Grants for OSS Maintainers
14 funding opportunities for open source software maintainers and infrastructure projects.
Infrastructure & Critical Software
For critical open source infrastructure and security
Sovereign Tech Fund
| Organization: German Federal Government | Amount: Variable (€50,000-€300,000 typical) | Deadline: Rolling applications |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Funding for critical open source infrastructure and technologies
Core Infrastructure Initiative
| Organization: Linux Foundation | Amount: Variable | Deadline: Rolling |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Funding critical open source infrastructure projects
Open Source Security Foundation (OpenSSF)
| Organization: Linux Foundation | Amount: Variable | Deadline: Varies by initiative |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Improving security of open source software
Public Interest Technology
For open internet, privacy, and public benefit projects
Prototype Fund (Germany)
| Organization: German Federal Ministry of Education and Research | Amount: €47,500 over 6 months | Deadline: Twice yearly |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Funding for public interest technology projects
Mozilla Grants
| Organization: Mozilla Foundation | Amount: $10,000-$50,000 (Common Awards) | Deadline: Varies by program |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Support for open internet and privacy projects
Open Technology Fund
| Organization: OTF | Amount: Variable (typically $10,000-$900,000) | Deadline: Rolling applications |
Domains: Open Tech / OSS / Internet
Supporting open technologies for global internet freedom
NLnet Foundation Grants
| Organization: NLnet Foundation | Amount: €5,000-€50,000 | Deadline: Rolling (8 calls per year) |
Domains: Open Tech / OSS / Internet
Supporting open source projects contributing to open internet
FUTO Grants
| Organization: FUTO | Amount: Variable | Deadline: Rolling |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Supporting people-controlled technology
Ecosystem-Specific Grants
For specific programming languages or scientific computing
NumFOCUS Small Development Grants
| Organization: NumFOCUS | Amount: $2,000-$10,000 | Deadline: Twice yearly |
Domains: Open Tech / OSS / Internet, Computer Science & AI, Data & Math
For scientific computing open source projects
Python Software Foundation Grants
| Organization: Python Software Foundation | Amount: Typically $500-$5,000 | Deadline: Rolling applications |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Support for Python community projects and events
Rust Foundation Grants
| Organization: Rust Foundation | Amount: Variable | Deadline: Varies |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Supporting the Rust programming language ecosystem
Google Season of Docs
| Organization: Google | Amount: Variable (project-based) | Deadline: Varies annually |
Domains: Open Tech / OSS / Internet
Supporting technical writers and documentation for open source
Unitary Fund Microgrants
| Organization: Unitary Fund | Amount: $4,000 | Deadline: Rolling applications |
Domains: Computer Science & AI, Engineering & Physical Sciences
For quantum technology open source projects
Community Funding Platforms
Ongoing support from the community
GitHub Sponsors
| Organization: GitHub | Amount: Variable (community-funded) | Deadline: Rolling applications |
Domains: Open Tech / OSS / Internet, Computer Science & AI
Community funding platform for open source developers