Angel Investing in Open Source Companies (Guide)

Published 2026-03-15 · Updated 2026-05-23 · · Angel Investing · By Sahin Boydas

How to evaluate open source companies for angel investment. Monetization models, community metrics, and what works.

Angel Investing in Open Source Companies (Guide) How to evaluate open source companies for angel investment. Monetization models, community metrics, and what works.

Written by Sahin Boydas — serial entrepreneur, 2x exited founder, and angel investor in 207+ startups including OpenAI, Anthropic, Scale AI, and Hugging Face. Ranked #1 most active angel investor in 2024 by Crunchbase.

This article is part of my ongoing series on angel investing, based on real experience from building a portfolio of 207+ investments across AI, fintech, robotics, developer tools, and more.

For more insights on startup investing, visit my blog or follow me on Twitter.

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