# Internet Initiative Japan

Internet Initiative Japan is a Corporate Investor based in Tokyo, Japan.

## Overview

- **Organization type:** Corporate Investor
- **Headquarters:** Tokyo, Japan
- **Region:** Asia
- **Address:** Tokyo, Japan
- **Founded:** 1992
- **Assets under management:** Undisclosed
- **Website:** www.iij.ad.jp
- **LinkedIn:** https://www.linkedin.com/company/internet-initiative-japan
- **Wikidata:** Q1667971

## Regulatory record

- **Reports private funds:** No

## About

Internet Initiative Japan was established in December 1992 by Koichi Suzuki. The company provides internet connectivity, develops telecommunications equipment, and maintains data-center assets in Japan. IIJ holds positions in DeCurret Holdings and real-estate holdings that include Iidabashi Grand Bloom in Tokyo plus the Shiroi and Matsue data-center campuses. Geographic focus remains Japan. Partnerships include NTT Inc. as a major shareholder, KDDI Corporation at an 11.5 percent stake, and Mitsubishi Corporation on AI cloud projects. Starlink distribution adds another operational line. The firm lists on the Tokyo Stock Exchange and employs staff covered by its internal pension vehicle. No additional offices outside Japan appear in records. IIJ participates in the Internet Society and the Internet Engineering Task Force. Koichi Suzuki retains a 6 percent combined stake and serves as chairman of the Telecom Services Association. Governance ties the operating company directly to its pension and real-asset holdings without external family-office separation.

## Sectors

- Infrastructure

## People

- Koichi Suzuki — Founder, Chairman, and CEO

## Questions

### Who runs investment decisions at Internet Initiative Japan?

Koichi Suzuki, founder, chairman, and CEO, oversees capital allocation. The Japan Computer Information Service Employee's Pension Fund manages the disclosed retirement assets.

### Does Internet Initiative Japan participate in fund commitments or only direct deals?

IIJ executes direct holdings and joint ventures. Confirmed positions include DeCurret Holdings and data-center real estate.

### What is Internet Initiative Japan's known posture on co-investments alongside external GPs?

IIJ forms joint ventures with strategic partners such as Mitsubishi Corporation and maintains shareholdings with NTT and KDDI.

### How is Internet Initiative Japan related to NTT Inc.?

NTT Inc. is a major shareholder and strategic partner in network operations.

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Last updated: 2026-06-03T20:00:00.000Z

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