| 1987 |
Founded Creative Reform Office Maeda in Kamimeguro, Meguro-ku, Tokyo. |
| 1988 |
Established Nissou Co., Ltd. (capital 3 million yen). |
| 1988 |
Established: 1988 (Showa 63) |
| 1990 |
Moved headquarters to Sakura, Setagaya-ku: began focusing newspaper inserts, magazines, and transportation advertising in the southern Tokyo area. |
| 1993 |
Capital increased to 10 million yen. |
| 1994 |
Started TV commercials on TV Asahi network targeting end users in Kanto (1 prefecture + 6 prefectures): provided programs such as the period drama repeat slots 'Tōyama no Kin-san, Bōrenbō Shōgun, Sanbiki ga Kiru!' for 1 year 9 months. |
| 1998 |
As the proportion of corporate clients in ongoing transactions increased, shifted all sales activities to B2B: specialized in restoration work for rental and resale properties. |
| 2005 |
Established Sales Division 2. Capital increased to 20 million yen. |
| 2006 |
To improve management efficiency, moved headquarters to Keido, Setagaya-ku. |
| 2007 |
Built an in-house original sales management system to prepare for increased order opportunities. |
| 2010 |
Started radio commercials on Nippon Broadcasting's 'Akkō no Ii Kagen ni 1000-kai': capital increased to 50 million yen. |
| 2013 |
Capital increased to 100 million yen: started radio commercials on Radio Japan's 'Mine Suta' by Mine Ryuta. |
| 2015 |
Annual sales exceeded 1,000 million yen (10 billion yen) including tax. |
| 2016 |
Started nationwide radio commercials: opened Kanagawa branch office in Kankawa-cho, Kanagawa Prefecture. |
| 2016 |
Opened the Kanagawa office in Kanagawa Town, Kanagawa Prefecture. |
| 2017 |
Opened Saitama branch office in Saitama City, Saitama Prefecture. |
| 2018 |
Listed on the Tokyo PRO Market of the Tokyo Stock Exchange. |
| 2020 |
Listed on the Nagoya Stock Exchange Centrex (now Next Market): opened Chiba branch office in Funabashi City, Chiba Prefecture; opened Okayama Design Room in Okayama City, Okayama Prefecture; capital increased to 216.28 million yen (2.1628 billion yen). |
| 2020 |
Opened the Okayama Design Room in Okayama City, Okayama Prefecture : Capital increased to 216.28 million yen (216.28 million yen). |
| 2020 |
Opened the Chiba office in Funabashi City, Chiba Prefecture. |
| 2021 |
Opened Asaka branch office in Asaka City, Saitama Prefecture. |
| 2022 |
Opened Yokohama branch office in Yokohama City, Kanagawa Prefecture; listed on the Tokyo Stock Exchange Growth Market; capital increased to 349.78 million yen (3.4978 billion yen); opened Metropolitan North Construction Center in Misato City, Saitama Prefecture. |
| 2022 |
Opened the Yokohama office in Yokohama City, Kanagawa Prefecture : Listed on the Tokyo Stock Exchange Growth : Capital increased to 349.78 million yen (349.78 million yen). |
| 2022 |
Opened the North Metropolitan Construction Center in Misato City, Saitama Prefecture. |
| 2023 |
Established Japan Resort Bank Co., Ltd.; grouped Yana Corporation; formed a capital and business alliance with Hong Kong Takeya Honpu Co., Ltd.; acquired shares of An'ei Construction Co., Ltd. (code 1439) to become an equity-method affiliate; opened Metropolitan South Construction Center in Fujisawa City, Kanagawa Prefecture; established a Malaysia liaison office. |
| 2023 |
Opened the South Metropolitan Construction Center in Fujisawa City, Kanagawa Prefecture. |
| 2023 |
Established Japan Resort Bank Co., Ltd. : Grouped with Yana Corporation : Entered a capital and business alliance with Hong Kong Takeya Honpo Co., Ltd. : Became an equity-method affiliate by acquiring shares of An'ei Construction Co., Ltd. (Code 1439). |
| 2024 |
Malaysia: Signed a strategic partnership with TOMORROW WTO SDN. BHD. : Opened the Tohoku office in Sendai City, Miyagi Prefecture : Grouped with Sasaki Co., Ltd. : Grouped with Heisei Housing Co., Ltd. : Signed a comprehensive MOU with Malaysia's OSK Holdings Berhad in real estate business. |
| 2025 |
Opened the "Reform Pro" general user renovation business in Keido : Announced the single-family home "Shonan Southern Home" with a pool & palm concept : Started nationwide recruitment for the craftsman training franchise "Cross House". |
| 2026 |
Grouped with Daiichi Giken Co., Ltd. |
