ISigma Capital Corp.

Investor type

PE

Founded

2008

AUM

-

Location

Tokyo, Tokyo, Japan

Investment Ticket

$50-100 m

Investment Stage

Series B Late Stage (Series C+)

Region of investment

Asia
Investor profile last updated: 21 August, 2026

Profile

ISigma Capital Corp. is a private equity firm based in Japan, affiliated with the Marubeni Group. Founded in 2008, the firm specializes in buyout investments, particularly in situations where businesses require strategic and operational support to achieve growth. With a team of experienced professionals, ISigma Capital focuses on creating value through hands-on management and fostering long-term development in the companies it invests in. The firm differentiates itself by leveraging its deep industry knowledge and extensive network within the Marubeni Group for creating strategic synergies.

ISigma Capital invests primarily in the healthcare services, industrial, and consumer sectors. It targets businesses in need of restructuring or repositioning with investments typically ranging from $50 to $100 million. Operating within Japan, the firm supports businesses aiming to expand or optimize their operations. ISigma Capital has launched several funds, with notable ones being Fund III and Fund IV, though the specific vintage years and amounts for these funds were not disclosed. The firm maintains a keen focus on helping its portfolio companies achieve sustainable growth and operational excellence.

Notable investments by ISigma Capital include partnerships with companies such as Long Life Co. - a company focused on elder care services, Sanitary Holdings Co. - an industrial cleaning services provider, Wako Corporation - a retailer of consumer products, and special investments in recycling projects like with Tsubaki Style Group. The firm is committed to enhancing the value of its portfolio companies through strategic initiatives and comprehensive industry insights.

Industry

Consumer Products Financial Services Food and Beverage Healthcare Services Industrial Other

Contacts

Name
Title
Email
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Daisuke Nakamura Executive Vice President
Executive Vice President
-
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Eriko Hoshino Executive Vice President
Executive Vice President
-
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Investment-team contacts for ISigma Capital Corp. — including verified work emails and LinkedIn profiles — are available to Private Equity List subscribers.
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FAQs about ISigma Capital Corp.

ISigma Capital Corp. is a private equity firm. It backs companies at Series B and Late Stage (Series C+), writing tickets of $50-100 m.
ISigma Capital Corp. is located in Tokyo, Tokyo, Japan.
ISigma Capital Corp. was founded in 2008.
ISigma Capital Corp. invests in companies and startups in Consumer Products, Financial Services, Food and Beverage, Healthcare Services, Industrial, Other.
ISigma Capital Corp. invests in companies and startups in Asia.
ISigma Capital Corp. invests in companies and startups at Series B, Late Stage (Series C+).
ISigma Capital Corp. usually invests $50-100 m on average.
ISigma Capital Corp. can be reached through its website i-sigma-capital.co.jp/english/index.html. Its general enquiries address is [email protected]. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for ISigma Capital Corp. — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
Yes. Every field on this page — profile, funds, investment criteria, portfolio and investment-team contacts — is available programmatically through the Private Equity List REST API and MCP server, so AI assistants such as Claude and ChatGPT can query ISigma Capital Corp. directly instead of scraping this page. One subscription covers both the web app and machine access — see API & MCP.
Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 21 August, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.