William Y. is an Investor at Entrepreneurs First, whose known portfolio counts 20 companies.
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Investment focus
- Sector
- AIHardwareHealthcareSaaS
- Focus
- AI ApplicationsBiotechDrug DiscoveryGenerative AIGenomicsLLMMachine LearningTalent Investing
Contacts
Affiliated funds' portfolios
Investor at Entrepreneurs First, whose known portfolio counts 20 companies
- Automata
- Biographica
- Phagos
- Hadean
- OLIX
- Genomines
- Seamflow
- AgileRL
- The Compression Company
- sensmore
- Repello AI
- The Bland Company
- and 8 more
Investor Profile
Founders in the listed sectors AI, Hardware, Healthcare and SaaS, and focus areas AI Applications, Biotech, Drug Discovery and Generative AI fall inside that listing.
Stage-wise, the deals at Entrepreneurs First cluster around Growth, Pre-Seed and Seed rounds.
The firm portfolio and the focus above give founders context on whether William Y. matches their raise.
Colleagues at Entrepreneurs First
Showing 20 of 48
Bill Earner
Venture Partner
Westminster, United Kingdom
Nadav Rosenberg
Venture Partner
London, United Kingdom
Charles Jolley
Venture Partner
West Hollywood, United States
Joe Falter
Venture Partner
London, United Kingdom
Chris Mairs Cbe
Venture Partner
Bradford-On-Avon, United Kingdom
Marie Steinthaler
Venture Partner
New York, United States
Hani Kareem
Angel Investor
Berlin, Germany
Skye Lam
Investor
San Francisco, United States
Johann Krämer
Founder in residence
London, United Kingdom
Akash Mathran
Investor
Kolkata, India
Chandramouly Kandachar
Founder in Residence
San Francisco, United States
Atharv Kaushik
Entrepreneur in Residence
United States
Jonny Crowther
Founder in Residence
San Francisco, United States
Hou Sheng Poh
Investor
Singapore
Martina Sardelli
Investor
United Kingdom
Aryan K.
Investor
Bengaluru, India
Madeleine Bell
Head of Operations
London, United Kingdom
Rajat Agarwal
Founder in Residence
Bengaluru, India
Cate Azais
Founder
London, United Kingdom
Jonah Gleitman
Investor
Austin, United States
Frequently asked questions
Who is William Y.?
William Y. is an accelerator partner and venture capital investor based in San Francisco, California, United States, listed as Investor at Entrepreneurs First. The known portfolio of that firm counts 20 companies. That portfolio belongs to the firm, not to William Y. personally.
What does William Y. invest in?
Listed sectors include AI, Hardware, Healthcare and SaaS; listed focus areas include AI Applications, Biotech, Drug Discovery and Generative AI. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does William Y. invest at?
Entrepreneurs First appears in Growth, Pre-Seed and Seed rounds across its known deals, and William Y. is listed there as Investor. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is William Y. listed at?
William Y. is listed as Investor at Entrepreneurs First. 48 other people in the database share a firm with William Y.
How do I contact William Y.?
A LinkedIn page is on file for William Y. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 6 September 2026 · How this data is built · Report a correction or request removal