Funder: U.S. National Science Foundation
Due Dates: January 14, 2025 (Phase I) | September 2, 2025 (Phase I & II) | Annually thereafter (second Tuesday in January & first Tuesday in September)
Funding Amounts: Phase I: up to $300,000 (1 year); Phase II: up to $1,500,000 (2 years); ~30–50 awards; total program funding $27.8M
Summary: Supports the formation of new managing organizations to build sustainable open-source ecosystems (OSEs) around existing, robust open-source research products with broad societal impact.