GitHub

Overview

Per Wikipedia (secondary), founded in 2008 by Tom Preston-Werner, Chris Wanstrath, P.J. Hyett and Scott Chacon, headquartered in San Francisco, and a subsidiary of Microsoft (acquisition reportedly USD 7.5B, closed 2018-10-26). Per DevOps.com (press), CEO Thomas Dohmke announced on 2025-08-11 that he would step down at the end of 2025, with GitHub moving closer to Microsoft’s CoreAI team; current leadership not verified (hence ceo blank).

Products

• Git hosting and collaboration; GitHub Actions (CI/CD); Codespaces; Pages; Gist.
• GitHub Copilot - AI coding assistant.

Scale

• Per Wikipedia (secondary): 150M users (May 2025) and over 1 billion repositories (June 2025); not verified against GitHub.

Sources

• https://en.wikipedia.org/wiki/GitHub (secondary; fetched 2026-10-05)
• https://devops.com/github-ceo-to-step-down-as-company-is-more-tightly-embraced-by-microsofts-coreai-team/ (accessed 2026-10-01)

Open items

• 2026 leadership and product changes not checked against GitHub’s blog.