Ford Foundation
A collaborative research-grants initiative — Ford Foundation with the Alfred P. Sloan Foundation, Mozilla's Open Source Support programme, Omidyar Network, and Open Society Foundations (fiscally hosted by Open Collective Foundation for the 2020 round) — funding research on the open-source code and digital infrastructure underpinning the internet, including how to sustain maintainer communities and address systemic inequities in the field. Ran across a 2018 wave (managed jointly by Ford and Sloan) and a larger 2020 collaborative wave.
- Status
- Ended
- How to apply
- Not recorded
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
Mozilla Foundation
Mozilla Open Source Support's Foundational Technology track funded open-source software that Mozilla relies on in its products, infrastructure, or internal work. MOSS has been on indefinite hiatus since the 2020 Mozilla restructuring and is not accepting applications.
- Status
- Paused
- How to apply
- Not recorded
Mozilla Foundation
A one-time Mozilla Open Source Support (MOSS) track funding open-source projects responding to the COVID-19 pandemic (contact tracing/health data tools, mutual-aid logistics, medical hardware). Made at least 6 awards totaling roughly $214,964, including to OpenMRS, Careables, Open Food Network, and VentMon. Part of the broader MOSS program, now on indefinite hiatus.
- Status
- Ended
- How to apply
- Not recorded
Mozilla Foundation
The Secure Open Source (SOS) track of Mozilla Open Source Support paid for third-party security audits of widely used open-source software and the remedial work to fix problems found. Of the awards with a disclosed dollar amount, sizes ranged from $15,000 to $187,500; many entries in Mozilla's award directory do not disclose an amount. Mozilla selected candidates directly rather than running an open application process. The broader MOSS program is on indefinite hiatus and not accepting new applications following Mozilla's 2020 restructuring.
- Status
- Ended
- How to apply
- Not recorded
Mozilla Foundation
The Seed Awards track of Mozilla Open Source Support (MOSS) gave early-stage funding to promising open-source projects aligned with Mozilla's mission. Made at least 22 awards totaling roughly $150,000, including to CryptPad, F-Droid, Open Food Facts, FreeBSD, and Kiwi TCMS. Part of the broader MOSS program, now on indefinite hiatus.
- Status
- Ended
- How to apply
- Not recorded
Mozilla Foundation
The Mozilla Technology Fund (MTF) gave awards of up to $50,000 plus a 12-month mentorship cohort to open-source projects tackling a themed public-interest technology challenge each round. The latest sourced cohort is the 2024 AI and Environmental Justice round; no later public call is on file.
- Status
- Paused
- How to apply
- Not recorded
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
NLnet Foundation
Dated record of NLnet's August 2026 Open Call, which closed 1 August 2026. The standing vehicle for later odd-month calls is NLnet General Grants.
- Status
- Ended
- How to apply
- In rounds
NumFOCUS
Small grants to help NumFOCUS's fiscally sponsored and affiliated open-source scientific computing projects improve usability, grow their communities, and speed release cycles. Calls for proposals normally run 3x/year; applications are currently closed while NumFOCUS updates its financial and administrative systems.
- Status
- Paused
- How to apply
- Not recorded
Renaissance Philanthropy
Multi-donor fund administered by Renaissance Philanthropy, seeded with support from the Chan Zuckerberg Initiative, Biohub, and Wellcome Trust, funding open-source software infrastructure for science. The inaugural 2026 OS4LS call is closed. The apply page shows no open opportunities as of 2026-08-29.
- Status
- Paused
- How to apply
- Not recorded
OS4Science
Inaugural OS4LS RFA of the Open Source for Science Fund. LOI due 2026-06-08; full proposals due 2026-07-21. Submissions are closed. Award notifications expected October 2026.
- Status
- Paused
- How to apply
- In rounds
OpenStreetMap Foundation
OpenStreetMap Foundation's 2020 Microgrants pilot helped volunteers overcome financial barriers to OpenStreetMap work. The official program page identifies it as the 2020 project; later board discussions have not established a new public intake under this program.
- Status
- Ended
- How to apply
- Not recorded
NLnet Foundation
EUR 10M Horizon Europe cascade-funding programme led by NLnet with FSFE and other partners, offering EUR 5,000-50,000 R&D grants with rolling calls every two months (2026-2030) plus a scale-up track, across open-tech sovereignty/privacy, internet resilience, environmental impact, and supply-chain transparency. NLnet currently describes the fund as being set up; the first recorded call is closed and the next window is not yet confirmed on the Restack page.
- Status
- Paused
- How to apply
- In rounds