Open 26-506 CFDA 47.041;47.049;47.050;47.070;47.074;47.075;47.076;47.084 Discretionary

Pathways to Enable Secure Open-Source Ecosystems

Posted by U.S. National Science Foundation

Opportunity snapshot. This Grants.gov announcement — Pathways to Enable Secure Open-Source Ecosystems — is cataloged under number 26-506 and tied to CFDA assistance listing 47.041;47.049;47.050;47.070;47.074;47.075;47.076;47.084, posted by U.S. National Science Foundation. Grants.gov currently shows the opportunity as open, first posted on February 19, 2026. The funding category is Discretionary, delivered as a grant.

Award economics. The award range on file is Varies by applicant. The agency has projected $40.0 million in total estimated funding for this announcement. It expects to issue 60 awards. If the agency funds the expected 60 awards from the $40.0 million estimated pool, the average award works out to roughly $667,000. Cost sharing is not required, so applicants do not need to commit matching funds to be competitive on this opportunity. Federal award ranges are often upper bounds; actual allocations reflect program appropriations, the strength of the applicant pool, and the evaluation committee's scoring.

Deadline and action path. Applications close on September 1, 2026 — roughly 87 days from today. Every Grants.gov submission requires an active SAM.gov registration and a Unique Entity ID. Review the Eligibility section below carefully — federal eligibility categories (nonprofit, state or local government, tribal, individual, educational institution, small business) have distinct registration and reporting requirements. Pre-application outreach to the listed agency contact is permitted and often welcomed — it helps clarify scope and scoring priorities.

Award Range

Varies by applicant

Close Date

September 1, 2026

Posted

February 19, 2026

Est. Total Funding

$40,000,000

Expected Awards

60

Instrument

Grant

Description

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 planthe establishment of an OSE, 2)establishand 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.

Eligibility

25

Official Listing on Grants.gov

View full details, application forms, and submission instructions.

View on Grants.gov

Agency Contact

NSF grants.gov support<br/>grantsgovsupport@nsf.gov

Key Dates

Posted February 19, 2026
Close Date September 1, 2026
Archive Date April 2, 2037
Last Updated February 19, 2026

Frequently Asked Questions

What is this grant opportunity?
This is a federal funding opportunity titled "Pathways to Enable Secure Open-Source Ecosystems", offered by U.S. National Science Foundation. It is associated with CFDA program 47.041;47.049;47.050;47.070;47.074;47.075;47.076;47.084. 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 tha...
Is this opportunity still open?
Yes, this opportunity is currently open for applications. The closing date is September 1, 2026.
How much funding is available?
The award range for this opportunity is Varies by applicant. Total estimated funding: $40,000,000. Expected number of awards: 60.
How do I apply?
Applications for federal grant opportunities are typically submitted through Grants.gov. Visit the official listing at grants.gov for application instructions, required documents, and submission deadlines.

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Disclaimer: This information is sourced from Grants.gov and SAM.gov and is for informational purposes only. Opportunity details, deadlines, and eligibility requirements change frequently. Always verify current information directly on Grants.gov before applying. PlainGrants is not affiliated with any federal agency.

Read our methodology — how this data is sourced, computed, and verified.

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