Sovereign Tech Fund

Open all year Sovereign Tech Agency, Germany Germany

Grant

Work worth more than EUR 50,000; amount set per project

Apply on the official site

What it funds: Development and maintenance of open source base technologies that others build on
Who can apply: Maintainers of open source infrastructure (libraries, protocols, tooling), worldwide
Work must cost over EUR 50,000 and be released under an OSI or FSF licence
Not for prototypes or end user apps
When you can apply: Open all year
How to apply: Create an account and apply on the Sovereign Tech application platform
Best for: Early revenue, Growth stage
Sectors: Developer Tools Cybersecurity
Run by: International programmes

Support for International Patent Protection in Electronics and IT (SIP-EIT)Up to ₹15 lakh per invention (50% of cost) Open all year
TCOE India: Prototyping, PoC, Validation and Pilot SupportUp to 80% of cost, max ₹50 lakh per pilot Open all year
Arbitrum Audit ProgramAmount set per project (USD 10 million pool in ARB over 12 months) Open all year
DRDO Technology Development Fund (TDF)Projects up to ₹50 crore; TDF funds up to 90% of cost Open now
FLOSS/fundUp to USD 100,000 a year per project (from USD 10,000) Open all year
FOSS United Grants₹1 lakh to ₹8 lakh for projects (past grants) Open all year
US-India Science and Technology Endowment Fund (USISTEF)About ₹1.5 crore per project (2026 call) Closed

Starter opens 30 grants in full. Pro opens every one.