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Inmarsat was set up by the UN in 1979 to monitor and safeguard shipping from space.

Now a private company, it has become a market leader in mobile satellite communications.

Simon Jack met the boss Rupert Pearce at its high-tech mission control in East London.

"It's very capital intensive and it's a very long term business because the assets last 20 to 25 years," he said.

"What any business needs...is stability. The UK remains a very good solid place to do business," he added.