| 1997 |
April |
Established OpenDoor, Inc. in Mita, Minato-ku, Tokyo |
|
August |
Launched travel comparison site "Travelko-chan"
|
|
|
Launched Travelko-chan "overseas tour search service" |
|
|
Launched Travelko-chan "overseas airline ticket search service"
|
| 2000 |
June |
Launched Travelko-chan "domestic tour search service" |
| 2001 |
March |
Relocated headquarters in Akasaka, Minato-ku, Tokyo |
| 2002 |
July |
Launched mobile phone contents "RPGDS" |
| 2003 |
May |
Became member of Japan Business Federation |
|
July |
Relocated headquarters within Akasaka, Minato-ku, Tokyo |
|
|
Launched mobile phone contents "Free game DS"
|
| 2004 |
December |
Launched Travelko-chan "domestic accommodations search service" |
| 2005 |
June |
Launched mobile phone contents "Game DS" |
| 2006 |
November |
Acquired the Privacy Mark of Japan's privacy mark system |
| 2010 |
January |
Launched Travelko-chan overseas accommodations search service |
| 2011 |
October |
Established Osaka office In Sonezakishinchi, Kita-ku, Osaka-shi, Osaka |
|
November |
Relocated headquarters within Akasaka, Minato-ku, Tokyo |
| 2013 |
January |
Launched Travelko-chan domestic airline ticket search service |
| |
April |
Launched Travelko-chan overseas tour and activities search service |
| |
June |
Launched Travelko-chan domestic dynamic package search service |
| |
|
Launched Travelko-chan domestic tour and activities search service |
| |
|
Launched Travelko-chan domestic car rental search service |
| |
|
Launched Travelko-chan domestic highway bus search service |
| 2014 |
January |
Launched Travelko-chan overseas dynamic package search service |
|
|
Launched Travelko-chan overseas local reviews service |
|
March |
Acquired subsidiary company stock of Hotel Skip Co.,Ltd |
|
April |
Acquired the Kurumin mark (Certification mark for companies that provide support to families raising children.) |
|
October |
Launched multi-language travel comparative site "HOTELSAURUS" for global market |
|
|
Launched HOTELSAURUS airline search service |
|
|
Launched GALLERY JAPAN Japanese traditional art and crafts site |
| 2015 |
April |
Launched HOTELSAURUS airline ticket search service |
|
May |
Launched HOTELSAURUS local reviews service for Japan |
|
December |
Opendoor listed on the Tokyo Stock Exchange mothers market |
| 2016 |
June |
Multi-language travel comparison site "HOTELSAURUS" renamed to "TRAVELKO" |
|
December |
OpenDoor transferred from Mothers to 1st section market on the Tokyo Stock Exchange |
|
|
Launched Travelko-chan, iOS version of a free map application "Travelko Map" |
|
|
Launched Travelko-chan, domestic one day bus tours |
| 2017 |
January |
Travel comparison site "Travelko-chan" renamed to "Travelko" |
|
June |
Launched Travelko domestic market overseas Wi-Fi rental comparison services |
|
July |
Relocated headquarters within Akasaka, Minato-ku, Tokyo (present address) |
|
October |
Released "Summary of Travelko" with reviews and ranking by travel experts |
| 2019 |
April |
Launched Travelko domestic rail and hotel comparison service |
| 2022 |
April |
Transition to Tokyo Stock Exchange Prime Market |
| 2023 |
August |
Launched "International travel insurance comparison service" on Travelko |