Bloomberg Billionaires Index

View profiles for each of the world’s 500 richest people, see the biggest movers, and compare fortunes or track returns.

# 108 James Dyson $16.1B

Random fact: Knighted by Queen Elizabeth II in 2006.


Dyson is the founder and chief engineer of Dyson Holdings Pte., a Singapore-based company that designs and manufactures a range of products including vacuum cleaners, fans and hand dryers. The closely held, family-owned business had revenue of 6 billion pounds ($7.4 billion) for the 2021 calendar year.

As of :
Last change -$190M ( -1.2%)
YTD change +$1.25B ( +8.4%)
Biggest asset Dyson
Country / Region United Kingdom
Age 75
Industry Consumer
View net worth over:   Max 1 year 1 quarter 1 month 1 week

Relative Value

James Dyson's net worth of $16.1B can buy ...

troy ounces of gold
barrels of crude oil

... and is equivalent to ...

of the GDP of the United States
of the total wealth of the 500 richest people in the world
of the top 100 U.S. college endowments
of the top 200 U.S. executives’ total awarded compensation
of U.S. existing home sales
times the median U.S. household income

Latest News

Net Worth Summary

Private asset
Public asset
Misc. liabilities
Confidence rating:

The majority of Dyson's fortune is derived from closely held Dyson Holdings Pte., the household appliance manufacturer that makes the UK's best-selling vacuum cleaner, according to the Euromonitor website. 

The company reported revenue of 6 billion pounds ($7.4 billion) in 2021, according to the company's website. The valuation is based on the average enterprise value-to-sales and enterprise value-to-Ebitda multiples of three publicly traded peer companies: De'Longhi, Techtronic Industries and SEB.

He also owns farmland, which is valued using its net asset value, as disclosed in the 2021 accounts of holding company Dyson Farming.

His 300-acre Gloucestershire estate is valued at market prices for similar assets in the region, according to a property broker who asked not to be identified because the information is private. The valuation of Dyson's fortune also includes an analysis of property purchases, charitable donations, dividends, insider transactions, asset sales and taxes.

A spokesperson for Dyson declined to comment on the net wealth calculation.


Family: Married, 3 children

James Dyson was born in Norfolk, England on May 2, 1947, the third child of Alec and Mary Dyson, who were both teachers. His father died of liver cancer when he was 9. He was sent to Gresham's, a Norfolk boarding school, the same year.

Dyson enrolled at London's Byam Shaw School of Art in 1965. He left after a year to attend the Royal College of Art, where he studied furniture and interior design, and met Jeremy Fry, an engineer who offered him a job designing an amphibious landing craft in 1970. Four years later, Dyson left to start his own company after inventing a wheelbarrow with a load-spreading red ball instead of a wheel.

Against Dyson's wishes, the invention was sold off a few years later by his business partners, who'd become majority shareholders. He started working on a bagless vacuum cleaner in 1979, which he developed using the principle of cyclonic separation. He first saw the process at an industrial sawmill, which used a vortex to remove particles from the air, and decided to apply it to a domestic appliance.

He spent five years refining the idea and, after 5,126 prototypes, licensed the technology to a Japanese company. The royalties he received enabled him to begin selling a bagless machine, the DC01, under his own name in the UK in 1993. It became the country's most popular model within two years. He repeated the feat nine years later when debuted the DC07 in the US.

Dyson released a hand dryer in 2006, a bladeless fan in 2010, and various iterations of his vacuum cleaner. He regularly appears in the UK press and criticized the UK's dearth of engineering graduates and innovation in 2013, which he said was limiting his company's growth.

Dyson married artist Deirdre Hindmarsh in 1968. They have three children -- Emily, a fashion designer, Jacob, a lighting designer, and Sam, a musician.

  • 1974 Invents the Ballbarrow, a wheelbarrow with a ball-wheel.
  • 1983 Completes the design of his first bagless vacuum cleaner.
  • 1986 Licenses his bagless vacuum technology in Japan.
  • 1993 Sells DC01, the first Dyson vacuum cleaner, in the UK market.
  • 2000 Wins lawsuit against Hoover over copying his vacuum mechanism.
  • 2006 A Dyson hand dryer is introduced.
  • 2007 Knighted by Queen Elizabeth II at Buckingham Palace.
  • 2013 Sues Samsung for infringing on Dyson's vacuum cleaner patents.
  • 2014 Funds engineering research center at Cambridge University.