We pursue rigorous investments to maximize lasting value for our investors.
About
A Disciplined Approach to Growth Equity
Mainstreet Investment is a private equity firm focused on growth-stage and pre-IPO investments.
Established in 2019, MSI partners with exceptional companies to drive long-term value creation
through active portfolio management and strategic support. Our approach combines deep sector expertise
with a disciplined investment framework, targeting opportunities where we can drive meaningful
operational and strategic improvements.
Growth EquityPre-IPOBuyoutMezzanine
Focus Areas
Investment Focus Areas
Healthcare & Life Sciences
Transforming healthcare delivery through technology innovation — medical AI, digital health, and biomedical engineering at the intersection of technology and patient care.
Deep Tech & Advanced Materials
Foundational technologies in semiconductors, advanced materials, and precision components where proprietary know-how creates durable competitive advantages.
Consumer & Lifestyle Brands
Global consumer brands poised for operational transformation and international expansion, combining strategic repositioning with hands-on operational support.
Digital Platforms & Software
Technology platforms that connect ecosystems and create network effects at scale, with global operating experience across major technology markets.
Content & Media
Content-driven businesses spanning entertainment, IP, and digital media, leveraging extensive networks across global studios, publishers, and distribution.
History
Our Journey
2019
Founded as a private equity firm focused on technology and growth investments
2020
Launched first project funds; Established subsidiary Mainstreet Ventures
2021
Expanded fund portfolio with digital life and AgTech focused investment vehicles
2022
Formed strategic partnerships with institutional co-investors across technology sectors
2024
Appointed Bogi Park as Co-CEO; Strengthened deal execution with Chanyoung Choi joining as MD
2025
Cumulative AUM surpassing KRW 196 billion across 27+ funds with 20+ institutional LPs
Process
Investment Process
01
Deal Sourcing & Screening
Identifying companies with strong fundamentals, innovative business models, and scalable market potential.
02
Analysis & Due Diligence
Comprehensive analysis through preliminary and full investment committee review, followed by thorough due diligence.
03
Post-Investment & Value Creation
Systematic portfolio management focused on enhancing enterprise value through strategic support.
04
Exit
Pursuing optimal exit strategies including IPO, M&A, secondary sales, and other flexible approaches.
