ARM: Britain's most successful tech company you've never heard of

Without ARM, the iPhone and other smartphones wouldn’t work. Hardly anyone knows it – and that’s just how Cambridge’s ‘Silicon Fen’ company likes itIn a loose collection of offices on an underwhelming business park outside of Cambridge sits Britain’s most successful technology company, ARM. You’ve probably never heard of it, but ARM’s designs are at the heart of the iPhone and nearly every other modern smartphone. It has fingers in almost eve