| Aug. 2005 |
Established (plus) plus knowledge in Naha-shi, Okinawa-ken, with capital of 3 million yen |
| Oct. 2010 |
Capital 5 million yen, transfer to plus knowledge, Inc. |
| Mar. 2011 |
Establish Tokyo office in Minato-ku, Tokyo-to |
| Nov. 2012 |
We will make capital 7 million yen |
| Apr. 2013 |
Establish testing center in IT Shinryo Park of Uruma-shi, Okinawa-ken |
| Nov. 2013 |
The capital is set at 13 million yen |
| May 2014 |
Establishment of Naha Development Center |
| Mar. 2015 |
Tokyo office moved to Meguro-ku, Tokyo-to |
| Mar. 2015 |
Becomes a member of the Security Association of Important Living Equipment |
| May 2015 |
Wakasa office (management department) established |
| May 2015 |
Capital increased to 24 million yen |
| Sep. 2015 |
Number of employees reaches 123 (including some partner companies) |
| Apr. 2016 |
Wakasa office (management department) relocated to Ameku, Naha-shi |
| May 2016 |
Capital increased to 27.83 million yen |
| Apr. 2017 |
Transfer the Ameku office (administrative department) to Okinawa IT Shinryo Park Information and Communications Equipment Verification Site Center |
| Oct. 2017 |
Moved Tokyo office to Shinyokohama, kohoku-ku, Yokohama-shi, Kanagawa-ken |
