Corporate Data

(As of March 31, 2025)

Corporate Name	Internet Initiative Japan Inc.
Address	Iidabashi Grand Bloom 2-10-2 Fujimi, Chiyoda-ku, Tokyo 102-0071, JAPAN Phone: +81-3-5205-6500 info@iij.ad.jp Map
Established	December 3, 1992
Capital	JPY23,037 million (non-consolidated basis)
Number of Employees	Number of Employees 5,221 (consolidated basis), 2,971 (non-consolidated basis)
Business Objectives	Provision of Internet connectivity and WAN service, network-related services, network systems construction, operation and maintenance, development and sales of tele communication equipment
Stock Listing	The Prime Market of the Tokyo Stock Exchange (From April 4, 2022. ticker symbol: 3774)
Major Shareholders	NTT, Inc. / NTT DOCOMO BUSINESS, Inc. (*1) KDDI Corporation ITOCHU Techno-Solutions Corporation Koichi Suzuki
Financial Institutions	Sumitomo Mitsui Banking Corporation Mizuho Bank, Ltd. MUFG Bank, Ltd. Mitsubishi UFJ Trust and Banking Corporation

1. (*1)Indicated with the company name as of July 1, 2025.

Consolidated Financial Data

(FY2024, under International Financial Reporting Standards (IFRS))

Revenues	JPY316.8 billion
Operating Profit	JPY30.1 billion
Profit attributable to owners of the parent	JPY19.9 billion

Board Members

(As of June 26, 2025)

Member of the Board, Representative Director	Koichi Suzuki Yasuhiko Taniwaki
Member of the Board	Satoshi Murabayashi Koichi Kitamura Akihisa Watai Junichi Shimagami Takashi Tsukamoto (part time)(*1) Kazuo Tsukuda (part time) (*1) Yoichiro Iwama (part time) (*1) Atsushi Okamoto (part time)(*1) Kaori Tonosu (part time)(*1)

1. (*1)All part-time directors are independent outside directors.

Company Auditors

(As of June 26, 2025)

Company Auditors	Masayoshi Tobita Masako Tanaka Takashi Michishita (part time)(*2) Kumiko Aso (part time) (*2)

1. (*2)Outside statutory auditors

Executive Officers

(As of April 1, 2025)

Chairman	Koichi Suzuki (Co-CEO)
President	Yasuhiko Taniwaki (Co-CEO & COO)
Executive Vice President	Satoshi Murabayashi Koichi Kitamura Akihisa Watai (CFO) Junichi Shimagami (CTO)
Senior Managing Executive Officer	Tadashi Kawashima Naoshi Yoneyama (CIO)
Managing Executive Officer	Makoto Ajisaka Yoshikazu Yamai Koichi Maruyama Masakazu Tachikui Akira Sumiya (CISO,CRO,CPO(*3)) Takenori Onishi Shigeo Yabuki Ken Araki Hajime Shironouchi Takahiro Ide Naoshi Someya Takahiko Hiyama
Executive Officer	Masami Kawamata Kaori Kawakami Hiroo Shirasaki Takeshi Hatano Mamoru Saito Kentaro Kurosawa Kaichiro Naka

1. (*3) CISO: Chief Information Security Officer, CRO: Chief Risk Officer, CPO: Chief Privacy Officer