'Outside your business niche it can be a minefield'

When PJ Farr left the army he started UK Connect, providing internet services to the building industry - enabling architects, engineers and builders to communicate rapidly using broadband services on construction sites. Nowadays it is a multi-million pound company. But when he was tempted to stray outside this niche, he says he found himself "in a minefield". he advises other entrepreneurs to stay "true to their own sector".

Video journalist: Jeremy Howell

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