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Funds/Asia/iSigma Capital

iSigma Capital

Private Equity FirmTokyo, Japan·Founded 2000·i-sigma-capital.co.jp

Est. dry powder

$97.6M

Raised, not yet invested

AUM

—

Not reported

Latest fund

$295M

iSigma Business Advancement Fund III

Est. cheque size

$262K–$2M

From fund sizes

Deals, last 12 months

5

Last seen investing Aug 2026

About iSigma Capital

iSigma Capital (ISC) is a Tokyo-based private equity firm operating as a wholly-owned subsidiary of Marubeni Corporation. The firm focuses on buyout investments in the lower middle market in Japan, targeting small and medium enterprises (SMEs) with enterprise value between JPY 2 billion to 20 billion. While being sector agnostic, ISC prefers to invest in sectors where Marubeni Group has a network and expertise it can leverage in supporting its investee companies. The firm supports a range of their investees businesses from sales, overseas expansion, business strategy and planning, to capital policies and business management systems. iSigma Capital is no longer active in venture capital activities while it used to manage two venture capital funds in the past.

Type
Private Equity Firm
Headquarters
Tokyo, Tokyo, Japan
Est. cheque size
$262K–$2M
Sectors
Diversified
Regions
Asia
Strategies
Buyout

Where they invest

From deals and portfolio companies on record

Most frequent rounds

  • —30

Across 31 deals

Portfolio sectors

  • Consumer Products5
  • Materials4
  • Food3
  • Chemicals2
  • Healthcare2

Across 31 companies

Portfolio countries

  • Japan31

Across 31 companies

Recent investments

Newest 5 of 31

DateCompanyRoundAmountCo-investors
  1. Aug 2026

    Long Life Group

    Aug 2026 · —

    ———
  2. Jun 2026

    Osaka Sanitary

    Jun 2026 · —

    ———
  3. Feb 2026

    MIKUNI SHOJI Co., Ltd.

    Feb 2026 · —

    —$20.1M—
  4. Jan 2026

    Otsu Medical Skin Center Co., Ltd.

    Jan 2026 · —

    ———
  5. Jan 2026

    Daibikai Medical Corporation

    Jan 2026 · —

    ———

Offices

1 location

  • Tokyo, Tokyo, JapanHQ

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Questions about iSigma Capital

How much does iSigma Capital invest per deal?

Based on the size of its funds, iSigma Capital writes estimated cheques of $262K–$2M. Lead cheques usually sit at the top of that range and follow-on cheques lower.

How much capital does iSigma Capital have left to invest?

iSigma Capital has an estimated $97.6M in dry powder: capital it has raised but not yet invested.

What has iSigma Capital invested in recently?

Recent investments include Long Life Group, Osaka Sanitary and MIKUNI SHOJI Co., Ltd.. It made 5 investments in the last 12 months.

Similar investors in Asia

Shanghai State-owned Capital Investment Leading FundChina · Cheque $31M–$100M$8.4B dry powderHHui Hua FundChina · Cheque $81.1M–$100M$7.5B dry powderYYufu Capital

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Where is iSigma Capital based?

iSigma Capital is headquartered in Tokyo, Japan.

How do I contact iSigma Capital?

Partner names, emails and LinkedIn profiles for iSigma Capital are on the Capital Atlas Pro and Team plans, which also draft outreach and track replies. Check the stages and cheque size above first, so you pitch a firm that fits your round.

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