IMSI catchers, intrusion software, internet monitoring solutions: UK companies provide it all.
The UK is a worldwide exporter of surveillance technology. From devices that hoover up phone calls and text messages, to hardware for monitoring internet traffic, Her Majesty's Government has granted myriad licenses to ship spying gear over the past few years.
Some of the recipient countries will have legitimate uses for such products, but many—Egypt, Turkey, Saudi Arabia—also have abhorrent human rights records, especially when it comes to abusing powerful surveillance tech.
https://motherboard.vice.com/en_us/article/uk-surveillance-export-map
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