foropensource
Which companies sponsor the most open source projects?
35 companies with 351 publicly visible sponsorships of open source projects and maintainers, counted from GitHub Sponsors and Open Collective. Expand a company to see who they sponsor.
What this measures: breadth, not dollars. GitHub Sponsors hides amounts, so a company sponsoring five projects at $10,000 each ranks below one sponsoring fifty at $10. It also excludes support that doesn't flow through these platforms: direct grants, foundation memberships, employing maintainers, and free products (tracked separately in the offers directory).
#1 CodeRabbit — 99 sponsored
- Yusuke Wada
- Ofer Shaal
- Taku Amano
- Avelino (awesome-go)
- Gina Häußge
- Sindre Sorhus (awesome-electron)
- Franck Nijhof (python-wled)
- jdx (mise)
- George Nachman (iTerm2)
- Lars Kappert (reveal-md)
- Andrew Gallant (ripgrep)
- The Warzone 2100 Project
- Evan You (launch-editor)
- Λlisue (rs-metrics-process)
- patak
- Eduardo San Martin Morote (pinia)
- Luke Vella (rallly)
- Sébastien Lorber (react-async-hook)
- PatrickJS (angular-hmr)
- Vinh Nguyen (vtcode)
- François Best
- Sebastián Ramírez (fastapi)
- Paulus Schoutsen
- ryoppippi (ccusage)
- David Anson (markdownlint)
- Lea Anthony (clir)
- Jan De Dobbeleer (oh-my-posh)
- Herrington Darkholme (typescript-repl)
- Elio Struyf (vscode-front-matter)
- Colin McDonnell (zod)
- Almog Gavra
- Daniel Williams
- bautistaaa
- Justin Dalrymple (gitbeaker)
- Utkarsh Dalal
- Hayden Bleasel (ultracite)
- NV Access
- Erik Rasmussen (redux-form)
- Kazuki Yamada (repomix)
- Remi Wg (Next-js-Boilerplate)
- nuno maduro (phpinsights)
- Stijn Van Hulle
- ESLint (eslint)
- jsDelivr
- Neovim (neovim)
- RezaSi
- Theo Browne
- xyflow
- Mateusz Burzyński (react-textarea-autosize)
- Jeffrey
- ahujasid (ableton-mcp)
- Santosh Yadav
- Testcontainers (testcontainers-java)
- ShakaCode (react_on_rails)
- Zachary Rice (gitleaks)
- curl
- pnpm
- Jaewoong Eum (Balloon)
- KM Koushik
- pest
- Nir Diamant
- Swastik Baranwal
- Daniel Roe (beasties)
- Laforge Thomas
- Tommy D. Rossi (genql)
- SaltyAom (memoirist)
- Fabian Hiller (valibot)
- ニケちゃん / nikechan
- Stefan Terdell (zod-to-json-schema)
- nrs
- Pranav Hari
- zoey
- Aman Varshney (create-better-t-stack)
- Nico
- Rohit Ghumare (kubectl-mcp-server)
- mockoon
- nocodb
- Punyapal Shah
- Ngô Quốc Đạt
- detekt
- Fiber (fiber)
- coolLabs
- Analysis Tools
- Flow-Launcher (Flow.Launcher)
- Zach Nugent
- Galacean (engine)
- grim
- tRPC (trpc)
- Sahaj Jain (lumen)
- APITable
- RoadRunner (roadrunner)
- Memos (memos)
- ZenStack (zenstack)
- Affaan Mustafa
- GitHub Star History
- webadderall
- Biome (biome)
- Cua (cua)
- Vicinae HQ (vicinae)
#2 OpenAI — 50 sponsored
- Kat Marchán (miette)
- Ned Batchelder (coveragepy)
- Eric Huss
- Sean McArthur (reqwest)
- Brett Cannon (python-launcher)
- Sebastian Thiel (gitoxide)
- Diggory Hardy
- Rain
- Ingvar Stepanyan (serde-wasm-bindgen)
- Joe Birr-Pixton (graviola)
- Arpad Borsos (rust-cache)
- Koudai Aono (datamodel-code-generator)
- Bernát Gábor
- Jonas Platte (eyeball)
