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Pathways to Enable Secure Open-Source Ecosystems (PESOSE) is sponsored by National Science Foundation (NSF) Directorate for Computer and Information Science and Engineering (CISE). The 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.
It funds the creation of managing organizations for these ecosystems, ensuring strong governance, distributed development, and broad user communities. PESOSE also supports enhancements to the safety, security, and privacy of Open-Source Ecosystems (OSE) by addressing significant vulnerabilities.
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Pathways to Enable Secure Open-Source Ecosystems (PESOSE) | NSF - U.S. National Science Foundation Pathways to Enable Secure Open-Source Ecosystems (PESOSE) Important information for proposers and award recipients All proposals must be submitted in accordance with the requirements specified in this funding opportunity and in the Proposal & Award Policies & Procedures Guide (PAPPG) and its supplements .
All NSF grants and cooperative agreements are subject to the applicable set of NSF award terms and conditions . NSF has updated its research security policies for NSF funded projects. Supports planning, building and securing sustainable open-source ecosystems that translate research tools into widely used, resilient technologies.
These efforts strengthen U.S. innovation, economic competitiveness and national security. Supports planning, building and securing sustainable open-source ecosystems that translate research tools into widely used, resilient technologies. These efforts strengthen U.S. innovation, economic competitiveness and national security.
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.
Updates and announcements Supplemental information on PESOSE experiential activities and budget preparation The contact information below is accurate at the time of publishing. See the program page linked at the top of this solicitation for up-to-date contacts, as they may have changed. General inquiries regarding this program should be made to: PESOSE Program, telephone: (703) 292-8804, email: PESOSE@nsf.
gov Awards made through this program Browse projects funded by this program Map of recent awards made through this program Directorate for Biological Sciences (BIO) Directorate for Computer and Information Science and Engineering (CISE) Directorate for STEM Education (EDU) Directorate for Engineering (ENG) Directorate for Geosciences (GEO) Directorate for Mathematical and Physical Sciences (MPS) Directorate for Social, Behavioral and Economic Sciences (SBE) Directorate for Technology, Innovation and Partnerships (TIP)
Based on current listing details, eligibility includes: For Institutions of Higher Education (IHEs): PI, co-PI, or other Senior/Key Personnel must hold a tenured or tenure-track position, or a primary, full-time, paid appointment in a research or teaching position, or a staff leadership role in an Open-Source Program Office or equivalent position at a U.S.-based campus. For all other eligible proposing organizations: The PI must be an employee of the proposing organization who is normally resident in the U.S. and must be acting as an employee of the proposing organization while performing PI responsibilities. Applicants should confirm final requirements in the official notice before submission.
Current published award information indicates Not Specified Always verify allowable costs, matching requirements, and funding caps directly in the sponsor documentation.
The current target date is September 1, 2026. Build your timeline backwards from this date to cover registrations, approvals, attachments, and final submission checks.
Federal grant success rates typically range from 10-30%, varying by agency and program. Build a strong proposal with clear objectives, measurable outcomes, and a well-justified budget to improve your chances.
Requirements vary by sponsor, but typically include a project narrative, budget justification, organizational capability statement, and key personnel CVs. Check the official notice for the complete list of required attachments.
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Review timelines vary by funder. Federal agencies typically take 3-6 months from submission to award notification. Foundation grants may be faster, often 1-3 months. Check the program's timeline in the official solicitation for specific dates.
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