Corporate Information >
Mr. Kurimoto joined OPT Inc. (now renamed DIGITAL HOLDINGS, INC.) in 2010. After working as a programmatic advertising consultant focusing on the human resources industry, he served as General Manager of the Sales Division and General Manager of the Programmatic Advertising Consulting Division, before being appointed an Executive Officer of OPT Inc. in April 2019, responsible for the account domain.
Mr. Ishiwata joined Recruit Co., Ltd. (now renamed Recruit Holdings Co., Ltd.) in 1992. He transfered from a sales division responsible for personnel media to the Human Resources Department in 2003. He was appointed General Manager of the Group Human Resources Department in 2007, General Manager of the Business Development Department of STAFF SERVICE HOLDINGS CO., LTD. in 2013, and Corporate Officer responsible for HIKARI TSUSHIN, INC. in 2015. He joined OPT Holding Inc. in 2018, managing the Human Resources Division as Group CHRO. He concurrently serves as Director & CHRO of OPT Inc. since April 2019.
Mr. Chishima joined OPT Inc. (now renamed DIGITAL HOLDINGS, INC.) in 2007. After working in mobile advertising sales and as the head of mobile planning and development, he was transferred to a consulting firm, and then founded Gruber, a holding company subsidiary, where he served as the representative director. He was appointed as Executive Officer in January 2021, in charge of planning and data solutions, and Director in April 2022.
Joined OPT (now Digital Holdings) in 2007. After working in sales, mainly in the financial industry, he became general manager of the sales department in 2012. After serving as head of sales in the real estate, entertainment, and travel industries, and as head of the sales, creative, and communication design divisions in the brand domain, he was appointed as Executive Officer in January 2021. He is in charge of the account area.
Mr. Takeuchi joined OPT Inc. (now renamed DIGITAL HOLDINGS, INC.) in 2007. After working as a programmatic advertising consultant and salesperson focusing on the human resources industry, he became General Manager of the Sales Department in 2011. He subsequently served as General Manager of the Consulting Department for new business development, media integration and social advertising, and was appointed an Executive Officer of OPT Inc. in April 2019. He is responsible for the media solutions domain.
Joined OPT (now Digital Holdings) in 2011. He worked as an operational advertising consultant and product manager, and in 2016, he became the general manager of the Creative Department. He later served as the General Manager of the Solution Development Department and the General Manager of the Media Purchasing Department before assuming the position of Executive Officer of the Company in April 2021. He is in charge of the Solutions (Solution Development and Media Purchasing) area.
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In 2012, Mr. Hiraiwa established Demand Side Science, the OPT Group’s ad tech development company, and was appointed Representative Director. He entered OPT Inc. in 2016. Established the engineering group “Opt Technologies,” and promoted initiatives including the development of proprietary tools and the AI transformation of the advertising agency business. In 2017, he assumed the position of CTO of OPT Inc. He was appointed an Executive Officer of OPT Inc. in April 2019, responsible for Opt Technologies as CTO.