# Jaesun Han

> Jaesun Han is a seed investor at Ground X (Daejeon) backing B2B and Blockchain. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Ground X](https://shizune.co/investors/profile/ground-x)
- Location: Daejeon, South Korea
- Total investments: 1
- Last investment: Apr 2021
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/jaesunhan/

Jaesun Han is a seed investor at Ground X in Daejeon focused on B2B and Blockchain. Jason is a serial entrepreneur and blockchain enthusiast. He received a Ph.D in EECS at KAIST in 2005. His research topics were P2P algorithms like DHT and distributed systems. In 2007, he founded NexR, the first big data and cloud computing tech startup in Korea, which was acquired by KT (Korea Telecom) 4 years later. After that, he co-foundedFuturePlay and took the role of CTO. FuturePlay is a tech-centric accelerator and investor, focusing on tech startups in APAC. He invested in dozens of startups and gave them technical mentoring. He also taught an innovative business model and IT trends course in KAIST MBA as an adjunct professor for 7 years starting in 2007.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| B2B | 1 | 100% |
| Blockchain | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Keyinside | Keyinside is a blockchain platform creator. |  | Seed | Apr 22, 2021 |  |

1 of 1 investments shown.

## About Ground X

VC Fund · Seoul, South Korea

Ground X is a technology company that creates a platform by integrating blockchain with other innovative techs in a global market. The company studies and develops blockchain technology to industrialize and to apply it to the real world. It aims to build a platform that will serve as a reliable and scalable solution to meet the needs of players inthe blockchain industry.Ground X was founded in 2018 and is headquartered in Seoul, South Korea.

2 contacts available at Ground X.

| Name | Title | Profile |
| --- | --- | --- |
| Jaesun Han | CEO | https://shizune.co/investors/profile/jaesun-han |
| Junho Cho | Head Of Technology | https://shizune.co/investors/profile/junho-cho |

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## FAQ

### What does Jaesun Han invest in?

Jaesun Han invests primarily in B2B and Blockchain startups, most often at Seed stage. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Jaesun Han last invest?

The most recent investment recorded for Jaesun Han closed in Apr 2021. Shizune tracks 1 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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