Billionaires of Britain: Top 5 Richest Businessmen of 2023.

Here are the Top 5 Richest Businessmen in Britain and their net worth as of April 2023.

1. Hinduja Brothers - with a combined net worth of £28.472 billion.

The Hinduja Brothers are a group of four Indian-origin British businessmen, namely Srichand Hinduja, Gopichand Hinduja, Prakash Hinduja, and Ashok Hinduja. 

The Hinduja Brothers are known for their investments in various industries such as banking, healthcare, and automotive. 

They are the founders of the Hinduja Group, a conglomerate that has interests in areas such as banking, oil and gas, automotive, and media. 

The group has operations in more than 30 countries and employs over 150,000 people worldwide.

2. Sir James Dyson - with a net worth of £23 billion.

Sir James Dyson is a British inventor, industrial designer, and entrepreneur who is best known for inventing the bagless vacuum cleaner. 

Dyson was born in Norfolk, England in 1947, and after graduating from the Royal College of Art in London, he started his own company, Dyson Ltd., in 1993.

In addition to vacuum cleaners, Dyson's company designs and manufactures a range of household appliances, including hair dryers, air purifiers, and hand dryers. 

The company also has a research and development center in Singapore, where Dyson is working on developing electric vehicles.

Dyson is known for his entrepreneurial spirit and his passion for innovation. 

He has been awarded numerous honors and awards for his work, including a knighthood from Queen Elizabeth II in 2007.

3. David and Simon Reuben - with a combined net worth of £22.265 billion.

David and Simon Reuben are British businessmen and philanthropists who are known for their investments in various industries such as real estate, metals, and data centers. 

They were born in India to a Jewish family and moved to the UK in the 1960s.

The Reuben brothers started their business careers in the metal trading industry, and then moved into other sectors such as real estate and private equity. 

They are the founders of the Reuben Brothers, a private investment company that has a diverse portfolio of investments across many industries.

4. Leonard Blavatnik - with a net worth of £20 billion.

Leonard Blavatnik is a British-American businessman and investor with a net worth of £23 billion, making him one of the richest people in the world. 

He was born on June 14, 1957, in Ukraine and grew up in Russia. 

He later moved to the United States and earned a master's degree in computer science from Columbia University.

Blavatnik is known for his investments in various industries such as media, oil, and real estate. 

In 1986, he founded Access Industries, a conglomerate that invests in various industries including natural resources, telecommunications, and chemicals. 

The company has investments in companies such as Warner Music Group, LyondellBasell, and Acision.

5. Guillaume Pousaz - with net worth of £19.259 

Guillaume Pousaz is the founder and CEO of Checkout.com, a global payment solutions provider. 

He founded Checkout.com in 2012, and under his leadership, the company has grown rapidly, processing more than $1.5 billion in transactions daily for businesses in more than 150 countries. 

Pousaz is widely regarded as one of the most influential figures in the fintech industry, and Checkout.com has been recognized as one of the fastest growing and most innovative companies in the sector.

It's important to note that net worth can fluctuate over time due to a variety of factors, including changes in the value of assets and fluctuations in the stock market, so these rankings are subject to change.