Stephen Yiu
Co-founder, Managing Partner, Chief Investment Officer at Blue Whale Growth Fund
London, England
Stephen Yiu, Co-founder, Managing Partner, Chief Investment Officer at Blue Whale Growth Fund is an active investor based in London, England. This profile covers what Stephen Yiu backs, at which stage, and how founders can reach out in 2026.
Co-founder, Managing Partner and Chief Investment Officer of Blue Whale Growth Fund, co-founded with Peter Hargreaves; named FE fundinfo Alpha Manager Hall of Fame 2025.
Stephen Yiu invests in SaaS & Enterprise and Consumer & Retail, typically at Late Stage Venture.
- Investor type
- VC
- Stages
- Late Stage Venture
- Invests in
- SaaS & EnterpriseConsumer & Retail
- Location
- London, England
- Typical check
- $7M
How to reach Stephen Yiu
Angels and operators like Stephen Yiu reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
Reach active investors like this one
About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Cite this page
Round Funded. "Stephen Yiu." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/stephen-yiu
Frequently Asked Questions
Who is Stephen Yiu?
Stephen Yiu, Co-founder, Managing Partner, Chief Investment Officer at Blue Whale Growth Fund is an active investor based in London, England. Stephen Yiu invests in SaaS & Enterprise and Consumer & Retail, typically at Late Stage Venture.
What does Stephen Yiu invest in?
Stephen Yiu invests in SaaS & Enterprise and Consumer & Retail, typically at Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Stephen Yiu invest at?
Stephen Yiu typically invests at Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Stephen Yiu's typical check size?
Stephen Yiu typically writes checks around $7M. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.