Open Source Grants

As of September 2026, Grantoria lists 4 Open Source Grants — 2 open right now, across 2 funding agencies. Award amounts range $50K to $600K. The next application deadline is March 2, 2027. All listings are free, with direct links to the official application.

Not sure which grants fit your organization? Try the Grant Finder — match in 5 questions →

4total grants
2open now
2agencies
$50K–$600Kfunding range
Mar 2next deadline
OPEN Hard to apply

Pathways to Enable Secure Open-Source Ecosystems (PESOSE)

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…

🏛 U.S. National Science Foundation 📋 CFDA 47.084 ⏰ Mar 2, 2027
View details →
OPEN Hard to apply

Findable Accessible Interoperable Reusable Open Science

The FAIROS Program seeks to support a broad range of transformative open science activities including but not limited to i.) Research, education, and socio-technical cyberinfrastructure development capacities that…

🏛 U.S. National Science Foundation 📋 CFDA 47.079 ⏰ Apr 14, 2027
View details →

Frequently asked questions

How many open source grants are available?
Grantoria currently lists 4 open source grants, of which 2 are open for applications right now. The database is refreshed daily from official federal sources (Grants.gov and SAM.gov).
When is the next deadline?
The next application deadline is March 2, 2027 — about 169 days away. Deadlines vary by program; open any grant to see its exact closing date and application window.
Who is eligible for open source grants?
Eligibility is set by each funding program, but open source grants in this category most often support: Public University, Private University, Tribal Nation and Small Business (SBA-defined). Check each grant's eligibility summary for the exact applicant types and requirements.
How much funding is available?
Award sizes range from $50K to $600K, depending on the program and applicant. Each grant shows its specific funding range where the agency has published one.
Is Grantoria free to use?
Yes — Grantoria is completely free. No account or subscription is required to browse open source grants, view deadlines and eligibility, or reach the official application.
How do I apply?
Open any grant to see its full profile — eligibility, required documents, deadlines and a direct link to the official application on the funding agency's website. You apply through the federal portal; Grantoria simply helps you find the right opportunity.

About Open Source grants

Open source grants support the development, maintenance, and advancement of freely available software and collaborative technology projects. With 4 active grants listed in this category, funding primarily flows through the U.S. National Science Foundation and National Institutes of Health, recognizing open source's critical role in research and innovation.

Most open source grants range from $50,000 to $600,000 and employ competitive selection processes. Public and private universities, along with tribal nations, are typical recipients. Support focuses on research, capacity building, and software technology initiatives. Notably, cost-sharing is not required. Filter by recipient type and support category to identify opportunities matching your organization's focus.