# Mainstreet Investment

Mainstreet Investment is a Private Equity based in Seoul, South Korea.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Seoul, South Korea
- **Region:** Asia
- **Address:** Seoul, South Korea
- **Founded:** 2018
- **Assets under management:** Undisclosed
- **Website:** www.mainst5.com
- **LinkedIn:** https://www.linkedin.com/company/mainstreet-advisors-llc

## Regulatory record

- **Reports private funds:** No

## About

Mainstreet Investment is a private equity firm focused on growth-stage and pre-IPO investments. Established in 2019, it partners with exceptional companies to drive long-term value creation through active portfolio management and strategic support. Its approach combines deep sector expertise with a disciplined investment framework. Since inception, MSI has managed approximately KRW 100 billion in cumulative commitments across 12 funds.

## People

- Soonwoo Park — CEO & Founder
- Bogi Park — Co-CEO — Head of Investments
- Chanyoung Choi — Director
- Seungsu Kang — Executive Director
- Heejin Ku — Senior Advisor

## Questions

### Who runs investment decisions at Mainstreet Investment?

The firm has not publicly named its managing partners or investment committee. No individual principals are listed on its corporate website or in South Korean financial regulatory disclosures accessible to the public. This opacity makes it impossible to attribute investment decisions to specific individuals based on available public record.

## Related profiles

- [Main Street Capital Holdings](https://altss.com/profile/main-street-capital-holdings)
- [Maintrend Capital](https://altss.com/profile/maintrend-capital)

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Last updated: 2026-08-11T15:07:19.634Z

Canonical page: https://altss.com/profile/mainstreet-investment

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