| 1947 |
The Manchester Group commenced trading |
| 2005 |
ISS entered the marketplace in New Zealand with the acquisition of the Manchester Group |
| 2006 |
ISS acquire Cleaning Plus |
| 2006 |
ISS acquire Germtech Hygiene Services |
| 2006 |
ISS acquire Tempo Building Services Ltd. |
| 2006 |
ISS acquire First Security Guard Services Ltd. |
| 2008 |
ISS acquire Smartcare |
| 2008 |
ISS acquire Boracure |
| 2008 |
ISS acquire Chubb NZs Manned and Guarding Patrols Division |