INTERNETWORKING AND BROADBAND CONSULTING CO.,LTD.

Company Internetworking and Broadband Consulting Co.,Ltd.

3920

JP3104940006

Software

Market Closed - Japan Exchange 01:35:59 2026-09-04 EDT			5-day change	1st Jan Change
997.00 ^JPY	+1.01%		+1.73%	-1.19%

08-13	Internetworking and Broadband Consulting Co.,Ltd. Reports Earnings Results for the Nine Months Ended June 30, 2026	CI
05-14	Internetworking and Broadband Consulting Co.,Ltd. Reports Earnings Results for the Half Year Ended March 31, 2026	CI

Business description: Internetworking and Broadband Consulting Co.,Ltd.

Internetworking and Broadband Consulting Co.,Ltd. is a Japan-based company principally engaged in the network system monitoring related business. The Company is engaged in the provision of development, sale, support and consulting services for System Answer Series, a network system information management and performance monitoring tool that monitors the operational status of information and communication networks and predictive failures. The license sales business is engaged in the sale of licenses for the System Answer Series products. The services provision business is engaged in the provision of network consulting services, network design, migration and construction services, operational consulting services, as well as various technical support services. The other product sales business is engaged in the sale of various system equipment and software associated with products and solution services to solve customer problems.

Number of employees: 81

Sales by Activity: Internetworking and Broadband Consulting Co.,Ltd.

Fiscal Period: September	2020 (JPY)	2021 (JPY)	2022 (JPY)	2023 (JPY)	2024 (JPY)
Software and Service Related Businesses	1.95B	2.01B	1.5B	1.9B	2.18B

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Geographical breakdown of sales: Internetworking and Broadband Consulting Co.,Ltd.

Fiscal Period: September	2020 (JPY)	2021 (JPY)	2022 (JPY)	2023 (JPY)	2024 (JPY)
Japan	1.95B	2.01B	1.5B	1.9B	2.18B

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Executive Committee: Internetworking and Broadband Consulting Co.,Ltd.

Manager	Title	Age	Since
Hiroyuki Kato CEO	Chief Executive Officer	59	2021-11-30
Jo Oda PSD	President	65	2025-11-30
Yuki Ota PRN	Corporate Officer/Principal	54	2018-09-30
Kazuhiko Matsumoto IRC	Investor Relations Contact	-	-
Yoshiyuki Yamamoto AUD	Comptroller/Controller/Auditor	70	2020-11-30

See INTERNETWORKING AND BROADBAND CONSULTING CO.,LTD. governance

Composition of the Board of Directors: Internetworking and Broadband Consulting Co.,Ltd.

Director	Title	Age	Since
Hiroyuki Kato CHM	Chairman	59	2025-11-30
Shigemasa Kajimoto BRD	Director/Board Member	66	2018-11-30
Jo Oda BRD	Director/Board Member	65	2020-11-30
Yuki Ota BRD	Director/Board Member	54	2020-11-30
Nobuyuki Amano BRD	Director/Board Member	61	2022-11-30
Tsuneo Higashi BRD	Director/Board Member	67	2024-11-30
Takashi Yuri BRD	Director/Board Member	66	2024-11-30

Composition of the Board of Directors

Shareholders: Internetworking and Broadband Consulting Co.,Ltd.

Name	Stocks	%	Valuation
Hiroyuki Kato 44.58 %	2,563,900	44.58 %	16 M ¥
HIKARI TSUSHIN, INC. 12.83 %	737,900	12.83 %	5 M ¥
INTERNETWORKING AND BROADBAND CONSULTING CO.,LTD. 3.375 %	194,100	3.375 %	1 M ¥
Fujio Ishimura 2.126 %	122,300	2.126 %	764 255 ¥
Shigeo Makita 1.598 %	91,900	1.598 %	574 285 ¥

List of INTERNETWORKING AND BROADBAND CONSULTING CO.,LTD. shareholders

Holdings: Internetworking and Broadband Consulting Co.,Ltd.

Name	Stocks	%	Valuation
INTERNETWORKING AND BROADBAND CONSULTING CO.,LTD. 3.37%	194,100	3.37%	1 M $

Company details: Internetworking and Broadband Consulting Co.,Ltd.

Internetworking & Broadband Consulting Co., Ltd.

1-8-8 Shinkawa

104-0033, Tokyo

https://www.ibc21.co.jp/

address Internetworking and Broadband Consulting Co.,Ltd.(3920)

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INTERNETWORKING AND BROADBAND CONSULTING CO.,LTD.	+1.01%	+1.73%	-3.58%	+61.07%	35.5M
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Weighted average by Cap.	-2.31%	-3.57%	+2.42%	+144.25%