Sovereign Tech Agency
The Sovereign Tech Agency's core investment program for open digital base technologies that are widely used and benefit society or critical sectors: libraries, package managers, communication protocols, developer tooling, and encryption. Applicants must demonstrate the knowledge and technical skills to do the proposed work; prototype development and user-facing applications are not funded. Applications go through a multistep review of up to ~10 weeks, with published investments ranging from ~EUR 99,060 (coreutils) to ~EUR 1,436,729 (Prossimo/Rustls).
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Survival and Flourishing Fund
The Survival and Flourishing Fund maintains a rolling application for Speculation Grants and consideration in future S-Process grant rounds; applicants can apply even when no main round is open, and applying at full-round deadlines improves round eligibility.
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Spotify
Annual fund (established at €100,000 in 2022) paying maintainers of critical independent open-source projects Spotify depends on. No external application: Spotify's internal engineers nominate projects, informed by internal dependency data, and a fund committee selects recipients.
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- Active
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Stacks Endowment
The Stacks Endowment's active early-stage track supports pre-product-market-fit teams with concepts or prototypes. The program site lists Getting Started Grants as active, names Q2 grantees, and says Q3 grants open in August 2026.
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Starknet Foundation
Later-stage grants from the Starknet Foundation of up to $1M for traction-stage projects on Starknet, alongside gas sponsorships, accelerator support, and follow-on investor introductions.
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- Active
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Starknet Foundation
Early-stage grants from the Starknet Foundation of up to $25k in STRK for teams with an MVP building on Starknet, providing non-dilutive funding plus guidance.
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- Active
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Stellar Development Foundation
A community-governed program funding teams from validated concept through launch and growth on Stellar. Its Build track offers up to $150,000 in XLM across three award tracks, alongside smaller Instawards and post-launch growth support.
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- Active
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Stellar Development Foundation
SDF's venture-style investment fund for companies building on the Stellar network, distinct from the grant-based Stellar Community Fund.
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- Active
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ston.fi
An evergreen STON.fi grant program offering up to $10,000 in USDT for development work integrating its SDK or widget into DeFi products, wallets, exchanges, and games. Applications have no deadline.
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Stripe Climate
Stripe Climate lets businesses of any size fund frontier carbon removal by directing a share of revenue to Stripe's portfolio of carbon-removal purchases.
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- Active
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Subspace Foundation / Autonomys Network
Grants from the Subspace Foundation for builders of decentralized AI on the Autonomys Network, allocating up to 10% of the $AI3 token supply across five tracks — infrastructure, AI-powered dApps, research, community, and integration. Funding is milestone-based, with applications submitted through the foundation's official form.
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Sui Foundation
Sui Foundation Requests for Proposals targeting specific technical or ecosystem challenges the Foundation wants solved.
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- Active
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Tarbell Center
One-year fellowship combining AI training with nine-month newsroom placements for journalists covering AI; $60,000-$80,000 stipend for early-career fellows, $90,000-$110,000 for senior fellows.
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- Active
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Tarbell Center
Residency program for senior journalists and experienced editors doing in-depth AI reporting; $80,000+ stipend plus an upskilling component.
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- Active
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Tether
Tether's developer grants program funds local-first AI and payments infrastructure built on QVAC and Tether's open-source Wallet Development Kit (WDK), with task-based awards of roughly $1,500-$4,000 paid in USD₮ or Bitcoin. Open tasks include wallet infrastructure, browser extensions, and e-commerce integrations; there is no cap on total payouts. Applications go through the QVAC platform.
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Tezos Foundation
Rolling grants across seven verticals (core dev, technical relations, infra & tooling, arts & culture, DeFi, business development, gaming) for Tezos and Etherlink. ~4 weeks review + ~4 weeks paperwork.
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Graph Foundation
The Graph Foundation runs Grants & RFPs for developers and teams contributing to protocol, tooling, subgraph, and dApp development across the Web3 ecosystem, alongside open requests for proposals from core contributors.
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Institute for Progress (IFP)
IFP's rolling request for proposals on high-impact projects in AI resilience, AI-for-science, and institutional adaptation. Pays a $10,000 honorarium to authors of published proposals, plus $1,000 bounties for successful referrals and for new ideas that get published. No fixed deadline; those without a specific idea can join IFP's talent database instead.
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- Active
- How to apply
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