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. Since inception, MSI has managed approximately
KRW 100 billion in cumulative commitments across 12 funds, including commitments from leading
financial institutions in Korea.
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
2025
Appointed Bogi Park as Co-CEO and Head of Investments, strengthening private equity leadership
2026
Chanyoung Choi joined as Director, deepening deal execution across private equity coverage
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.
