Open Source Security Foundation
OpenSSF project that funds security work on critical open-source projects, foundations, and ecosystem services that use an OSI-approved license. Applications follow a four-quarter seasonal calendar: submissions in January, April, July, and October, then a month of co-design and a month of decision and disbursement. Recipients publish monthly reports and join monthly strategy roundtables. A March 2026 coalition investment of $12.5 million is managed with OpenSSF; Alpha-Omega reports more than 70 grants totaling over $20 million.
- Status
- Active
- How to apply
- In rounds
National Institutes of Health
NIH PAR-27-024 funds late-stage optimization and sustainable dissemination of research technologies and software via the RM1 mechanism. Recurring receipt dates run through 2029: 29 Sep 2026, 28 Jan 2027, 28 May 2027, 28 Jan 2028, 26 May 2028, and 29 Jan 2029.
- Status
- Active
- How to apply
- In rounds
Internet Society
The Internet Society Foundation's Common Good Cyber Fund supports nonprofits that maintain public-interest cybersecurity infrastructure and protect vulnerable or high-risk communities. The 2026 call will award at least $3.5 million through two-year operating grants.
- Status
- Active
- How to apply
- In rounds
eBPF Foundation
The eBPF Foundation's Academic Research Grant Program funds academic research benefiting the eBPF community. It awarded five $50,000 grants in 2024, and its 2026 cycle accepted applications from June 15 through July 15 for awards up to $50,000; submissions are now under review.
- Status
- Active
- How to apply
- In rounds
FreeCAD Project Association
Quarterly grants (EUR 1,500-5,000, EUR 40,000 reserved for 2026) to accelerate FreeCAD development, prioritizing documentation, testing, release-cycle work, and ecosystem infrastructure.
- Status
- Active
- How to apply
- In rounds
Free and Open Source Software Sustainability Fund
OTF's fund for the sustainability of free and open source software used for internet freedom, making targeted awards (from $7k/month up to $400k over 24 months) for maintenance, interoperability, security, and resilience of FOSS tools. Awards run through a two-stage competitive process (concept note, then proposal with advisory council review) as deliverable-based performance contracts; supported projects include F-Droid, DEfO, and Mailvelope, and an application round ran March-May 2026.
- Status
- Active
- How to apply
- In rounds
National Institutes of Health
NIH ITCR RFA-CA-27-019 funds early-stage open-source informatics tools for cancer research via the U01 mechanism. The solicitation has four receipt dates: 1 Jul 2026, 19 Oct 2026, 11 Jun 2027, and 19 Oct 2027.
- Status
- Active
- How to apply
- In rounds
Linux Foundation
Event registration scholarships that award a complimentary pass to people who could not otherwise attend Linux Foundation events. Reviewers select from two tracks: applicants from traditionally underrepresented or marginalized groups, and active open-source community members who cannot get employer funding. Recipients may receive up to two scholarships per calendar year; travel is a separate Travel Fund application.
- Status
- Active
- How to apply
- In rounds
Linux Foundation
Standing travel fund for open-source developers and community members who could not otherwise attend Linux Foundation events, with emphasis on historically underrepresented groups and people of lower socioeconomic status. Approved support covers coach airfare, ground transport to and from the airport, and lodging for the event dates plus one prior night. Applications are submitted from the LF Individual Dashboard; each event sets its own deadline.
- Status
- Active
- How to apply
- In rounds
NLnet Foundation
NLnet provides grants of €5,000 to €50,000 for free and open-source software, hardware, data, and standards. Open calls are paused through the Open Internet Stack transition. New calls open 3 September 2026 and close 3 November 2026 at 12:00 CEST. Later deadlines fall on the third day of every odd month.
- Status
- Active
- How to apply
- In rounds
Nominet
Nominet's DNS Fund funds open-source DNS projects and maintainers to improve security, sustainability, and resilience of critical internet infrastructure. The 2026 call closed on August 17, 2026. Nominet is taking alerts for the next invitation.
- Status
- Active
- How to apply
- In rounds
Confidential Computing Consortium
The Confidential Computing Consortium's 2026 Research Fund supported practical academic research in confidential computing. Applications closed June 1 and the two recipients were announced July 1.
- Status
- Ended
- How to apply
- In rounds
Google Chrome
A Google Chrome-run fund, fiscally hosted by Open Source Collective, that paid out to 10 open-source projects in the "advanced apps" space (progressive web apps and related web-platform capabilities) in a single distribution window in October 2022.
- Status
- Ended
- How to apply
- In rounds
Drupal Association
The Drupal Association offered needs-based scholarships and community grants tied to DrupalCon Atlanta 2025 (24-27 March 2025). Applications for that event are closed; this record is the event-specific call, not a standing year-round intake.
- Status
- Ended
- How to apply
- In rounds
Meta Llama Impact Grants
Meta's second Llama Impact Grants call awarded more than $1.5 million to 10 companies, startups, and universities using open-source Llama models for social and economic impact. Applications for that round closed in November 2024, and recipients were announced in April 2025.
- Status
- Ended
- How to apply
- In rounds
NLnet Foundation
NLnet-run fund supporting service portability and personal freedom in hosted cloud/fediverse services (e.g. PeerTube, Mastodon, email, VPN, private cloud on NixOS). NLnet published the twelfth call as the fund's final intake; it closed 1 August 2026 and no further applications are accepted.
- Status
- Ended
- How to apply
- In rounds
NLnet Foundation
NLnet-run fund supporting free/open-source privacy-preserving digital payment infrastructure built on GNU Taler. NLnet published the fourteenth call as the fund's final intake; it closed 1 August 2026 and no further applications are accepted.
- Status
- Ended
- How to apply
- In rounds
NLnet Foundation
An NLnet-managed fund within the EU Next Generation Internet initiative that awarded small-to-medium R&D grants (EUR 5,000-50,000 for first proposals) to deliver, mature, and scale new internet commons across the full technology stack. NLnet published the thirteenth call as the fund's final intake; no further applications are sought.
- Status
- Ended
- How to apply
- In rounds