The world's first
Truly sustainable funding sustainable funding for critical OSS through a community‑driven endowment
$693Kendowment fund
61total donors
44members ($1K+ donors)
Provides a stable, long-term funding model, independent of volatile corporate and personal budgets.
Supports the critical but underfunded open source projects that conventional models miss.
A lean, digital-first, community-led organization designed for maximum impact and transparency.
The global open-source community shares many parallels with how the best universities work, and we are thrilled to adopt their private endowment model to sustainably fund OSS maintainers.
ex-General Partner at Runa Capital
Open source underpins the critical infrastructure of the global tech ecosystem, and the community-driven Endowment is a wonderful initiative to pursue its long-term sustainability.
Co-founder, HashiCorp
The Open Source Endowment is so obvious in hindsight, it's high time we brought this model to bear on the Open Source sustainability crisis.
Head of Open Source, Sentry
The Endowment is a very promising project. I am happy to join and pretty excited to see how it contributes to the FOSS funding ecosystem.
CTO, Zerodha
I've been part of the OSS community for 20+ years, consistently reflecting on the huge and unfair imbalance between the value open source creates and its sustainability. The Endowment is an efficient way to give back and address this issue.
Co-founder, Nginx
Keeping open source sustainable is a global challenge, and the Open Source Endowment provides a very promising long-term way to fund essential yet non-commercializable OSS. I'm excited to support it as a founding donor.
Founder & CEO, n8n
Maintainer burnout and lack of funding often lead to bugs and serious security incidents, as seen with Log4Shell, the XZ Utils backdoor, and Heartbleed. The unsustainable state of OSS financing makes critical infrastructure more fragile and puts our world at ever-growing risk.
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Successfully used by leading universities for centuries, endowments spend only investment returns from donations to advance their causes, weathering economic and political volatility.
We are building a community-led endowment fund that leverages "open source alumni" to sustainably fund the most critical OSS projects. It is an open nonprofit, and everybody is welcome to join — every contribution matters.
Employs a data-driven, goal-based strategy, ensuring every donation makes a measurable difference.
Supports the long-term health of the global open source supply chain, not of specific countries, companies, or ecosystems.
Provides open data, public governance processes, and clear accountability in all funding decisions and operations.
Empowers the community to shape key strategic decisions with a focus on individuals over companies.
A broad funding base from diverse sources makes every contribution meaningful and fosters community governance.
Remains independent from political or corporate influence, ensuring unbiased, mission-driven funding for the public good.
1
Individuals, companies, and foundations donate to the Open Source Endowment, forming its permanent principal, which is preserved in perpetuity.
2
The endowment principal is invested in a low-risk portfolio that generates sustainable annual returns. We target a ~5% spend rate, typical for U.S. universities.
3
We distribute grants based on open, data-driven inputs, and our model is co-developed with the Endowment's Members and the open source community.
4
Supported projects are tracked for accountability, refining strategy, and maximizing OSE's positive impact. The grantmaking model is continuously refined.
Co-founder, HashiCorp
Founder & CTO, Elastic
Founder & CEO, n8n
ex General Partner, Runa Capital
Head of Open Source, Sentry
Co-founder, Nginx
Founder, cURL
CTO, Zerodha
ex CEO, GitHub
Co-founder & CTO, ClickHouse
Creator, Vue.js & Vite
Chair, Open Source Initiative
Co-founder & CEO, Mastra
CTO, Linux Foundation
Co-founder & CEO, Supabase