| 1859 | Werner Siemens completes laying of sea cables |
| 1901 | Siemens opens Branch Office in Cairo |
| 1928 | First hydro power plant supplied to Fayoum |
| 1957 | ELMACO Joint-Venture, Transformer Factory |
| 1978 | EGEMAC Joint-Venture, Circuit Breaker Factory |
| 1990 | EGTI Joint-Venture, Telecom Manufacturing Plant |
| 1992 | Siemens Ltd. Egypt, Sales & Service Organization |
| 1993 | Egytech Joint-Venture, Telecommunication Cables |
| 1996 | Egyptian Turbine Company, Turboset Components |
| 1998 | Siemens Limited and EGTI are consolidated companies |
| 2001 | 100 years anniversary of Siemens in Egypt |
| 2003 | 10 years anniversary of EGTI |
| 2006 |
Hub for Northeast Africa region // Shared services provided to Libya, Jordon, Syria and Lebanon |
| 2007 | Integration of VA Tech in Egypt |
| 2008 |
Siemens Limited changed its legal form to become Siemens S.A.E. (Siemens Technologies S.A.E.) |
| 2011 | 110 years Anniversary for Siemens S.A.E.in Egypt |