Company Profile

Company Name Infomart Corporation
Representative President and CEO Ken Nakajima
Company Address 13th Floor, Shiodome Shibarikyu Building, 1-2-3 Kaigan,
Minato-ku,Tokyo, 105-0022, Japan
TEL : +81-3-5776-1147
FAX : +81-3-5776-1145
Date of Foundation 13th February 1998
Capital Fund 3.2 billion 12.51 million yen
Business Content Business to Business EC Trade Platform
Number of Employees 788 Persons
Permanent Employees 625 Persons, Temporary Employees 163 Persons
(as of March 2024)
Subsidiaries Tanomu Inc.
Restartz Co., Ltd.


February 1998 Established Infomart in Minami-Magome, Ota-ku, Tokyo
June 1998 Launched e-Market Place (current BtoB Platform Matching)


August 1999 Opened Fukuoka Customer Center (Hakata, Fukuoka Prefecture)


February 2003 Launched ASP Ordering System (current BtoB Platform Ordering)


April 2005 Launched ASP Food Standards Database (current BtoB Platform Standards Database)


August 2006 Listed on the Mothers Market of the Tokyo Stock Exchange


October 2009 User companies of all services reached 20,000
November 2009 Launched ASP Ordering and Sales (current BtoB Platform Ordering Light)


August 2013 Opened West Japan Sales Office in Osaka


January 2015 Launched ASP Invoicing System (current BtoB Platform Invoicing)
October 2015 Moved stock listing to the First Section of the Tokyo Stock Exchange


January 2016 Changed the brand name to BtoB Platform, and began providing services under the new name
September 2016 User companies of BtoB Platform Invoicing exceeded 100,000


February 2017 Launched BtoB Platform Industry News & Data Portal
September 2017 Launched BtoB Platform Quoting


July 2018 Launched BtoB Platform Contract


January 2020 Launched Electronic Invoice Early Payment
March 2020 Launched BtoB Platform Ordering for Manufacturers


February 2021 Entered into a capital and business alliance with Tanomu Inc.
July 2021 Launched BtoB Platform TRADE


April 2022 Moved stock listing to the Prime Market of the Tokyo Stock Exchange
November 2022 Restartz, a joint venture with Kushikatsu Tanaka Holdings, launched V-Manage service


May 2023 Overhauled corporate brand
July 2023 Launched BtoB Finance service, Credit Sales Payment


March 2024 Made Tanomu Inc. a consolidated subsidiary.
March 2024 Opened Sapporo Office in Hokkaido.
April 2024 Opened Okinawa Office in Okinawa.
April 2024 Opened Sangenjaya lab in Tokyo.
May 2024 Opened Nagoya Office in Aichi.