Biography
James Dyson is among the world's most closely watched billionaires from UNITED KINGDOM, with an estimated fortune of $14.9B. The bulk of James Dyson's wealth comes from Vacuums, closely tied to Vacuums. Sir James Dyson, born in 1947, is a renowned British inventor, industrial designer, and business magnate, best known as the founder of Dyson. He is celebrated for his innovative approach to engineering and design, with a career focused on developing products to solve everyday problems. Dyson's wealth stems from his successful company, Dyson, which revolutionized the household appliance industry with inventions like the bagless vacuum cleaner. His career is marked by his persistence in the face of setbacks, a drive that has made him a leading figure in the world of innovation. Dyson has consistently championed the importance of engineering and design education, establishing the James Dyson Foundation to inspire the next generation of engineers. He is a Fellow of the Royal Society, was appointed to the Order of Merit, and holds an honorary doctorate from the University of Bath. Key career milestones include Founded his own company (1974); Founded Dyson Appliances Limited (1991); Opened a plant in North Wiltshire (1993); Established the James Dyson Foundation (2002). This profile documents verified holdings, career milestones, and multi-year net worth history drawn from Forbes rankings, company filings where available, and our editorial methodology. Readers use it to understand how public markets, private company stakes, and major business bets shape one of the largest personal fortunes on record. Wealth estimates move with stock prices, funding rounds, and disclosed transactions—figures on this page are research estimates, not cash balances. We publish year-by-year net worth history when verified data exists, link to primary sources, and update profiles when Forbes Real-Time Billionaires or major filings change the picture materially. For investors and researchers, the most useful reading pairs the headline number with ownership structure, geography, sector exposure, and the multi-year history chart on this page—especially during volatile markets when single-day moves can shift rankings without any operational change at the underlying companies.