Weaviate — Portfolio Company | Angel Investment by Sahin Boydas

Published 2025-11-25 · Updated 2026-05-23 · · AI Infrastructure · By Sahin Boydas

Open-source vector database for AI-powered search and applications.

Weaviate — Portfolio Company | Sahin Boydas Angel Investments Open-source vector database for AI-powered search and applications.

Written by Sahin Boydas — serial entrepreneur, 2x exited founder, and angel investor in 207+ startups including OpenAI, Anthropic, Scale AI, and Hugging Face.

About Weaviate

Open-source vector database for AI-powered search and applications. Weaviate represents the kind of company I look for as an angel investor — strong technical founders building in a large market with clear differentiation.

Sector: AI Infrastructure

Why I Invested

Weaviate caught my attention because of the team's deep domain expertise and their unique approach to solving a fundamental problem in ai infrastructure. The market opportunity is massive, and the team has the technical chops to capture it.

Investment Thesis

My investment in Weaviate reflects my broader thesis on ai infrastructure:

  1. Large addressable market — The ai infrastructure market is growing rapidly with significant room for disruption
  2. Strong technical moat — The team has built proprietary technology that's difficult to replicate
  3. Proven execution — Early traction demonstrates product-market fit and team capability
  4. Network effects — The product gets better as more users adopt it

Related Investments

Other companies in my portfolio working in ai infrastructure and adjacent spaces:

Frequently Asked Questions

What does Weaviate do?

Open-source vector database for AI-powered search and applications.

Why did Sahin Boydas invest in Weaviate?

Weaviate represents a compelling opportunity in ai infrastructure with strong technical founders, a large market, and clear product-market fit. The investment aligns with my thesis on backing category-defining companies early.

What sector is Weaviate in?

Weaviate operates in the ai infrastructure sector, which is one of the fastest-growing areas of technology investment.

How does Weaviate fit in Sahin's portfolio?

Weaviate is one of 207+ angel investments in my portfolio, which spans AI, fintech, robotics, developer tools, healthcare, and more. I look for companies with strong technical moats and large addressable markets.

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