Jaeseung Y., Venture Partner at Sopoong Ventures is an active investor based in Seoul, South Korea. This profile covers what Jaeseung Y. backs, at which stage, and how founders can reach out in 2026.
Jaeseung Y. is a Venture Partner at Sopoong Ventures and the founder of Tumblbug.
Jaeseung Y. invests in Consumer & Retail, typically at Seed and Series A.
- Location
- Seoul, South Korea
- Typical check
- $625K
What does Jaeseung Y. invest in?
- Investor type
- VC
- Invests in
- Consumer & Retail
Where is Jaeseung Y. based?
Jaeseung Y. is based in Seoul, South Korea.
- Browse more startup investors near Jaeseung Y.:
- Startup investors in SeoulStartup investors in South Korea
How to reach Jaeseung Y.
Angels and operators like Jaeseung Y. 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.
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About this profile
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Cite this page
Round Funded. "Jaeseung Y.." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jaeseung-y
Frequently Asked Questions
Who is Jaeseung Y.?
Jaeseung Y., Venture Partner at Sopoong Ventures is an active investor based in Seoul, South Korea. Jaeseung Y. invests in Consumer & Retail, typically at Seed and Series A.
What does Jaeseung Y. invest in?
Jaeseung Y. invests in Consumer & Retail, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jaeseung Y. invest at?
Jaeseung Y. typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Jaeseung Y.'s typical check size?
Jaeseung Y. typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
Where is Jaeseung Y. based?
Jaeseung Y. is based in Seoul, South Korea.
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.
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