Yutaka Onda

ITbook Co., Ltd. engages in information technology consulting services. It operates through the following segments: Consulting, Systems Development, and Temporary Staffing. The Consulting segment offers information technology (IT) consulting to support IT systems for authorities, local governments, and private sectors. The Systems Development segment develops new systems for life insurance, foreign exchange, market data, web applications and also sells hardware. The Temporary Staffing segment dispatches engineers to manufacturing and logistics field. The company was founded on June 6, 1990 and is headquartered in Tokyo, Japan.

Tokyo Application System Co., Ltd. engages in computer systems consulting, software development, and computer equipment and software maintenance. The company was founded on July 26, 1973 and is headquartered in Niigata, Japan.

Part of ITbook Holdings Co., Ltd., CMJapan Corp. is a Japanese company that provides comprehensive business support services such as on-demand live distribution, video production, website production, web system construction, and promotion. The company is based in Tokyo, Japan. The company's support system is tailored to accurately respond to their clients' video utilization needs. CMJapan was acquired by ITbook Co., Ltd., part of ITbook Holdings Co., Ltd. on March 21, 2013 for $0.57 million.

Cosmo Engineering KK engages in software development and construction, provision of computer aided design (CAD) introduction support, and network business proposal services. The company was founded on July 2, 2004 and is headquartered in Niigata, Japan.

i-NEXT KK engages in engineer dispatch business and paid employment placement business. The company was founded on April 22, 2019 and is headquartered in Osaka, Japan.