|October 2006||Established Septeni Co., LTD.
Former SEPTENI CO.,LTD. converted into a holdings company under the trade name SEPTENI HOLDINGS CO., LTD.
Internet advertising business section became present SEPTENI CO., LTD.
|April 2007||Headquarters relocated to 24 Daikyo-cho Shinjuku-ku, Tokyo.|
|July 2008||Established Miyazaki office.（present: MANGO,Inc）|
|October 2009||Established MANGO,Inc.|
|November 2010||Established HighScore,Inc.|
|December 2011||Headquarters relocated to 8-17-1 Nishishinjuku Shinjuku-ku,Tokyo.|
|March 2012||Established Septeni Asia Pacific Pte. Ltd. (started operation from April 2012.)|
|May 2012||Established Septeni America, Inc. (started operation from September 2012.)|
|March 2013||Established SEPTENI TECHNOLOGY CO., LTD.|
|January 2014||Established Septeni Original, Inc.|
|March 2014||Established Korea Branch.|
|September 2015||Established Septeni China Limited (started operation from January 2016.)|
|October 2016||Acquired the shares of Lion Digital Global Ltd through Septeni AsiaPacific Pte. Ltd.|
|April 2017||Established Septeni Ad Creative,Inc.|
|September 2017||Established Delight Tube,Inc. (started operation from October 2017.)|