[2][5] The Mercari app has been downloaded over 100 million times worldwide (as of 16 December 2017[update]) and the company is the first in Japan to reach unicorn status.

[9] The USD 75 million raised in Mercari's Series D round was set aside by the company for the purpose of further expansion in the US and UK, according to Chief Financial Officer Kei Nagasawa in a March 2016 interview.

[2] In 2014, the company opened an office in San Francisco in preparation for the launch of its app in the United States, which took place in September of that same year.

[13] It was announced In June 2017, that John Lagerling had joined Mercari from Facebook's management team and would be assuming the title of Chief Business Officer.

[2] Mercari shares its Tokyo offices with its wholly owned subsidiary Souzoh, Inc., which operates several other consumer-to-consumer (C2C) applications in Japan.