Wiltshire inventor Sir James Dyson tops the region's annual Rich List.
The Sunday Times say he made £3.1 billion in the past 12 months and is now worth more than £12-billion.
Brexit-backer Peter Hargreaves, who founded Bristol's Hargreaves Lansdown, is in second place with his partner Steve Lansdown fourth.
Christina Ong who founded Somerset fashion brand Mulberry is sixth.
Somerset-based shoemaker's the Clark's family are in 12th place and Dorset-based Mark and Mo Constantine - who started Lush cosmetics -are 15th.
The Sunday Times says:
SIR JAMES DYSON
Dyson, 72, has seen his wealth grow by £3.1bn in the past 12 months to now stand at £12.6bn. The inventor has recently announced that he is to move his company headquarters from Wiltshire to Singapore, a move that has caused no little controversy, but the Brexit-backer insisted he is simply moving his technology giant closer to its fastest-growing markets.
Famed for his bagless vacuum cleaner, Dyson is exploring futuristic technologies including machine learning and artificial intelligence. He is still investing heavily in Britain, pouring £200m into the Dyson Automotive project, where two wartime aircraft hangars are being transformed into electric-vehicle development and testing centres.
It took Dyson 15 years and 5,127 prototypes to get the first Dyson dual-cyclone vacuum cleaner on the market. In 2018, profits burst through the billion-pound barrier, climbing to £1.1bn on £4.4bn sales, and his empire is worth £11bn. He and his family have taken nearly £500m in salaries and dividends since 1999, and with 25,000 acres in his portfolio, he is a bigger landowner than the Queen.
The 71 year old 'Queen of Bond Street' has seen the value of her shares in Mulberry plummet by more than half in the past 12 months. The fashion and accessories business was hit by the collapse of House of Fraser, where the Somerset-based outfit had concessions. Ong owns 56.17% of the label, and her stake is down £193m to £104.2m. Despite her husband Ong Beng Seng’s £1.98bn Singapore operation, Hotel Properties, the Ong family are the biggest losers on the Southwest Rich List.
THE CLARKS FAMILY
The Clark Family are ranked 12th in this year’s Southwest Rich List, down from ninth last year, with a fortune of £484m, down £86m. Lance Clark died last March aged 81, and was the sixth generation of his family to lead the Somerset-based shoemaker. Sales fell by 7% to nearly £1.54bn in 2017-18, but profits slid only marginally to £19.7m. Clarks shoes was originally set up as C&J Clark in 1825 by Cyrus and James Clark, the latter of whom had the idea of making slippers from sheepskin offcuts. The business started from there, and 84.6% is still owned by the Clarks, who should have received nearly £100m in dividends over the past five years.
PETER HARGREAVES and STEVE LANSDOWN
Financial services tycoon Peter Hargreaves who is worth £3.046bn, down £118m on last year. The Brexit-backer said last year that he would “guarantee my entire wealth that no deal will get us free trade [with the EU], because the three biggest economies in Europe are huge exporters to the UK. That’s Germany, France and Italy.” Hargreaves, 72, co-founded the Bristol-based Hargreaves Lansdown financial services and investment business in 1981 with Steve Lansdown, who ranks fourth in the Southwest with a £1.72bn fortune. The firm is worth £8.59bn, and Hargreaves stake is down £145m to nearly £2.77bn.
MARK & MO CONSTANTINE
Mark and Mo Constantine have had another successful year, up £150m to £440m, which has earned them a ranking of 15th in the Southwest. Constantine, 66, and his wife Mo, 65, started their Lush cosmetics company in Poole, Dorset, and its fizzy bath bombs are the emergency Christmas present of choice from 105 UK stores and 900-plus outlets worldwide. Lush is valued at £700m, with the Constantines holding worth £393m.