| Apr 1965 | Company established as PONY ATOMIC INDUSTRY CO., LTD. from the group Company Non Destructive Inspection Co., Ltd. |
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| Jun 1966 | Permitted by National Science & Technology Board to handle Radio Isotope | |
| May 1967 | Most Superior Prize won by exhibiting Ir192 Transmission Inspection System at the Plant Maintenance show | |
| July 1970 | Head Quater moved to Minami-ku, Osaka | |
| Sep 1970 | Established Kobe office | |
| Feb 1971 | Permitted to handle Radio Isotope at Kumatori Factory | |
| Jun 1978 | Established Tokyo Office | |
| Jan 1980 | Type-B Transportation Container for Co60 developed and permitted by MOT | |
| Sep 1981 | Established Hitachi Office | |
| Jul 1984 | Started to handle XRF (Import & Sales & Servicing) | |
| Apr 1987 | Started manufacturing and sales of microfocus X-ray inspection systems in Japan as a pioneer | |
| Apr 1989 | Established Chiba Office | |
| Jul 1990 | Established Takasago Office | |
| Aug 1991 | Inspection Division & Radiation Control Division organized | |
| Oct 1991 | JSNDI commendated for Infrared Ray Thermography inspection report | |
| Nov 1991 | National Science & Technology Board commendated for Safe works through the year | |
| Jan 1993 | Head Quater moved to Chuo-ku, Osaka as now addressed | |
| Feb 1993 | Company name changed to Pony Industry Co., Ltd. | |
| Dec 1993 | Distributor Agreement with Pan American Inc for handling IRIS | |
| Jul 1995 | Distributor Agreement with Quest Integrated for LOTIS | |
| Jul 1997 | Established Nagoya Office | |
| Jan 1999 | Distributor Agreement with Matec Instruments for UT inspection system | |
| Feb 2001 | Developed and start selling X-ray Digital Flat Panel | |
| Oct 2002 | Radiation tester Calibration work and R&D irradiation room at Kumatori Factory | |
| Dec 2002 | Developed and sold first non destructive inspection system to JASDF | |
| Dec 2003 | Distributor Agreement with AS&E for Backscatter X-ray technology | |
| Feb 2005 | Certified ISO 9001 |