Mediagene Inc.
Mediagene Inc. is a Japanese online publisher operating media brands such as Business Insider Japan and Gizmodo Japan.
Last updated September 16, 2026
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Overview
Mediagene Inc. (株式会社メディアジーン) is a Japanese online publisher. Its official site describes it as an "Online publisher, Mediagene" and states that it delivers content with high expertise and reliability to improve performance. The company operates multiple media brands, including Business Insider Japan and Gizmodo Japan, and is part of the TNL Mediagene group together with Infobahn Inc.
History
Mediagene Inc. was established on October 30, 1998, and transitioned to a holding company structure on July 1, 2015. It was co-founded by Motoko Imada and Hiroto Kobayashi. Imada had worked in the publishing industry on editorial publishing and overseas rights negotiation, and in 1994 was involved in launching the Japanese edition of WIRED and served as its business manager; she founded Mediagene Inc. in 1998. Kobayashi served as editor-in-chief of the Japanese edition of WIRED, launched in 1994, and co-founded the online media company Mediagene Inc. with Imada in 1998. The company operates brands such as Business Insider Japan and Gizmodo Japan. In 2023, following a business integration, TNL Mediagene (Nasdaq: TNMG) was co-founded, and Imada concurrently serves as its CEO.
Products and positioning
Online publisher delivering content with high expertise and reliability to improve performance.
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