Kosuke Tatsumi
Vice President at SPARX Asset Management Co., Ltd.
Greater Tokyo Area, Japan
Kosuke Tatsumi, Vice President at SPARX Asset Management Co., Ltd. is an active investor based in Greater Tokyo Area, Japan. This profile covers what Kosuke Tatsumi backs, at which stage, and how founders can reach out in 2026.
Kosuke Tatsumi is a Vice President at SPARX Asset Management Co., Ltd., focusing on the SPARX Mirai Creation Fund.
Kosuke Tatsumi invests in SaaS & Enterprise, Artificial Intelligence and Hardware & Deep Tech, typically at Seed, Series A and Early Stage Venture.
- Investor type
- VC
- Stages
- SeedSeries AEarly Stage Venture
- Invests in
- SaaS & EnterpriseArtificial IntelligenceHardware & Deep Tech
- Location
- Greater Tokyo Area, Japan
- Typical check
- $500K
How to reach Kosuke Tatsumi
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Round Funded. "Kosuke Tatsumi." Round Funded investor database, updated November 3, 2026.
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Frequently Asked Questions
Who is Kosuke Tatsumi?
Kosuke Tatsumi, Vice President at SPARX Asset Management Co., Ltd. is an active investor based in Greater Tokyo Area, Japan. Kosuke Tatsumi invests in SaaS & Enterprise, Artificial Intelligence and Hardware & Deep Tech, typically at Seed, Series A and Early Stage Venture.
What does Kosuke Tatsumi invest in?
Kosuke Tatsumi invests in SaaS & Enterprise, Artificial Intelligence and Hardware & Deep Tech, typically at Seed, Series A and Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Kosuke Tatsumi invest at?
Kosuke Tatsumi typically invests at Seed, Series A and Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Kosuke Tatsumi's typical check size?
Kosuke Tatsumi typically writes checks around $500K. 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.