- Stephen Rosen
- Hugo van Kemenade (em-keyboard)
- Zac Sweers (MoshiX)
- Kevin Stillhammer
- messense (aliyundrive-webdav)
- anthony sottile (pyupgrade)
- David Tolnay (cxx)
- Herrington Darkholme (typescript-repl)
- Guillaume Gomez (sysinfo)
- Jacob Pratt (deranged)
- Pierre Sassoulas (django-zxcvbn-password-validator)
- aio-libs (aiohttp)
- Ofek Lev (pyapp)
- Nikolai Vazquez (divan)
- Rich Felker
- tqdm developers (tqdm)
- Weihang Lo
- tree-sitter
- Encode (django-rest-framework)
- Tokio (tokio)
- pnpm
- jyn
- Prettier (prettier)
- python-trio (trio)
- lcnr
- Jiahao XU
- Telepresence (telepresence)
- clap-rs (clap)
- Taiki Endo (cargo-llvm-cov)
- rust-analyzer (rowan)
- Frank Hoffmann (inline-snapshot)
- Richard Si
- rkyv
- Kar Petrosyan (hishel)
- Pydantic (pydantic)
- python-websockets (websockets)
#3 Sentry — 30 sponsored
- Evan Phoenix (benchmark-ips)
- Tatsuhiko Miyagawa (cpanminus)
- Nicholas C. Zakas
- Joe Hildebrand (node-cbor)
- Ondřej Mirtes
- Ionel Cristian Mărieș (pytest-benchmark)
- Celery (celery)
- Piotr Murach (tty-prompt)
- Adam Johnson (django-cors-headers)
- Donavon West (use-persisted-state)
- Blake Embrey (change-case)
- Matt Holt (caddy)
- Fabio Spampinato (cash)
- Samuel Giddins (cocoapods-dependencies)
- David Rodríguez (byebug)
- Bootstrap (bootstrap)
- Trevor Brindle (envinfo)
- Kiran Abburi (react-slick)
- Dawson Botsford (essential-eth)
- Federico Zivolo (floating-ui)
- typicode (json-server)
- Pedro Brochado
- Markdown it! (markdown-it)
- Natural Intelligence (fast-xml-parser)
- PHPStan (phpstan)
- Yarn (yarn)
- Gerasimos (Makis) Maropoulos (iris)
- Robert Craigie (pyright-python)
- swc
- Donny/강동윤 (rust-pmutil)
#4 Emerge Tools — 17 sponsored
- Connor Tumbleson (Apktool)
- Joe Fabisevich
- Marcin Krzyzanowski (CryptoSwift)
- William Vabrinskas
- Wei Wang (Kingfisher)
- Matt Kiazyk
- Gabriel Peal
- Christos Kasketis
- Pedro Gómez
- David Hérault (serverless-offline)
- Antoine van der Lee (appstoreconnect-swift-sdk)
- Sergio Sastre Flórez
- AudioKit
- Bruno Rocha
- Vapor (vapor)
- Periphery (periphery)
- detekt
#5 GitBook — 17 sponsored
- isaacs (node-glob)
- Andrey Sitnik (nanoid)
- Mike Ralphson
- Sasha Koss (typesaurus)
- Sindre Sorhus (awesome-electron)
- Titus (remark)
- Evgeny (ajv)
- Kevin Jahns (lib0)
- ESLint (eslint)
- Cheerio (cheerio)
- Babel (babel)
- Node.js (node)
- unified
- Prettier (prettier)
- CSS Tools (sanitize.css)
- Fuma Nama (fumadocs)
- Drizzle Team (drizzle-orm)
#6 Tailscale — 15 sponsored
- Dominik Honnef (go-tools)
- Marijn Haverbeke (acorn)
- Kevin Burke (nacl)
- Matt Holt (caddy)
- Matt Layher (netlink)
- Daniel Martí (sh)
- ESLint (eslint)
- David Bond
- Ari Kalfus (ansible_galaxy_collection)
- nhooyr (websocket)
- Preact (preact)
- axios
- Poimandres (zustand)
- WiX Toolset (wix)
- j-modernc-org
#7 Convex — 13 sponsored
- Yusuke Wada
- Rain
- David Hewitt (pythonize)
- David Tolnay (cxx)
- Colin McDonnell (zod)
- xyflow
- Tokio (tokio)
- Aman Varshney (create-better-t-stack)
- ArkType (arktype)
- Robel Estifanos
- Vite (vite)
