1970〜
| 1971 | Found under the name of Miike Engineering Co., Ltd. |
| 1973 | Changed the company name to Iseki Polytech Co., Ltd. |
| 1976 | Tokyo factory opened First MEP unit sold |
| 1977 | Osaka Sales Office opened Sold the first Telemall unit |
| Sales volume | ・MEP = 56 units ・Telemole = 27 units |
1980〜
| 1980 | Entered the pipe-thrusting construction field Opened Kyushu Sales Office |
| 1981 | Crunching Mall completed |
| 1983 | Hokkaido Sales Office opened Yachiyo Factory opened |
| 1984 | Unclemole completed |
| 1986 | Tohoku Sales Office opened |
| 1988 | EURO ISEKI established (UK) USA branch opened (USA) Hiroshima sales office opened Miyazaki branch opened |
| Sales volume | ・MEP = 112 units ・Telemole = 69 units ・Crunching Mole = 83 units ・Other = 19 units |
1990〜
| 1990 | Nihonhara Factory opened Uncle Mole Sun completed Displacement tunneling machine completed Nagoya Sales Office opened |
| 1991 | ISEKI, INC. established (USA) Miyoshi factory opened Perry Mole joints Uncle Mole Z completed |
| 1992 | Nagano branch office opened No-soil-disposal propulsion completed Uncle Mole supermarket completed |
| 1994 | Nippon Nodig established Unclemole L completed |
| 1996 | Seoul office opened Partical Mole completed Uncle Mole Mini completed |
| Sales volume | ・MEP = 5 units ・Telemole = 4 units ・Crunching Mole = 8 units ・Uncle Mole = 399 units ・Uncle Mole Super = 223 units ・Uncle Mole V = 416 units ・Other = 255 units |
2000〜
| 1999年～2000 | Taipei Songshan Airport (Taiwan) Pipe roof construction φ812 L=100m x 72 pipes L=74m x 83 pipes |
| 2000 | Transfer of Nippon Nodig to another company ISEKI, INC. (USA) business closed |
| 2003 | Established Nishinippon Kikai Closed EURO ISEKI (UK) and signed a European general agency contract with British corporation “AGE” |
| 2003～04 | Pipe roof construction on the Metropolitan Expressway Central Circular Shinjuku Line |
| 2005 | Construction of pipe roof for Yoyogi-Uehara Station-Umegaoka Station multi-level crossing |
| Sales volume | ・Uncle Mole = 12 units ・Uncle Mole Super = 56 units ・Uncle Mole Mini = 64 units ・Uncle Mole V = 30 units ・Other = 7 units |
2010〜
| 2010 | Changed European distributor contract from AGC to “Specialist Plant Associates LTD” |
| 2010～12 | Central Circular Shinagawa Line Shield Tunnel Construction Pipe Roof Construction |
| 2013～14 | Yokohama Circular Route North Line Pipe Roof Construction |
| 2015 | Construction of pipe roof at Ichikawanaka on the Tokyo Outer Ring Road |
| 2015～16 | Tokyo Outer Ring Road Tajiri Pipe roof construction |
| 2017～18 | Kyushu Shinkansen Isahaya Tunnel Pipe Roof Construction |
| Sales volume | ・Uncle Mole = 5 units ・Uncle Mole Super = 20 units ・Uncle Mole Mini = 12 units ・Uncle Mole V = 8 units ・Other = 16 units |
2020〜
| 2020 | Due to the coronavirus pandemic that began in Wuhan, China, people are no longer able to travel abroad. |
| 2021 | 50th Anniversary |
| 2022 | In April 2022, all shares will be sold to the Exeo Group, Inc., becoming a wholly owned subsidiary. |
| 2022～23 | Construction of pipe roof for Sakabe Tunnel, Hokusei Bypass |
| 2022 | Since July, overseas business trips have been allowed as the coronavirus outbreak has subsided. |
| 2023 | Projects in emerging Asian countries that had been delayed due to COVID-19 have resumed, and orders for tunneling machines from each country have resumed. |
| Sales volume | ・Uncle Mole = 4 units ・Uncle Mole Mini = 7 units ・Other = 3 units |