Who funds them, what they fund and how to apply.
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.
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.
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.
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.
$10M fund jointly run by Google DeepMind, Schmidt Sciences, the Cooperative AI Foundation, ARIA, and Google.org, kick-starting independent research on multi-agent AI safety. The 2026 call closed 8 August 2026.
Schmidt Sciences funded research studying the safety of large networks of interacting AI agents, offering up to $1M over 1-2 years. The 2026 SM Apply portal closed 8 August 2026.
A $10M fund co-backed by Schmidt Sciences, Google DeepMind, ARIA, and Google.org, supporting 1-2 year research grants ($300k-$1M, or up to $300k for smaller projects) on safety risks from large-scale multi-agent AI systems. The 2026 call for proposals closed 8 August 2026.
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.
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.
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.
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.
NSF FINDERS FOUNDRY announces planning grants for K-12 educators, technologists, researchers, and parents/guardians to develop and scale evidence-based tools for an AI-driven future. Eligible teams may apply for planning grants to prepare for larger implementation projects. The deadline is May 27, 2026.
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.
Cloud/hardware/software research grants (e.g. up to 30,000 H100 80GB GPU-hours, RTX PRO 6000, or DGX Spark units) for full-time faculty at accredited PhD-granting institutions, across simulation & modeling, AI training, and AI inference/agents/systems software. Currently not accepting new applications.
Milestone-based funding framework for the Obol Collective across three tracks: contributor work on Obol Collective SQUAD Goals, retroactive funding for community workshops/meetups/onboarding sessions (proof of attendance), and open research/technical contributions advancing distributed staking. Grants are issued in OBOL tokens negotiated at USD-equivalent value; applications went through Questbook with no fixed deadlines while live. Per Obol's own docs, the program is currently paused.
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.
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.
The OpenAI Foundation's AI Resilience program funds work in bio-resilience, cyber-resilience, AI model safety, and research on AI's effects on young people. As of June 1, 2026, the Foundation said it was finalizing more than $130 million in grants and had not announced a public application route.
Status describes whether a program is running. Application methods are recorded separately. Read the funder’s terms before applying.