For Ian Wilson and the Wattbike team, there was only ever one goal – to build the world’s most accurate indoor training bike. They were well-equipped for the challenge. “Competing in elite sport makes you single-minded,” says Ian, a former rowing world champion. “It’s a vital attribute in business, too…”

“I banged my head against a brick wall for 10 years. I tried every which way to make it work, but there comes a point when…you have to stop.” We spoke to Sally to uncover how she successfully bounced back from a decade of disappointment and frustration to build an extraordinary global brand worth £27m…

Vanilla Underground’s recent growth has been formidable, with online sales of its officially licensed clothing and apparel going – to use a technical term – completely ballistic. Armchair shoppers are ordering Minecraft T-shirts, Peppa Pig slippers and Harry Potter rucksacks faster than Sonic the Hedgehog. And the trend has handed the company’s Tamworth-based co-founders, married couple Deniz and Jason Yarnell, a heady combination of excitement, joy, and – because you can’t run a business without it – worry.

Pizza oven maker Ooni’s year-on-year growth is turbo-charged, but the stat that most exhilarates co- founder and co-ceo Darina Garland is not directly related to revenue at all. The number that makes her happiest is the company’s Employee Net Promoter Score, which is a whopping 74. The global average eNPS – a measure of employee engagement – is 12, with anything above 30 regarded as outstanding. So 74 is an outlier that proves that Ooni’s team absolutely loves working there.

Peter Roberts is the sort of investor you want on your team. The 75-year-old has been there and done it as a founder, marshalling his biggest recent success, PureGym, to a £160 million turnover and a place in the Sunday Times Fast Track 100. He’s also been there and done it as an investor, fuelling several exciting start-ups on their journeys towards rapid growth…

WeFlex provides car finance and rental to ride-hailing drivers, focusing on electric vehicles. Founder Nicko Williamson is a serial entrepreneur, who launched his first eco-friendly venture, ClimateCars, in 2007 aged 23 and sold it to Addison Lee in 2015 for an undisclosed sum. WeFlex has raised £2m of investment and £27.5m in debt to date. London-based WeFlex plans to have an all-electric fleet of 5,000 vehicles by 2025.