/Investors

Mainstreet Investment

Private equity

Seoul · Seed–Late Stage

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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.

Invests inSector AgnosticAsia-PacificSeoulSouth Korea

Source: firm website, verified Aug 3, 2026.

Stage
Seed–Late Stage
HQ
Seoul, KR
Instruments
Equity
Tracked investments
1

Investments · 1 tracked

founders shown can be your intro path

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

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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.

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