FY 2022 | 2,045 | — | — |
| FY 2021 | 1,910 | — | — |
Dollar figures are based on the 1,000 most recent awards we store, not all 10,699 — award counts are complete.
- UNIVERSITY OF CALIFORNIA, SAN DIEGO $11,000,000 · FY 2026
- CARNEGIE-MELLON UNIVERSITY $10,000,000 · FY 2026
- THE MORGRIDGE INSTITUTE FOR RESEARCH, INC. $9,000,000 · FY 2026
- UNIVERSITY OF CALIFORNIA, LOS ANGELES $9,000,000 · FY 2026
- UNIVERSITY OF TENNESSEE $9,000,000 · FY 2026
Source: USASpending.gov · refreshed Sep 4, 2026
Assistance listing 47.074 · Biological Sciences
Real awards this federal program has made — the whole assistance listing (47.074), not just this notice.
| Fiscal year | Awards | Median award | Middle half |
|---|---|---|---|
| FY 2026 (so far) | 573 | $566,575 | $308,334 – $894,239 |
| FY 2025 | 826 | $569,960 | $350,857 – $899,906 |
| FY 2024 | 1,075 | — | — |
| FY 2023 | 1,137 | — | — |
| FY 2022 | 1,240 | — | — |
| FY 2021 | 1,243 | — | — |
Dollar figures are based on the 1,000 most recent awards we store, not all 6,094 — award counts are complete.
- WILLIAM MARSH RICE UNIVERSITY $2,600,000 · FY 2026
- UNIVERSITY OF MARYLAND, COLLEGE PARK $2,432,713 · FY 2025
- CLEMSON UNIVERSITY $2,400,000 · FY 2025
- THE PENNSYLVANIA STATE UNIVERSITY $2,200,000 · FY 2025
- THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK $2,000,000 · FY 2026
Source: USASpending.gov · refreshed Sep 4, 2026
Assistance listing 47.075 · Social, Behavioral, and Economic Sciences
Real awards this federal program has made — the whole assistance listing (47.075), not just this notice.
| Fiscal year | Awards | Median award | Middle half |
|---|---|---|---|
| FY 2026 (so far) | 113 | $528,600 | $237,499 – $775,500 |
| FY 2025 | 559 | $210,247 | $37,874 – $406,540 |
| FY 2024 | 839 | $193,570 | $94,373 – $399,241 |
| FY 2023 | 869 | — | — |
| FY 2022 | 895 | — | — |
| FY 2021 | 958 | — | — |
Dollar figures are based on the 1,000 most recent awards we store, not all 4,233 — award counts are complete.
- REGENTS OF THE UNIVERSITY OF MICHIGAN $10,999,998 · FY 2024
- UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION, THE $8,399,997 · FY 2024
- NATIONAL OPINION RESEARCH CENTER $7,998,747 · FY 2025
- ARIZONA STATE UNIVERSITY $6,430,848 · FY 2026
- REGENTS OF THE UNIVERSITY OF MINNESOTA $5,200,000 · FY 2024
Source: USASpending.gov · refreshed Sep 4, 2026
Assistance listing 47.076 · STEM Education (formerly Education and Human Resources)
Real awards this federal program has made — the whole assistance listing (47.076), not just this notice.
| Fiscal year | Awards | Median award | Middle half |
|---|---|---|---|
| FY 2026 (so far) | 542 | $400,000 | $193,868 – $750,000 |
| FY 2025 | 805 | $632,661 | $336,311 – $1,300,000 |
| FY 2024 | 1,421 | — | — |
| FY 2023 | 1,305 | — | — |
| FY 2022 | 1,344 | — | — |
| FY 2021 | 1,191 | — | — |
Dollar figures are based on the 1,000 most recent awards we store, not all 6,608 — award counts are complete.
- PRESIDENT AND FELLOWS OF HARVARD COLLEGE $31,161,280 · FY 2026
- MASSACHUSETTS INSTITUTE OF TECHNOLOGY $23,000,000 · FY 2026
- GEORGIA TECH RESEARCH CORP $16,902,789 · FY 2025
- REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE $15,387,498 · FY 2026
- UNIVERSITY OF CALIFORNIA, SAN DIEGO $14,088,417 · FY 2025
Source: USASpending.gov · refreshed Sep 4, 2026
Assistance listing 47.084 · NSF Technology, Innovation, and Partnerships
Real awards this federal program has made — the whole assistance listing (47.084), not just this notice.
| Fiscal year | Awards | Median award | Middle half |
|---|---|---|---|
| FY 2026 (so far) | 380 | $304,939 | $50,000 – $1,240,759 |
| FY 2025 | 931 | $305,000 | $77,375 – $1,120,119 |
| FY 2024 | 1,061 | — | — |
| FY 2023 | 1,118 | — | — |
| FY 2022 | 642 | — | — |
| FY 2021 | 289 | — | — |
Dollar figures are based on the 1,000 most recent awards we store, not all 4,421 — award counts are complete.
- THE UNIVERSITY OF CENTRAL FLORIDA BOARD OF TRUSTEES $20,000,000 · FY 2026
- ACTIVATE GLOBAL INC $14,978,985 · FY 2025
- CORNELL UNIVERSITY $8,000,000 · FY 2025
- OREGON STATE UNIVERSITY $7,500,000 · FY 2026
- TRUSTEES OF INDIANA UNIVERSITY $7,500,000 · FY 2026
Source: USASpending.gov · refreshed Sep 6, 2026
Change history
Since we first indexed it- Sep 5, 2026 Eligibility text updated
- Sep 1, 2026 Title updated
- Sep 1, 2026 Deadline moved: Sep 1, 2026 → Mar 2, 2027
- Jul 25, 2026 Grant announcement document replaced