Mark Neyman, CC BY-SA 3.0, via Wikimedia Commons

billionaireentrepreneurfounderinvestorTop tier

Len Blavatnik

Entrepreneur · Access Industries · born June 14, 1957

$17.7Bolder estimate, as of 2019 · Forbes

About

Sir Leonard Blavatnik is a British-American businessman and philanthropist. As of April 2025, Forbes estimated his net worth at $26.5 billion, ranking him the 75th-richest person in the world.

Adapted from Wikipedia (CC BY-SA 4.0).

Milestones, by age

Dated facts from Wikidata; ages marked “about” come from year-only dates.

~29Founded Access Industries1986

Reported wealth

Each figure is a dated estimate from the publisher shown; wealth changes, and nothing here is live.

As of	Estimate	Source
2019	$17.7B	Forbes · current

Sources

Every fact on this page traces to one of these.

Sources (3)

Len Blavatnik (Q164997) · Wikidata
Len Blavatnik · Wikipedia
Len Blavatnik — Forbes net worth (via Wikidata) · Forbes · 2019

Also born on June 14

Len's most notable birthday twins

billionaire

Kumar Mangalam Birla

Entrepreneur

1967 · India

$11.1Bolder estimate, as of 2019 · Forbes

Kumar Mangalam Birla is an Indian billionaire businessman. He is the chairman of the Aditya Birla Group, one of the largest conglomerates in India.

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Sources (3)

Kumar Mangalam Birla (Q391072) · Wikidata
Kumar Mangalam Birla · Wikipedia
Kumar Mangalam Birla — Forbes net worth (via Wikidata) · Forbes · 2019

billionaire

Stanley Druckenmiller

Entrepreneur

1953 · United States

$7.8Bolder estimate, as of 2025 · Forbes

Stanley Freeman Druckenmiller is an American billionaire investor, philanthropist and former hedge fund manager. He is the former chairman and president of Duquesne Capital, which he founded in 1981.

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Sources (3)

Stanley Druckenmiller (Q7599568) · Wikidata
Stanley Druckenmiller · Wikipedia
Stanley Druckenmiller — Forbes net worth (via Wikidata) · Forbes · 2025

athlete

Steffi Graf

Athlete

1969 · Germany

Stefanie Maria Graf, known professionally as Steffi Graf and preferring to be called Stefanie since 2001, is a German former professional tennis player.

Steffi_Graf_in_Hamburg.jpg: Mark Henckel from Hamburg-Altona, Deutschland (http://sommer-in-hamburg.de/) derivative work, CC BY-SA 2.0, via Wikimedia Commons

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Sources (2)

Steffi Graf (Q11662) · Wikidata
Steffi Graf · Wikipedia

musician

Boy George

Musician

1961 · United Kingdom

George Alan O'Dowd, known professionally as Boy George, is a British musician, songwriter and DJ who rose to fame as the lead singer of the pop band Culture Club. He is also a solo artist and was the lead singer of the band Jesus Loves You.

Dean Stockings, CC BY-SA 4.0, via Wikimedia Commons

Sources (2)

Boy George (Q312883) · Wikidata
Boy George · Wikipedia

scientist

Karl Landsteiner

Scientist

1868–1943 · United States

Karl Landsteiner was an Austrian-American biologist, physician, and immunologist. He emigrated with his family to New York in 1923 at the age of 55 for professional opportunities, working for the Rockefeller Institute.

Bachrach Studios, Public domain, via Wikimedia Commons

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Sources (2)

Karl Landsteiner (Q84405) · Wikidata
Karl Landsteiner · Wikipedia

inventor

James Black

Inventor

1924–2010 · United Kingdom

Sir James Whyte Black was a Scottish physician and pharmacologist. Together with Gertrude B. Elion and George H.

Unknown authorUnknown author, CC BY 4.0, via Wikimedia Commons

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Sources (2)

James Black (Q110974) · Wikidata
James Black (pharmacologist) · Wikipedia