Former GitHub CEO raises record $60M dev tool seed round at $300M valuation

Former GitHub CEO Thomas Dohmke has raised the largest-ever seed round for a developer tool startup, according to lead backer Felicis. His new company, Entire, has secured sixty million dollars at a three hundred million dollar valuation.

Entire provides an open source tool designed to help developers better manage code written by AI agents. Its technology consists of three core components. The first is a git-compatible database that unifies AI-produced code. Git is the distributed version control system popular with enterprises and used by platforms like GitHub and GitLab.

The second component is a universal semantic reasoning layer intended to allow multiple AI agents to work together. The final piece is an AI-native user interface built with agent-to-human collaboration in mind.

The first product from Entire is an open-source tool called Checkpoints. It automatically pairs every piece of software an AI agent submits for a project with the context that created it, including prompts and transcripts. This allows a human developer to review, search, and learn from the AI’s decision-making process.

The startup aims to help developers handle the large volumes of software created by AI coding agents. Popular open-source projects are currently overwhelmed with suggested code contributions that may or may not be “AI slop,” a term for poorly designed and potentially unusable code.

Dohmke explained the motivation behind the company, stating, “We are living through an agent boom, and now massive volumes of code are being generated faster than any human could reasonably understand. The truth is, our manual system of software production — from issues, to git repositories, to pull requests, to deployment — was never designed for the era of AI in the first place.”

Dohmke served as CEO of Microsoft’s GitHub for four years, leaving in August 2025 to found this startup. During his tenure, he oversaw the rise of the popular coding agent GitHub Copilot.

Additional investors in this seed round include Madrona, M12, Basis Set, Harry Stebbings, Jerry Yang, and Datadog founder and CEO Olivier Pomel.