SJ Investment Partners

CEO Yoon Kang-hoon, a certified public accountant, oversees the firm's strategy and investment committee. The senior partnership includes Vice President Cha Min-seok and five managing directors or team leaders who source and manage portfolio positions across ICT, biotech, and platform verticals. Each team leader carries dual operating and financial backgrounds drawn from firms like Samsung and Long-Term Credit Bank.

The firm markets a value-up program that layers operational support onto its capital commitments. Portfolio CEOs, including Tripbtoz founder Jiha Jung, have stated publicly that SJ Investment Partners provides sustained back-office and strategic support after the initial investment. Managing Director Ahn Jung-ran's patent-attorney qualification suggests the firm can also offer in-house intellectual-property guidance to portfolio companies.

The firm invests from seed and start-up through expansion and late-stage rounds, with a primary focus on early-stage Korean companies. Its website emphasizes 'challenging and innovative early-stage companies' while separately listing expansion and late-stage capabilities, indicating a flexible mandate that can follow portfolio companies into growth rounds.

SJ Investment Partners targets four disclosed verticals: ICT, biotechnology, platform businesses, and tourism startups. Its confirmed portfolio includes Tripbtoz in travel-tech and Serious Pictures in entertainment content, spanning both platform and media categories. The firm does not publicly disclose negative screens or sectors it explicitly avoids.

The firm has not disclosed any affiliated philanthropic foundations, real-asset arms, or separate investment vehicles. Its public presence remains confined to the single Gangnam office, suggesting a lean operational structure without satellite entities.

SJ Investment Partners has not published a formal co-investment policy. The absence of English-language materials and reliance on a domestic email contact model suggests the firm operates primarily within a Korean LP network, but specific co-investment parameters remain undisclosed.

The firm's deal flow likely derives from the deep professional networks of its senior team, who collectively held roles at Samsung SDI, Samsung Venture Investment, Long-Term Credit Bank, and multiple securities firms. This alumni network, concentrated in Korean industrial and financial conglomerates, provides a differentiated origination channel for early-stage ICT and biotech companies.