In 1989, Mark Dixon had an idea - the traditional office didn’t work for many businesses and they needed something more flexible. More than 30 years later, he has been proved right. IWG, the business he founded, is now worth more than £2 billion and runs 4,000 serviced offices around the world, which millions of people use to do their jobs as flexible working has taken off.

But it has been a challenging and sometimes lonely battle to get IWG to this point. This is a story that involves rapid growth, Chapter 11 bankruptcy and flashy new rivals…