| April 2009 |
Trade name changed to Helios Techno Holding Co., Ltd. |
| April 2009 |
Conducted a spin-off-type company split, establishing Phoenix Electric Co., Ltd. as an operating subsidiary. |
| April 2009 |
Acquired shares of Nippon Gijutsu Center Co., Ltd. and converted the company into a subsidiary. |
| May 2009 |
Converted Nippon Gijutsu Center Co., Ltd. into a wholly owned subsidiary through a share exchange. |
| June 2009 |
Established Nakan Techno Co., Ltd. |
| July 2009 |
Nakan Techno Co., Ltd. received a business transfer from Nakan Corporation and commenced operations. |
| April 2010 |
Following the merger of the JASDAQ and Osaka Securities Exchange, the Company’s shares were listed on the Osaka Securities Exchange (JASDAQ Market). |
| October 2010 |
Following the merger of the Osaka Securities Exchange'’s Hercules, JASDAQ and NEO markets, the Company’s shares were listed on the Osaka Securities Exchange JASDAQ (Standard). |
| April 2011 |
The Company was restructured and implemented an ERP system (OBIC7). |
| May 2013 |
Acquired shares of Kansai Giken Co., Ltd. and converted the company into a subsidiary. |
| July 2013 |
Overlapping listings on the Osaka Securities Exchange JASDAQ (Standard) due to the market integration of the Tokyo Stock Exchange and the elimination of the Osaka Securities Exchange. |
| August 2013 |
Converted Kansai Giken Co., Ltd. into a wholly owned subsidiary through a share exchange. |
| October 2013 |
Nippon Gijutsu Center Co., Ltd. conducted an absorption-type merger with Kansai Giken Co., Ltd. |
| October 2013 |
Techno Provider Co., Ltd. became a consolidated subsidiary through the acquisition of all of its shares. |
| April 2015 |
Nippon Gijutsu Center Co., Ltd. conducted an absorption-type merger with Techno Provider Co., Ltd. |
| October 2016 |
Nakan Techno Co., Ltd. acquired Leadtech Co., Ltd. as a subsidiary through the purchase of shares. |
| December 2018 |
Technolink Co., Ltd. became a subsidiary through the acquisition of all of its shares. |
| August 2019 |
Tokyo office opened in Nihonbashi Kodenma-cho, Chuo-ku, Tokyo. |
| January 2020 |
Sold all shares of Nippon Gijutsu Center Co., Ltd. and Technolink Co., Ltd. |
| December 2020 |
Head Office was relocated to Nihonbashi Kodenma-cho, Chuo-ku, Tokyo. |
| April 2022 |
Moved to the Tokyo Stock Exchange Standard Market. |
| October 2023 |
Head Office was relocated to Nihonbashi Bakuro-cho, Chuo-ku, Tokyo. |
| April 2025 |
PHOENIX Electric Co.,Ltd. acquired Techno-Koubou Co., Ltd. as a wholly owned subsidiary through the purchase of all its shares. |
| July 2025 |
Established Helios Techno Investments Co., Ltd. |
