Jay Jin, Partner at Quintstone Capital is an active investor based in United States. This profile covers what Jay Jin backs, at which stage, and how founders can reach out in 2026.
Jay Jin is a Partner at Quintstone Capital, specializing in AI-native brand growth and scaling digital brands.
Jay Jin invests in Marketing & AdTech, Artificial Intelligence and Media & Content, typically at Series A and Series B.
- Investor type
- VC
- Stages
- Series ASeries B
- Invests in
- Marketing & AdTechArtificial IntelligenceMedia & Content
- Location
- United States
- Typical check
- $2M
How to reach Jay Jin
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About this profile
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Cite this page
Round Funded. "Jay Jin." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jay-jin
Frequently Asked Questions
Who is Jay Jin?
Jay Jin, Partner at Quintstone Capital is an active investor based in United States. Jay Jin invests in Marketing & AdTech, Artificial Intelligence and Media & Content, typically at Series A and Series B.
What does Jay Jin invest in?
Jay Jin invests in Marketing & AdTech, Artificial Intelligence and Media & Content, typically at Series A and Series B. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jay Jin invest at?
Jay Jin typically invests at Series A and Series B. Lead with traction that fits the stage when you reach out.
What is Jay Jin's typical check size?
Jay Jin typically writes checks around $2M. 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.