| 1971 |
Founded as Nisso Kogyo Co., Ltd., the predecessor of Nisso Kosan in 1971 |
| 1971 |
Founded Nisso Kogei Inc., the predecessor of Nisso Industry |
| 1984 |
In 1984, Nisso Kosan completed the Nisso No. 1 Building (Yokohama, Kanagawa) |
| 1984 |
Nisso Industry completed the Nisso No. 1 Building (Yokohama City, Kanagawa Prefecture) |
| 1986 |
Founded Nisso Office M2 Co., Ltd. (now Nisso Brain Co., Ltd.) in 1986 |
| 1986 |
Founded Nisso Office M2 Inc. (now Nisso Brain Inc.) |
| 1989 |
Decided on the new logo mark |
| 1989 |
Decided on the new logo mark of "NISSO" |
| 1990 |
Founded Nisso Real Estate Co., Ltd. (now Nisso Nifty Co., Ltd.) in 1990 |
| 1990 |
Founded Nisso Real Estate Inc. (now Nisso Nifty Inc.) |
| 1990 |
Nisso Industry held the 1st Improvement Case Report Meeting (in-house QC small group activities) |
| 1997 |
Completed the Nisso Kosan Shin-Yokohama Building (Yokohama, Kanagawa: new headquarters building) in 1997 |
| 1997 |
Completed the Nisso Industry Shin-Yokohama Building (Yokohama City, Kanagawa Prefecture: new headquarters building) |
| 1999 |
Changed the trade name of Nisso Office M2 Co., Ltd. to Nisso Brain Co., Ltd. in 1999 |
| 1999 |
Changed the trade name of Nisso Real Estate Co., Ltd. to Nisso Nifty Co., Ltd. in 1999 |
| 1999 |
Nisso Office M T Corporation changed its trade name to Nisso Brain Corporation |
| 1999 |
Nisso Real Estate Corporation changed its trade name to Nisso Nifty Corporation |
| 1999 |
Rebranded Nisso Office M2 Inc. to Nisso Brain Inc. and Nisso Real Estate Inc. to Nisso Nifty Inc. |
| 2000 |
The Japan Production Skills Labor Association was established in 2000, with Yuichi Shimizu as the first chairman |
| 2000 |
General Incorporated Association Japan Production Skills and Labor Association was established, with Yui Shimizu as the first chairman |
| 2005 |
In 2005, Nisso Kosan headquarters was certified under the international environmental management standard |
| 2005 |
Nisso Kosan headquarters business office certified for environmental management international standard "ISO14001" and registered for the first time |
| 2005 |
Nisso Industry headquarters business office certified with the international environmental management standard "ISO 14001" for the first time |
| 2007 |
In 2007, the mascot character |
| 2007 |
Birth of Nisso Kosan mascot character "Seizo-kun" |
| 2007 |
Established Nisso Pure Corporation in Kōhoku Ward, Yokohama City, and recognized as a special subsidiary |
| 2007 |
Birth of Nisso Industry mascot character "Seizo-kun"; established Nisso Pure Inc. in Yokohama's Kohoku Ward as a designated subsidiary |
| 2011 |
In 2011, Nisso Industry was the first to be certified as a high-quality and proper contractor under the Ministry of Health, Labour and Welfare's commissioned project "Manufacturing Contracting Excellent Proper Business Certification System". |
| 2011 |
Nisso Kosan first certified as a good and proper business operator in the Ministry of Health, Labour and Welfare entrusted project "Manufacturing Contracting Excellent Proper Business Certification System" |
| 2011 |
Ryuichi Shimizu appointed as chairman of the General Incorporated Association Japan Production Skills and Labor Association |
| 2011 |
Nisso Industry first certified as a good and proper manufacturing contractor under the Ministry of Health, Labour and Welfare's "Manufacturing Contracting Excellent Proper Business Certification System"; Ryuichi Shimizu appointed as chairman of the Japan Production Skills and Labor Association |
| 2015 |
In 2015, Nisso Industry was first certified as a good business operator under the Ministry of Health, Labour and Welfare's commissioned project "Excellent Dispatch Business Operator Certification System". |
| 2015 |
Nisso Kosan first certified as a good business operator in the Ministry of Health, Labour and Welfare entrusted project "Excellent Dispatch Business Operator Certification System" |
| 2015 |
Nisso Kosan joined the Japan Business Federation (Keidanren) |
| 2015 |
Nisso Industry first certified as a good contractor under the Ministry of Health, Labour and Welfare's "Excellent Dispatch Business Operator Certification System"; joined the Japan Business Federation (Keidanren) |
| 2018 |
