Joseph Lewis net worth: Joseph Lewis is a British businessman who has a net worth of $3.9 billion dollars. Born in Bow, London, England, Joseph Lewis began working for his father's catering business when he was fifteen. He dropped out of school in order to help support his family. He subsequently took over his father's catering business, and expanded it to include luxury goods and nightclub ownership. In the late 70s, he sold it for a substantial profit. He then became involved in currency trading, and relocated to the Bahamas to live tax-free. He is the primary investor in the Tavistock Group, an umbrella entity which owns over 200 companies spread out over fifteen countries, including sports teams, energy companies, restaurants, private luxury properties, resorts, factories, and even a hospital. He is also an avid art collector, and owns works by Picasso, Matisse, Francis Bacon, and Henry Moore, among other major artists.