
This is the 18th edition of Infologue.com's annual rankings of the top security companies by revenue. This annual list is made using self reported information from the management at these companies as well as historical financial data where necessary.
“With most Covid-19 restrictions lifted across the UK at the start of 2022 the security landscape has again seen some big shifts as big government contracts have come to an end.
There has been no change amongst the top 5 largest security companies in ter...