| 1990      | Partnership of owners, private enterpreneurs. First telecom application design. |
| 1991 | RYSTON started, visit to companies and universities in USA. |
| 1992 | RYSTON Electronics Ltd. registered. Comapny develops rapidly. |
| 1993 | Moving to new address, RYSTON known as distributing and designing company. |
| 1994 | Registered at Dun and Bradstreet's - Financial liability for the world. |
| 1995 | Moving to a newly opened building at Prague-Modrany, first financial audit. |
| 1996 | ISDN Era - development of an ISDN PBX for Czech customer. |
| 1997 | Entering Europe - ISDN router designed for a German customer. Ryston presented on web. |
| 1998 | Ernst & Young supported Ryston Quality system introduction. |
| 1999 | Quality control system certified according to ISO9001 by SGS. |
| 2000 | Export sales of components exceeded 40% company turnover. Attending the Electronica 2000 exhibition in Munich, Germany. |