What is Countrymanager.jp

Countrymanager.jp is a site run by volunteers with experience in setting up Japanese businesses for foreign-affiliated companies.

When a foreign company expands into Japan, you may have had the experience of repeating the same mistakes or spending a lot of time researching because you don’t have success stories, failures or know-how.

At Countrymanager.jp, current and former country managers of foreign-affiliated companies in Japan will share their knowledge, experience, and know-how in order to increase the repeatability of everyone’s success.


Tatsuo Sakamoto

Serial international-companies-Japan-entry-preneur. After leading the successful growth of Google AdMob and AppLovin, I joined a Finland-based marketing tech company Smartly.io as head of sales in Japan in Feb 2019. Prior to Google, I was working for Rakuten as a new grad after graduating from Tokyo University.

Kiminari Takahashi

After graduating from university, worked at Recruit, Criteo, and other companies before joining RTB House in Japan in January 2018.
joined RTBHousefrom its launched and grew to a scale of 25 employees with sales of several billion yen per year in its third year.