sahin.io

Investors

Y Combinator

San Francisco, CA · Founded 2005 · $5B+ AUM · Pre-Seed, Seed

88Alignment

The startup accelerator. Backs founders at the earliest stage with standard $500K deal. Community-driven with batch model. Make something people want.

  • All sectors
  • AI
  • SaaS
  • Fintech
  • Health
  • Hardware
5000+Total Investments
50Shared with Sahin
GlobalGeo Focus
88/100Alignment

Investment Strategy

Stages
Pre-Seed, Seed
Geography
Global
Recent Trends
AI-heavy recent batches (50%+ AI companies). Expanded international presence. Growing continuity fund for follow-on investments in breakout companies.

Sector Breakdown

  • AI/ML35%
  • SaaS20%
  • Fintech15%
  • Health10%
  • Hardware5%
  • Other15%

Sector mix as described in Y Combinator’s profile.

Notable Portfolio Companies

★ = Also in Sahin’s portfolio

This page collects the public evidence behind that overlap. Every company below has its own source-backed directory of investors, and Y Combinator appears in each of those directories with a cited public source. The list is evidence-based and may not be complete: it includes only companies in Sahin Boydas’s public portfolio where a cited source reports Y Combinator as an investor. It is not a cap table, and it carries no deal terms.

Profile

Focus: All sectors, AI, SaaS, Fintech, Health, Hardware

Headquarters: San Francisco, CA

Founded: 2005

Profile fields come from Y Combinator’s own public description as recorded in this site’s investor reference data. They describe the firm, not any portfolio company.

Companies

41 companies in the public portfolio, listed A–Z with each company's public one-liner, Category, Sub-Category, and current public status. Every card links to the company profile and to the company's full directory of investors.

Categories

Counted across the 41 companies above; a company that carries more than one Category is counted in each. 3 companies carry no Category.

Sources

One reviewed public source per company. Each link opens this site’s source reference, which names the publisher and then links out, so no third-party page is republished here.

Other investors on this site that are in some of the same companies. The number is how many of the 41 companies above also list that investor.

Frequently asked questions

How many companies in Sahin Boydas’s public portfolio is Y Combinator in?

Y Combinator is a investor in 41 companies that are also in Sahin Boydas’s public portfolio, as of October 2026: Scale AI, Kalshi, Replit, Inc., Magic and Front, and 36 more.

Which Categories do the companies with Y Combinator as a investor belong to?

The 41 companies span 13 Categories: AI (17), Software (11), Robotics (6), Aerospace (4), Climate (4), Energy (4), Fintech (4), Hardware (4), Biotech (3), Health (2), Other (2), Semiconductors (2) and Space (1). Each Category links to every portfolio company in it.

What does this Y Combinator page not say?

It is not a cap table and not a complete list of Y Combinator’s investments. It lists only companies in Sahin Boydas’s public portfolio where a cited public source reports Y Combinator as an investor, and it carries no deal terms.

All investors · Browse the public portfolio