New Opt-Tel Holdings Limited | 29th August 1997 to 8th September 1997 |
---|---|
Opt-Tel Holdings Limited | 8th September 1997 to 15th January 2003 |
UK Communications Services Limited | 15th January 2003 to 15th February 2006 |
Optimal Communications Services Limited | 15th February 2006 to 30th April 2009 |
Optimal Monitoring Services Ltd | 30th April 2009 to 10th February 2015 |