GitHub CEO Thomas Dohmke has revealed he will be leaving his role at the end of the year to start a new venture. In a github blog post, Dohmke reflected on his journey from moving with his family from Germany to the United States over a decade ago following the sale of his startup to Microsoft, to leading GitHub into a new era of AI-driven development.
During his career, he has been involved in building mobile developer tools, helping steer Microsoft’s acquisition of GitHub, and later taking the helm as CEO. Under his leadership, GitHub entered what he calls “the age of Copilot and AI,” delivering major innovations for developers worldwide.
GitHub will continue its mission under Microsoft’s CoreAI division, with Dohmke staying through the end of 2025 to guide the transition.
He highlighted GitHub’s strong position in the industry, now hosting more than 1 billion repositories and forks, serving over 150 million developers, and seeing AI-related projects double in the last year alone. The company expanded its reach to the EU and Australia, achieved FedRAMP certification in the U.S., and significantly improved platform accessibility and reliability.
Dohmke also pointed to GitHub Advanced Security, which leverages AI to help teams fix vulnerabilities three times faster, and the growth of GitHub Actions into the world’s leading continuous integration service, now processing 3 billion minutes of work monthly up 64% year-over-year.
One of his most notable achievements is scaling GitHub Copilot from an autocomplete tool to a full conversational coding assistant. Today, Copilot supports over 20 million users, integrates with partners like Anthropic, Google, and OpenAI, and offers new features such as synchronous and asynchronous coding agents. Dohmke described Copilot as “the greatest change to software development since the personal computer.”
Looking ahead, he envisions a future where one billion developers are empowered by billions of AI agents, enabling anyone regardless of native language or coding experience to turn creative ideas into functioning software.
“Being your colleague and leader has been an honor,” Dohmke told GitHub staff and the developer community. “Together, we’ve bent the arc of technology for the better.”
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