1998
| May | Establishment of Hot Pot Co.,Ltd. (Capital Stock: 10,000,000 JPY) in Osaka-fu, Osaka-shi, Nishi-ku, Nishihonmachi, 2-4-10 Start of business as home page creation and multimedia contents provider |
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2001
| June | Start of Call Center Operation |
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| December | Start of Staffing Services |
2003
| March | Acquisition of mobile phone distribution business right from KAMTEC.co.,Ltd. Affiliation and acquisition of all issued stocks of KAMTEC.co.,Ltd. that runs oil distribution business Affiliation and acquisition of all issued stocks of Santa Co.,Ltd. (Company name was changed to Internet Management System) |
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| April | Start of bulletin board post monitoring business in the internet bulletin board in our company group |
| June | Acquisition of staffing services business right from Yokogawa Q&A Corporation (Currently Q&A Corporation) |
2005
| October | Change of legal name to "E-Guardian Inc." Transfer of mobile contents selling business to Edia Co.,Ltd. due to corporate separation |
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2006
| June | Selling off mobile phone selling business to Ryowa Telecom Corporation |
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| July | Selling off a part of staffing services to Fuji Staff, Inc. |
| October | Relocation of main office to Tokyo-to, Minato-ku, Azabujuban, 1-2-3 (Old head office was moved to Osaka Center) Establishment of the main office in Tokyo |
2007
| February | Relocation of Osaka Center to Osaka-fu, Osaka-shi, Kita-ku, Umeda, 1-1-3 |
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| September | Liquidation of the subsidiary company Internet Management System |
2009
| March | Establishment of the Tachikawa Center in Tokyo-to, Tachikawa-shi, Akebono-cho |
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2010
| October | Establishment of the Roppongi Center in Tokyo-to, Minato-ku |
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| December | Listing of stocks in Tokyo Stock Exchange Market Mothers |
2011
| June | Establishment of the Miyazaki Center in Miyazaki-ken, Miyazaki-shi |
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2012
| June | Acquisition of 100% ownership of Iope Co.,Ltd. (Currently: EG Tohoku Inc.) |
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2014
| September | Acquisition of 100% ownership of Power Brain Inc. (Currently: EG Human Solutions) |
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| October | Establishment of Trunel Inc. due to corporate separation |
2015
| April | Acquisition of 100% ownership of HASH Consulting Inc. (Currently: EG Secure Solutions Inc.) |
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| September | Establishment of the Kumamoto Center in Kumamoto-ken, Kumamoto-shi |
2016
| February | Establishment of Real Reputation Research Inc. |
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| September | Listing changes to the First Section of the Tokyo Stock Exchange Market |
2017
| January | Acquisition of 100% ownership of ITS Inc. |
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| May | Iope Co.,Ltd. company name changed to E-Guardian Tohoku Inc. Link Style Inc. company name changed to EG Human Solutions Inc. HASH Consulting Inc. company name changed to EG Secure Solutions Inc. |
| May | Launch of The In-Image Object Detection System "Kiducoo AI" |
| July | Establishment of E-Guardian Philippines Inc. in Republic of the Philippines |
2018
| April | Establishment of the Osaka GameLabo in Osaka, Kita-ku |
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| October | Merge absorption of EG Human Solutions and Real Reputation Research Inc. |
2019
| January | Relocation of head office to Tokyo, Minato-ku, Toranomon, 1-2-8 |
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| August | Establishment of GresAVAIL Inc. as a subsidiary |
| October | Merge of Trunel Inc. and ITS Inc. and renamed as EG Testing Services Inc. |
2020
| April | Establishment of the Hiroshima Center in Hiroshima-ken, Hiroshima-shi, Naka-ku |
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| April | Establishment of the Shinjuku Satellite in Tokyo-to, Shinjuku-ku, Nishi-shinjuku |
| August | Extended relocation of E-Guardian Philippines Inc. to 6th Floor Unit A & B Alphaland Southgate Mall 2258 Chino Roces Ave. Brgy. Magallanes, Makati City 1232 |
| October | Acquisition of 100% ownership of JP-Secure Inc. |
2021
| June | Establishment of the Akasaka Ad Process Lab in Tokyo-to, Minato-ku, Akasaka |
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| August | Establishment of E-Guardian Vietnam Co.,Ltd. in Socialist Republic of Vietnam |
| October | Merge of GresAVAIL Inc. and JP-Secure Inc. with EG Secure Solutions Inc. |
2022
| January | Extended relocation of Tokyo Center to Tokyo-to, Shinjuku-ku, Nishi-shinjuku |
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| February | Expansion of the Osaka Center in Osaka-Fu, Osaka-shi, Kita-ku, Dojima |
| April | Transitioned to the Prime Market of the Tokyo Stock Exchange |
2023
| January | Establishment of the Hakata Center in Fukuoka-ken, Fukuoka-shi, Hakata-ku, Hakataekimae |
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| August | Entered into a capital and business alliance agreement with CHANGE Holdings, Inc. |
| October | Friendly TOB by CHANGE Holdings, Inc. is completed, Ltd. and simultaneously implemented a third-party allotment of new shares to CHANGE Holdings, Inc. and became a consolidated subsidiary of CHANGE Holdings, Inc. |