Mainstreet Investment
Private equitySeoul · Seed–Late Stage
Investment thesis
Mainstreet is an investment group based in Seoul spanning both private equity and venture capital. Operating through Mainstreet Investment and Mainstreet Ventures, the group backs exceptional entrepreneurs and companies across a range of growth stages, from seed through pre-IPO. Its approach emphasizes conviction, patience, and a deep understanding of what creates lasting value, pairing sector expertise with a disciplined, value-driven strategy for long-term capital deployment.
Source: firm website, verified Aug 3, 2026.
Frequently asked questions
- What stage does Mainstreet Investment invest at?
- Mainstreet Investment invests at the Seed, Series A, Series B, Series C, Growth, Late Stage stages.
- What sectors does Mainstreet Investment focus on?
- Mainstreet Investment focuses on Sector Agnostic.
- Where is Mainstreet Investment located?
- Mainstreet Investment is headquartered in Seoul, KR.
Similar investors
Insight Partners is a venture and growth-stage software investor featuring a large portfolio of technology companies across multiple sectors and regions.
ATEL Ventures is the venture debt arm of ATEL Capital Group, which owns and manages a portfolio of leased equipment, loans to high-growth companies, and real estate. It lends growth capital to high-growth businesses across sectors and stages.
Plaza Ventures is a Canadian investment firm focused on scaling technology companies through primary and secondary investments, spanning venture capital, private equity, and opportunistic strategies.
Cambium Grove Capital (CGC) is a multi-strategy investment firm deploying capital across venture and growth equity, real estate, and special situations, and can invest throughout the capital structure.