SEPTENI CO., LTD. (Headquarters: Shinjuku-ku, Tokyo; Representative Director and President: Yusuke Shimizu; hereinafter "Septeni"), a consolidated subsidiary of SEPTENI HOLDINGS CO., LTD. (Headquarters: Shinjuku-ku, Tokyo; Representative Director: Yuichi Kouno; Securities Code: 4293), has been certified as a "Platinum" partner in "Criteo Certified Partner," which certifies agencies with a track record of continuous sales and high-quality operation of advertising solutions provided by Criteo S.A. (Headquarters: France; Japan Representative Director: Grace Fromm). The "Platinum" status was awarded to Septeni as part of the dentsu Japan, alongside Dentsu Digital Inc. (Headquarters: Minato-ku, Tokyo; Representative Director, President and CEO: Koh Takimoto; hereinafter "Dentsu Digital") and CARTA ZERO Inc.* (Headquarters: Minato-ku, Tokyo; Representative Director and CEO: Manabu Takahashi; hereinafter "CARTA ZERO"). For Septeni as an individual entity, this marks the fifth consecutive year of receiving this certification.

Furthermore, Septeni received the "Partner of the Year VERTICAL" award at the "Partner of the Year" ceremony, which honors partners that delivered particularly outstanding results during the previous fiscal year.

The "Criteo Certified Partner" program is a certification system provided by Criteo, which grants status levels such as "Diamond," "Platinum," "Sapphire," "Silver," and "Bronze" to agencies based on their sales and operational performance of the previous year. For the period of January to December 2025, Septeni was certified as "Platinum," alongside Dentsu Digital and CARTA ZERO.

Criteo also holds an annual "Partner of the Year" award recognizing partners who achieved outstanding results in the previous year. Septeni received the "Partner of the Year VERTICAL" award, in recognition of its significant contribution to business expansion within specific high-priority industries.

Septeni has a dedicated ad tech department with extensive expertise in tag implementation and data feed optimization, and quickly adapts to the latest industry trends. With a strong track record of selling and operating Criteo solutions across various industries, Septeni has consistently focused on maximizing campaign effectiveness. This commitment to results and contribution to solution utilization has led to recognition in the "Criteo Tech Partner" program, where Septeni is certified as both a "Data Feed Partner" and a "Tag Partner." Furthermore, Septeni Japan employees have also earned individual certifications under the "Criteo Expert" program.

Septeni will continue to comprehensively support clients' marketing activities, leveraging Criteo solutions and other initiatives.

*CARTA HOLDINGS (including CARTA ZERO) became a direct subsidiary of NTT DOCOMO in January 2026 and continues its business and capital alliance with the Dentsu Group. As this award recognizes achievements in 2025, CARTA ZERO was part of dentsu Japan at that time.

[Inquiries about the news]
Media Strategy Promotion Department, Media Solutions Division, Septeni Japan Inc.
E-mail: new.media-strategy@septeni.co.jp

[Inquiries about press release]
Kofunato & Kojima
PR Section, Corporate Communications Dept., CEO Office, Septeni Holdings Co., Ltd.
E-mail：koho@septeni-holdings.co.jp

■Overview of SEPTENI CO., LTD.
Main Business: Digital marketing support business
Head Office: Sumitomo Fudosan Shinjuku Grand Tower 28F, 8-17-1 Nishishinjuku, Shinjuku-ku, Tokyo, Japan
Representative: Yusuke Shimizu, Representative Director and President
Corporate URL: https://www.septeni.co.jp/en/

■Profile of Septeni Holdings Co., Ltd.
Business: A holding company to manage group companies which mainly develop the Internet businesses.
Head office: Sumitomo Fudosan Shinjuku Grand Tower 30F, 8-17-1
Nishishinjuku, Shinjuku-ku, Tokyo, Japan
Representative: Yuichi Kouno, Representative Director
URL: https://www.septeni-holdings.co.jp/en/