Hiroki Yamamoto, Spiral Capital is an active investor based in Greater Tokyo Area, Japan. This profile covers what Hiroki Yamamoto backs, at which stage, and how founders can reach out in 2026.
Senior Associate at Spiral Capital in Japan, with a profile listing venture capitalist as his headline.
Hiroki Yamamoto invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A.
- Investor type
- VC
- Stages
- SeedSeries A
- Invests in
- SaaS & EnterpriseFintechArtificial Intelligence
- Location
- Greater Tokyo Area, Japan
- Typical check
- $625K
How to reach Hiroki Yamamoto
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About this profile
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Cite this page
Round Funded. "Hiroki Yamamoto." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/hiroki-yamamoto
Frequently Asked Questions
Who is Hiroki Yamamoto?
Hiroki Yamamoto, Spiral Capital is an active investor based in Greater Tokyo Area, Japan. Hiroki Yamamoto invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A.
What does Hiroki Yamamoto invest in?
Hiroki Yamamoto invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Hiroki Yamamoto invest at?
Hiroki Yamamoto typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Hiroki Yamamoto's typical check size?
Hiroki Yamamoto typically writes checks around $625K. 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.