The latest Sunday Times Rich List looks at the wealth of Britain's richest 1,000 people, with this snapshot taken in the spring of 2016. We've picked out some of the most well-known entrepreneurs on the list.
Sir James Dyson (Dyson)
The vacuum cleaner and fans inventor is worth £5bn with a £1.5bn increase over the year. He has climbed to 17th place from joint 22nd in 2015. What’s behind the rise? In short, Dyson is cleaning up in China, where sales have trebled.
Joanne Rowling (Harry Potter)
The author of the hugely successful Harry Potter books and films is ranked joint 197th with a £600m wealth. She enjoyed a £20m rise, with royalties up, while her Pottermore company registered a loss of £6m in 2014-15. Rowling’s regular charitable giving also shrinks her wealth.
Sir Richard Branson (Virgin)
The Virgin boss and his family are worth £4.5bn and place 19th on the list. Their wealth increased by £420m over the year moving them up from 20th place in 2015. In early 2016 Branson sold his 30% stake in the Virgin America airline for £540m — twice what it was worth in 2014. The Virgin empire covers trains, planes, the internet and space.
The straight-talking entrepreneur and star of The Apprentice is joint 95th with a wealth of £1.15bn. It rose £110m over the year.
Mike Ashley (Sports Direct)
The founder of the under-fire sports chain has seen his wealth fall by more than £1bn to £2.43bn, pushing him into 45th place from 22nd.
Sir Philip and Lady Green (Arcadia)
The boss of the Arcadia retail group ranks 29th on the latest list, after a hugely challenging year when the pension deficit of the now-closed BHS came under scrutiny. HIs £3.22bn wealth was down from £3.5bn in 2015, when he ranked equal 22nd.
Sir Stelios Haju-Iaonnou and family (easyGroup)
At 41st on the Rich List is the founder of easyJet and various other easyGroup brands. His wealth is £2.59bn, a £170m decline.
Sir Charles Dunstone (Carphone Warehouse)
The co-founder of Carphone Warehouse, which merged with Dixons in 2014, is ranked equal 82nd, with a wealth of £1.3bn, down £500m, on falling share values in his business stakes. Dixons Carphone has sales of of more than £10bn and is Britain's biggest electrical retailer.
Simon Nixon (Moneysupermarket.com)
The co-founder of the price comparison service is worth £1.03bn and is in 113th place. His wealth is up £81m.
Sir Tom Hunter
The Scottish entrepreneur, who founded the Sports Division chain which he sold to JJB Sports for £290m, returned to the Rich List in 2015 after losing £250m in failed investments. He is currently worth £540m, up £11m.
The telecoms boss and Dragons' Den investor has seen no change to his £475m wealth. He is in joint 246th place.
The music mogul is currently worth £340m which puts him in joint 319th place. Despite a year of mixed commercial fortunes, he has seen a £15m increase in his wealth.
Dame Margaret and Helen Barbour (J Barbour)
The owners of the clothing brand J Barbour are worth £335m, a £15m rise. They rank at equal 326th.
The retail entrepreneur and former panellist on BBC TV's Dragons' Den is ranked joint 377th with a £280m wealth. His Ryman, Robert Dyas and Boux Avenue chains performed well, and stakes in other businesses netted a combined profit of £10m in 2014-15. Paphitis also turned around the La Senza lingerie chain and netted £100m from its sales.
Toni Mascolo (Tony & Guy)
The Tony & Guy hairdressing business founder is at 389 with a £270m wealth – that’s holding steady compared with 2015.
Julian Dunkerton (SuperGroup)
The entrepreneur started the SuperGroup fashion company as a market stall. It is now worth £753m. His wealth is £338m, a £75m rise, which puts him at 324 on the list.
Malcolm Walker (Iceland)
The boss of frozen food company Iceland is at 456 with a £226m wealth. He founded the business in 1970 as a small shop with £30 capital.
Jamie and Jools Oliver (food entrepreneur)
The celebrity chef and his wife saw their wealth decline by £20m to £160m. They are at 640 on the Rich List.
Natalie Massenet (Net-a-Porter)
The founder of the London-based online fashion boutique is climbing the list after selling up. She ranks joint 754th with £135m. She made £50m when a stake was sold to luxury goods group Richemont and another £100m when she sold her remaining stake.
Duncan Bannatyne (Bannatyne Fitness)
Former Dragons' Den panellist Bannatyne saw profits at his Bannatyne Fitness group fall to £3.5m in 2014, while his Darlington-based hotels business made a profit of £900,000. He places at 515 on the Rich List, with a worth of £200m.
Sir Martin Sorrell (WPP)
Sorrell is the CEO of WPP advertising group. He has a sizeable stake in the group and is worth £395m, up £70 on 2015. He ranks 288 on the Rich List.