Headquarters
San Francisco, CAFounded
2008CEO / Founder
Thomas DohmkeEmployees
5001-10000Funding
Acquired — $350MProducts
1 product listedAvg. AI Score
7.5/10Website
github.comProfile updated
GitHub is a web-based platform for version control and software development collaboration, founded in 2008 by Tom Preston-Werner, Chris Wanstrath, PJ Hyett, and Scott Chacon. Headquartered in San Francisco, California, it is built on top of the Git version control system and provides hosting for code repositories alongside tools for issue tracking, pull requests, and project management.
GitHub's core product is its repository hosting service, which supports both public and private repositories. The platform includes GitHub Actions for CI/CD automation, GitHub Copilot (an AI-assisted code completion tool developed in partnership with OpenAI), GitHub Packages for package hosting, and GitHub Pages for static site hosting. It serves a broad range of users from individual developers to large enterprises, and hosts repositories for major open-source projects including the Linux kernel, React, and VS Code.
Microsoft acquired GitHub in June 2018 for approximately $7.5 billion in Microsoft stock. Prior to the acquisition, GitHub had raised around $350 million in venture funding, including a $250 million Series A from Andreessen Horowitz in 2012. Thomas Dohmke became CEO in 2021, succeeding Nat Friedman. GitHub Copilot, launched in 2021 and made generally available in 2022, became a significant revenue driver offered as a paid subscription product for individual developers and enterprises.
Dated, source-cited figures. Estimates are marked.
All products by GitHub reviewed by our AI panel of experts.
Six independent reviewer personalities assessed GitHub's product on their own terms. They disagreed by 3.7 points — The Skeptic was the hardest to convince, The Decision Maker the most positive.
Averaged across 1 reviewed product in our catalog. Scores are out of 10.
Who GitHub competes with, and how they differ.
GitLab bundles source control, CI/CD, security scanning and project planning into one self-hostable DevOps platform, versus GitHub's SaaS-first, marketplace/ecosystem-driven approach to the same workflow.
1 product reviewed on TopReviewedAtlassian's Bitbucket targets teams already standardized on Jira and Trello, bundling git hosting tightly into that suite rather than competing on GitHub's open-source network effects and Actions marketplace.
Microsoft's own Azure DevOps is a separate git-hosting and CI/CD suite aimed at enterprise .NET/Azure shops with Boards/Repos/Pipelines, overlapping with GitHub Enterprise despite common ownership.
Key milestones in GitHub's history, with sources.
GitHub surpasses 100 million developers
GitHub CEO Thomas Dohmke announced on the GitHub Blog that the platform had officially passed 100 million developers, two years ahead of a 2019 internal goal.
github.blogMicrosoft: GitHub reaches $1B annual recurring revenue
CEO Satya Nadella announced on the fourth anniversary of the acquisition that GitHub had reached $1 billion in annual recurring revenue and 90 million+ active users, up from 28 million at close.
techcrunch.comGitHub Copilot becomes generally available
GitHub Copilot exited technical preview and became available to all developers; GitHub reported 1.2 million signups during the preview and Copilot suggesting ~40% of newly written code in enabled files.
github.blogGitHub Copilot launches in technical preview
GitHub introduced Copilot, an AI pair programmer built on OpenAI Codex, as a limited technical preview priced at $10/month (free for students and open-source maintainers).
github.blogGitHub acquires npm
GitHub, then-CEO Nat Friedman announced GitHub had signed an agreement to acquire npm Inc., the company behind the JavaScript package registry used by roughly 12 million developers.
github.blogGitHub acquires Dependabot
GitHub acquired Dependabot, the automated dependency-update tool for Ruby, JavaScript, Python and PHP projects, and integrated it directly into GitHub security features, announced at GitHub Satellite.
winbuzzer.comMicrosoft completes $7.5B acquisition of GitHub
Microsoft's all-stock acquisition of GitHub officially closed after EU regulatory approval; GitHub then had 31 million developers on the platform.
techcrunch.comGitHub unveils GitHub Actions
GitHub launched GitHub Actions, a workflow automation and CI/CD tool that lets developers run code directly on GitHub rather than only host it, initially rolled out in staged batches.
techcrunch.comMicrosoft announces acquisition of GitHub for $7.5B
Microsoft announced an agreement to acquire GitHub, then used by more than 28 million developers, for $7.5 billion in an all-stock deal; Nat Friedman became GitHub CEO.
news.microsoft.comSeries B — $250M led by Sequoia Capital
GitHub raised a $250 million Series B led by Sequoia Capital with participation from Andreessen Horowitz, Thrive Capital and IVP, bringing total outside funding to $350 million at a valuation reported by WSJ near $2 billion.
techcrunch.comSeries A — $100M led by Andreessen Horowitz
GitHub took its first outside investment, a $100 million Series A led by Andreessen Horowitz, at a reported $750 million valuation; the round funded GitHub Enterprise development.
techcrunch.comGitHub launches publicly
GitHub launched as a web-based hosting service for Git repositories, founded by Tom Preston-Werner, Chris Wanstrath, PJ Hyett and Scott Chacon in San Francisco.
en.wikipedia.orgBrowse multi-perspective AI panel reviews across hundreds of AI tools, agents, and platforms. Find the right software with insights from CTO, Developer, Marketer, Finance, and User perspectives.