Biggest perks
the dollar value stated1
Codex Open Source FundUp to $25,000 in API credits2
Microsoft FOSS FundUp to $12,500 each quarter3
GitHub Secure Open Source Fund$10,000 per project, plus Azure credits4
Outreachy internships$7,000 for a 3-month internship5
Neon Open Source ProgramUp to $5,000 a year in credits6
Vercel Open Source Program$3,600 in credits over 3 years7
Upstash Open Source Program$1,000 a month in credits8
Ona for Open SourceUp to $200 a month in credits
Alpha-Omega grantsSecurity grants in quarterly seasons
AWS promotional credits for open sourceAWS credits for upstream testing and CI
CircleCI open source planUp to 400,000 credits a month
Credits for open source projectsYearly credits, tiered by stars
FOSS Sustainability FundMaintenance funding, rounds
Google Summer of CodePaid summer open source projects
NGI Zero grants€5,000 to €50,000 for a first grant
Project AlexandriaRecurring annual credits
Small Development GrantsMicrogrants for NumFOCUS projects
Sovereign Tech FundWork over €50,000 funded
webclaw for OSS100,000 scraping credits a month
Every grant and fund →More grants and creditsno amount stated
When to apply
dated windows, then open nowOpen now or rolling48