The richest person in British advertising and media in 2026 is Sir Len Blavatnik, with a reported net worth of about $26 billion. The list covers the ten biggest fortunes built on publishing, broadcasting, music, outdoor advertising and media ownership in the UK, ranked by our own estimates as of October 2026. Richard Desmond follows at an estimated $1.7 billion, based on a published UK rich list figure of £1.3 billion.
| Rank | Name | Estimated net worth |
|---|---|---|
| 1 | Sir Len Blavatnik | $26 billion |
| 2 | Richard Desmond | $1.7 billion |
| 3 | Lord Rothermere and family | $1.3 billion |
| 4 | Jean-Francois Decaux and family | $1.2 billion |
| 5 | Sir Paul Marshall | $1.1 billion |
| 6 | Mark Getty and family | $1 billion |
| 7 | Mike Danson | $700 million |
| 8 | Simon Cowell | $500 million |
| 9 | Lord Heseltine and family | $350 million |
| 10 | Elisabeth Murdoch | $200 million |
1. Sir Len Blavatnik: reported at about $26 billion
Sir Len Blavatnik is the British-American founder of Access Industries, which he started in 1986. Its media and entertainment holdings include Warner Music Group, which Access bought in 2011 for $3.3 billion and listed on Nasdaq in 2020, and the sports streaming service DAZN. Access also invested €100 million in the music streamer Deezer in 2012.
The $26 billion is a reported 2025 estimate. Warner Music Group alone had a market value of about $16 billion in October 2026, with Access Industries’ other holdings on top, so treat it as a ballpark.
2. Richard Desmond: estimated at $1.7 billion
Richard Desmond is a publisher and businessman who built Northern & Shell, the publisher behind OK! magazine, and owned Express Newspapers, which he bought in 2000. He sold Channel 5 to Viacom in 2014 for a reported £450 million to £463 million, and sold Express Newspapers to Reach in 2018 for £200 million. He now splits his time between London and Dubai, and property development is a growing part of his business.
A published UK rich list put him at £1.3 billion in 2025, about $1.7 billion, and that number leans on his sale proceeds, property and remaining company holdings.
3. Lord Rothermere and family: put at around $1.3 billion
Jonathan Harmsworth, the 4th Viscount Rothermere, is chairman of DMGT, the owner of the Daily Mail, which he has led since 1998 and took fully private in 2021 in a deal that valued the public shares at about £1.6 billion. DMGT agreed in November 2025 to take over the Telegraph, but Axel Springer completed the acquisition of the Telegraph Media Group on 30 June 2026 instead.
We built this from a published estimate of roughly £1 billion in 2015, or about $1.3 billion. DMGT is private now, so no fresh number exists and the figure stays a rough guess.
4. Jean-Francois Decaux and family: near $1.2 billion
Jean-Francois Decaux is co-CEO of JCDecaux alongside his brother, and the two alternate the chief executive role each year. JCDecaux is the world’s largest outdoor advertising company, running bus shelters, billboards and street furniture. He is the son of founder Jean-Claude Decaux, and the family-owned JCDecaux Holding controls about 70% of the company.
JCDecaux had a market value of about €5.3 billion (roughly $6 billion) in October 2026, and the family holding controls about 70% of it. Splitting that across the family is our assumption, which makes the $1.2 billion approximate.
5. Sir Paul Marshall: close to $1.1 billion
Sir Paul Marshall co-founded the hedge fund Marshall Wace in 1997, which manages over $50 billion. He bought The Spectator for £100 million in 2024, has funded UnHerd since 2017 and co-owns GB News, building a media group alongside his fund. His wealth still comes mostly from the fund.
The $1.1 billion converts a £875 million rich list figure from 2024, and most of it comes from his Marshall Wace stake.
6. Mark Getty and family: about $1 billion
Mark Getty is a businessman and the co-founder and chairman of Getty Images, which he started with Jonathan Klein in the mid-1990s after beginning his career at Kidder Peabody in New York and Hambros Bank in London. The Getty family owns about 37% of the company. A planned $3.7 billion merger with Shutterstock, announced in January 2025, was effectively ended in July 2026.
Our $1 billion rests on the family’s roughly 37% holding in Getty Images plus other assets. We found no recent published figure, so it is a rough estimate.
7. Mike Danson: roughly $700 million
Mike Danson co-founded the market research business Datamonitor in 1989, which Informa bought in 2007 for £513 million in cash. He went on to build GlobalData and owns the New Statesman Media Group.
The $700 million comes from his share of the £513 million Datamonitor sale and what he built afterwards. No recent published figure turned up, so call it a rough estimate.
8. Simon Cowell: valued near $500 million
Simon Cowell is the TV star and producer behind the Got Talent format and the Syco Entertainment label. He founded Syco Entertainment in 2005, and the Got Talent format has been sold in more than 60 countries.
A published rich list valued him at £385 million in 2019, which is about $500 million, and we found nothing newer, so the number is approximate.
9. Lord Heseltine and family: around $350 million
Lord Heseltine is a former Conservative cabinet minister and deputy prime minister. He built the publisher Haymarket, which is still privately owned, and has handed day-to-day running to his son Rupert. It publishes magazines and online titles in business and consumer sectors.
The last published figure was £264 million in 2013. We carried it forward to about $350 million as a rough estimate, since Haymarket is private and nothing newer was found.
10. Elisabeth Murdoch: in the region of $200 million
Elisabeth Murdoch founded the TV production company Shine in 2001 and sold it to News Corporation in 2011, reportedly making a personal profit of around £130 million. She co-founded the production company Sister in 2019.
Her reported profit of around £130 million from the Shine sale and her later holdings point to about $200 million. Family trust wealth is not public, so we left it out.
Special mentions
The Barclay family, Cristina Stenbeck, Felix Dennis and ASOS founder Nick Robertson featured in earlier versions of this list but are left off the ranking because no reliable current figure is available.
FAQ
Who is the richest person in British advertising and media?
Sir Len Blavatnik, with a reported net worth of about $26 billion. Much of it comes from Warner Music Group through his holding company Access Industries.
Who is the richest British newspaper owner?
Richard Desmond at an estimated $1.7 billion and Lord Rothermere at an estimated $1.3 billion lead the newspaper owners on our list.
Who joined the list in 2026?
Sir Len Blavatnik, Sir Paul Marshall and Simon Cowell are new entries. They replace the Barclay family, Felix Dennis, Nick Robertson and Cristina Stenbeck.
Is the Telegraph owned by DMGT?
No. DMGT agreed a deal in November 2025, but Axel Springer completed its acquisition of the Telegraph Media Group on 30 June 2026.
How are the figures estimated?
We combine company valuations, sale prices and holdings, and where a published rich list figure exists we convert it to dollars. Private stakes are rough estimates.
How we estimate net worth
Our estimates are based on public reporting, company valuations, and deal and earnings figures all compiled in an internal valuation model. They are approximate, and figures change over time as new information emerges.
For this list we used company market values, disclosed sale prices of media assets and published rich list figures. Where holdings are private the figures are rough estimates.
Last updated: October 2026.
