# Tom Preston-Werner

**Source:** https://www.startuphub.ai/people/tom-preston-werner
**Profile type:** Person

## About

Tom Preston-Werner is an entrepreneur, technologist, and investor who transformed how the world builds software. He is best known as the co-founder and former CEO of GitHub, which he co-founded in 2008. He also created key open-source tools like Jekyll, Semantic Versioning (SemVer), and TOML. Currently, he founded Preston-Werner Ventures (PWV), an early-stage investment firm backing software and AI-driven companies.

## Key facts

- **Slug:** tom-preston-werner
- **Website:** http://tom.preston-werner.com
- **Title:** Co-founder & General Partner at Preston-Werner Ventures
- **Social:**
  - LinkedIn: https://www.linkedin.com/in/mojombo/
  - Twitter: https://x.com/mojombo
  - GitHub: https://github.com/mojombo

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