ohpner Ranks 3rd in Ad Handling Volume for Japan's Largest Taxi Media "TOKYO PRIME" in Less Than 1.5 Years

ohpner Inc. (Shibuya-ku, Tokyo; Representative Director: Ken Doi) achieved the 3rd highest advertising handling volume for "TOKYO PRIME," Japan's largest taxi media (※1) operated by IRIS Inc. (Headquarters: Minato-ku, Tokyo; Representative Directors: Takuya Mai, Teppei Toda), during the sales period of January-March 2026, in less than 1.5 years.

ohpner began handling all advertising menus for "TOKYO PRIME" in November 2024, which boasts the No. 1 installation share in Tokyo and nationwide among taxi media that have rapidly expanded and established themselves as a standard recognition media in recent years. ohpner provides total support from creative production for taxi CMs to ad distribution and performance measurement.

About Taxi Media "TOKYO PRIME" Taxi Media "TOKYO PRIME" (https://www.tokyo-prime.jp/) Operated by IRIS Inc., established in June 2016 as a joint venture between GO Inc., which handles the No. 1 (※2) taxi app "GO," and FreakOut Holdings Inc., the first domestic DSP vendor as an internet advertising technology company.

As of April 2026, high-definition digital signage with audio is broadcast in approximately 71,000 taxis in 36 major cities nationwide (※3), including 25,500 taxis from major Tokyo operators such as Nihon Kotsu and Teito Jidosha Kotsu. This allows reaching business people and affluent individuals traveling by taxi.

Official release regarding this matter: https://ohpner.com/news/20260414

※1 Based on comparison of numbers stated in media materials of each taxi media company. As of April 2026. ※2 According to Sensor Tower research -Number of downloads in Japan for taxi dispatch related apps (total of App Store/Google Play) -Survey period: October 1, 2020 - December 31, 2025 ※3 Hokkaido, Iwate, Miyagi, Akita, Yamagata, Fukushima, Tokyo, Kanagawa, Saitama, Chiba, Ibaraki, Tochigi, Gunma, Niigata, Toyama, Ishikawa, Fukui, Nagano, Gifu, Shizuoka, Aichi, Osaka, Kyoto, Hyogo, Mie, Shiga, Nara, Wakayama, Hiroshima, Ehime, Kochi, Fukuoka, Saga, Nagasaki, Kumamoto, Okinawa

About ohpner Inc. ohpner supports customer business growth through offline advertising and marketing consulting. We provide total marketing solutions, from media selection for mobility advertising (formerly Ad Truck), taxi advertising, transit advertising, and other OOH, to creative production, ad distribution, and performance measurement.