In 2018, Nisso Industry was listed on the First Section of the Tokyo Stock Exchange. |
| 2018 |
Nisso Kosan listed on the First Section of the Tokyo Stock Exchange |
| 2020 |
In 2020, a joint venture company "Nikon Nisso Prime Co., Ltd." was established. |
| 2020 |
Established joint venture "Nikon Nisso Prime Co., Ltd." |
| 2021 |
In 2021, Nisso Industry celebrated its 50th anniversary. |
| 2021 |
In 2021, Vector Shinwa Co., Ltd. was made a subsidiary. |
| 2021 |
In 2021, a joint venture company "LeafNxT Corporation" was established |
| 2021 |
In 2021, the mascot character of Nisso Industry, "Tsurin," was born |
| 2021 |
Nisso Kosan celebrated its 50th anniversary |
| 2021 |
Vector Shinwa Co., Ltd. became a subsidiary |
| 2021 |
Established joint venture "LeafNxT Co., Ltd." |
| 2021 |
Birth of Nisso Kosan mascot character "Tsururin" |
| 2021 |
Nisso Industry celebrated its 50th anniversary; acquired Vector Shinwa Inc.; established joint venture "LeafNxT Inc."; birth of Nisso Industry mascot character "Tsurin" |
| 2022 |
In 2022, Nisso Industry transitioned to the Tokyo Stock Exchange Prime Market |
| 2022 |
In 2022, Nisso Industry concluded a capital and business alliance with Doctors Corporation |
| 2022 |
In 2022, Nisso Industry invested in and signed a partnership agreement with Interstellar Technologies Inc. |
| 2022 |
Nisso Kosan transitioned to the Prime Market of the Tokyo Stock Exchange |
| 2022 |
Nisso Kosan concluded a capital and business alliance with Doctors Corporation |
| 2022 |
Nisso Kosan invested in and signed a partnership agreement with Interstellar Technologies Inc. |
| 2022 |
Nisso Industry transitioned to the Tokyo Stock Exchange Prime Market; signed capital and business alliance with Doctors Inc.; invested in and formed a partnership with Interstellar Technologies Inc. |
| 2023 |
In 2023, Nisso Group's brand slogan was renewed to "Make the hardworking, the happy." |
| 2023 |
In 2023, Nisso Industry opened the Nisso Technical Center Kumamoto, its ninth education and training facility nationwide, and was certified as a vocational skills development school by Kumamoto Prefecture |
| 2023 |
In 2023, established NISSO Holdings Inc., a pure holding company of the Nisso Group |
| 2023 |
In 2023, NISSO Holdings Inc. was listed on the Tokyo Stock Exchange Prime Market, and Nisso Industry was delisted |
| 2023 |
Nisso Group's brand slogan was renewed to "Make workers, happy ones." |
| 2023 |
Nisso Industry established the Nisso Technical Center Kumamoto, the ninth training facility nationwide, recognized as a vocational ability development school by Kumamoto Prefecture |
| 2023 |
As a pure holding company of the Nisso Group, established "Nisso Holdings Inc." |
| 2023 |
Nisso Holdings Inc. listed on the Tokyo Stock Exchange Prime Market (Nisso Industry Inc. delisted) |
| 2023 |
Renewed Nisso Group brand slogan "Make workers, happy ones."; opened Nisso Technical Center Kumamoto, recognized as a vocational ability development school by Kumamoto Prefecture; established "Nisso Holdings Inc." as a pure holding company of the Nisso Group; Nisso Holdings Inc. listed on the Tokyo Stock Exchange Prime Market (Nisso Industry Inc. delisted) |
| 2024 |
In 2024, Nisso Industry made Aizu Corporation its subsidiary (its grandchild company) |
| 2024 |
In 2024, Nisso Industry opened the EV Technical Center Kansai and was certified as a vocational skills development school by Shiga Prefecture |
| 2024 |
In 2024, signed a capital and business alliance with Tsunagu Group Holdings |
| 2024 |
Nisso Industry acquired "Aizu Corporation" as a subsidiary (becoming a grandchild company) |
| 2024 |
Nisso Industry opened EV Technical Center Kansai, recognized as a vocational ability development school by Shiga Prefecture |
| 2024 |
Capital and business alliance with Tsunagu Group Holdings |
| 2024 |
Acquired "Aizu Corporation" as a subsidiary (becoming a grandchild company); opened EV Technical Center Kansai, recognized as a vocational ability development school by Shiga Prefecture; capital and business alliance with Tsunagu Group Holdings |
| 2025 |
In 2025, acquired Man to Man Holdings Inc. and its group companies, and All Japan Guard Inc. |
| 2025 |
Acquired "Man to Man Holdings Inc." and its group companies, and "All Japan Guard Inc." as subsidiaries |