- Micha Mailänder
- Biome (biome)
#8 GitHub — 12 sponsored
- Asherah Connor (comrak)
- Jason A. Donenfeld
- Sindre Sorhus (awesome-electron)
- Fatih Kadir Akın (vue-wait)
- Emily Lovell
- Homebrew (ruby-macho)
- Processing Foundation (p5.js)
- Cody Thomas
- Tanner Linsley (query)
- Exercism (cli)
- Knut Sveidqvist (mermaid)
- SAML-Toolkits (php-saml)
#9 Healthchecks.io — 12 sponsored
- Jeff Forcier (releases)
- Jason A. Donenfeld
- Django (django)
- Daniel Stenberg
- Daniele Varrazzo (py-setproctitle)
- 🇺🇦 Sviatoslav Sydorenko (Святослав Сидоренко)
- Léon Gersen (noUiSlider)
- Python (cpython)
- Sebastian Scheibner (signal-cli)
- Cure53 (DOMPurify)
- Mastodon (mastodon)
- TypedDjango (django-stubs)
#10 Weblate — 11 sponsored · $2,230 via Open Collective
- scoder (lupa)
- Xe Iaso
- Selenium (selenium)
- pytest
- Django Crispy Forms (django-crispy-forms)
- Pyparsing (pyparsing)
- Python Social Auth (social-app-django)
- TypedDjango (django-stubs)
- Celery (celery)
- pre-commit
- wemake-python-styleguide
#11 PostHog — 9 sponsored
#12 Greptile — 7 sponsored
- Evan You (launch-editor)
- Sebastián Ramírez (fastapi)
- Neovim (neovim)
- coolLabs
- Vite (vite)
- tRPC (trpc)
- Affaan Mustafa
#13 1Password — 5 sponsored
- Tony Arcieri (cool.io)
- Andrew Gallant (ripgrep)
- Guillaume Gomez (sysinfo)
- Tokio (tokio)
- rust-analyzer (rowan)
#14 Datadog — 5 sponsored
- Ned Batchelder (coveragepy)
- Sean McArthur (reqwest)
- shirou (gopsutil)
- Lars Kappert (reveal-md)
- GolangCI (golangci-lint)
#15 elmah.io — 5 sponsored
- Patrik Svensson (dotnet-example)
- Gérald Barré (Meziantou.Analyzer)
- Mads Kristensen (BundlerMinifier)
- Dustin Moris Gorski
- ZZZ Projects (html-agility-pack)
#16 Keygen — 5 sponsored
- Caelan
- Vladimir Dementyev (logidze)
- Lea Anthony (clir)
- ahonn
- Amin Ya (setup-cpp)
#17 Nx Cloud — 5 sponsored
- Brandon Roberts (ngrx-store-freeze)
- Tanner Linsley (query)
- pnpm
- Node-API (N-API) for Rust (napi-rs)
- Vite (vite)
#18 Chromatic — 4 sponsored
- Budi Utomo (docker-android)
- Mock Service Worker (msw)
- Open Web Docs
- Vitest (vitest)
#19 Screenshotbot — 4 sponsored
#20 Tuist — 4 sponsored
- Kishikawa Katsumi (KeychainAccess)
- Cameron Cooke (XcodeBuildMCP)
- 1024jp (GzipSwift)
- Charles Pisciotta (xcbeautify)
#21 Vercel — 4 sponsored
- Daishi Kato (waku)
- Evan You (launch-editor)
- Rafael Almeida
- pilcrow (lucia)
#22 Crowdin — 3 sponsored
- kazuya kawaguchi (gunshi)
- Jan Amann (next-intl)
- Remi Wg (Next-js-Boilerplate)
#24 Transloadit — 2 sponsored
- Colin McDonnell (zod)
- Vite (vite)
#25 Amazon Web Services — 1 sponsored
#26 Azure Pipelines — 1 sponsored
- WiX Toolset (wix)
#27 CDN77 — 1 sponsored
#28 Cirrus Labs — 1 sponsored
#29 Mintlify — 1 sponsored
#30 OpenPanel — 1 sponsored
#31 Sauce Labs — 1 sponsored
- danielpaulus (go-ios)
#32 SignPath — 1 sponsored
- WiX Toolset (wix)
#33 TestingBot — 1 sponsored
- Testcontainers (testcontainers-java)
#34 Tolgee — 1 sponsored
#35 Upstash — 1 sponsored
Data: company-sponsorships.csv (CC BY 4.0). Missing a company's sponsorships? Open a pull request.