GitHub
Acquired by Microsoft · 2018 · $7.5B GitHub was an AI IDEs and Editors company founded in 2008 and based in San Francisco, United States. It was acquired by Microsoft in 2018 for $7.5B.
GitHub Copilot is the most widely-adopted AI coding assistant, integrated directly into VS Code, JetBrains, and GitHub.com with agentic capabilities that turn issues into PR-ready changes. Copilot added agent mode, code review, and MCP support in 2025; deeply integrated into the Microsoft ecosystem; parent Microsoft reports Copilot as a key growth driver.
Copilot defined the AI coding assistant category with over $400M ARR and 1.8M+ paid subscribers, making it the distribution benchmark every other tool competes against.
github.com ↗·AI IDEs and Editors·
United States·acquired · MSFT 
