Private Equity

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Long Black Partners

Long Black Partners is a Tokyo private equity firm executing buyout, succession, and turnaround investments in Japanese mid-market companies.

Long Black Partners logo

Long Black Partners

ロングブラックパートナーズ株式会社は、全国の中堅・中小企業まで幅広く財務アドバイザリーサービスを提供しています。

General information

Firm type

Private Equity

Year founded

AUM

Undisclosed

Location

Region

Asia

Country

Japan

City

Tokyo

Corporate office

Tokyo, Japan

Frequently asked questions

What types of transactions does Long Black Partners pursue?

The firm focuses on buyout, restructuring, succession, and turnaround transactions in Japan's mid-market. This includes corporate carve-outs from larger Japanese parent companies, management-led buyouts where founders are retiring without successors, and operational turnarounds of underperforming businesses. The firm avoids auction processes, sourcing proprietary deals through regional banking and advisory networks.

How does Long Black Partners source investments?

The firm relies on a relationship-driven origination model built around Japanese regional banks, local accounting firms, and long-tenured corporate advisors. This network surfaces succession-driven opportunities and corporate carve-out mandates that rarely reach competitive bidding. The approach is designed to identify motivated sellers before any formal sale process begins.

Where does Long Black Partners typically invest geographically?

The firm's investment geography is exclusively domestic Japan, with heaviest activity concentrated in the greater Tokyo metropolitan area, Osaka, and Nagoya. These three urban-industrial corridors contain the bulk of Japan's mid-market business density. There is no known cross-border mandate or portfolio exposure outside Japan.

Who runs investment decisions at Long Black Partners?

Principal-level investment professionals and operating partners lead deal execution; however, the firm does not publicly name its senior leadership or investment committee members. This is consistent with the low-profile posture common among Japanese middle-market private equity partnerships, where deal-making authority typically resides with a small group of founding or senior partners.

Does Long Black Partners participate in fund commitments or only direct deals?

Data is limited. Based on the firm's documented strategy, activity is concentrated in direct control investments through buyout and turnaround transactions rather than fund-of-funds commitments. The firm may co-invest alongside Japanese institutional investors on a deal-by-deal basis, but there is no public record of it committing capital as a limited partner to external funds.

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