| 1944 | Founded in Sakaki, Nagano Prefecture. |
|---|---|
| 1952 | Begins conducting business with the Honda Motor Company. |
| 1961 | Begins conducting business with Komatsu Ltd. |
| 1968 | Capital increased to ¥140 million. |
| 1969 | Tobu plant established in Tobu-machi and begins operations. |
| 1970 | Second Tobu plant established. |
| 1982 | Third HQ plant established. |
| 1986 | Fourth HQ plant established. |
| 1994 | Maruko plant established in Maruko-machi and begins operations. |
| 1998 | Second Maruko plant established. |
| 1998 | New HQ office building established. |
| 1999 | ISO 14001 certification received. |
| 2001 | PT. TSUZUKI & ASAMA MANUFACTURING (T&A) established in Indonesia. |
| 2002 | T&A begins operations. |
| 2006 | Third Maruko plant and second T&A plant established. |
| 2007 | ISO 9001 certification received. |
| 2008 | Maruko Welfare building established. |
| 2010 | JS-TEC Co. established in Isesaki, Gunma Prefecture. Capital increased to ¥480 million. |
| 2011 | Thai Tsuzuki Co., Ltd (TTC) established in Thailand. |
| 2012 | T&A Karawang plant established. T&A acquires ISO 9001 certification. TTC acquires the ISO 9001 and ISO 14001 certifications. |
| 2014 | 70th anniversary since founding. |
| 2015 | Yuki Kurita becomes company president. |