Len Blavatnik Net Worth

Len Blavatnik has an estimated net worth of $35.5 billion, according to Forbes Real-Time Billionaires, Len Blavatnik profile (figures as of October 20, 2026). That is up from $17.7 billion in 2019.

Len Blavatnik is a business owner and investor whose main company is Access Industries. He built his career across chemicals, energy, and media, and he owns most of Warner Music Group through Access. Forbes ties his wealth to music and chemicals. He is a self-made billionaire and a United States citizen. Access also holds stakes in LyondellBasell, Constellation Energy, and DigitalOcean, giving him a wide mix of businesses across several parts of the economy.

An early part of his fortune came from TNK-BP. Forbes notes that he received billions in dividends from that joint venture and sold his stake in 2013 for $7 billion. Another major step came in 2011, when he bought Warner Music for $3.3 billion. The company went public in June 2020 at a far higher value. Outside those core holdings, he has also been a producer on Broadway shows including The Front Page and Sunset Boulevard.

How Len Blavatnik makes money

Blavatnik founded Access Industries in 1986 and used it to invest in natural resources, chemicals, and entertainment. After the Soviet Union collapsed, he bought former state assets in Russia, especially in aluminum and oil. In 1997, Access joined with Renova Group and Alfa Group to form AAR. That group later helped create TNK-BP with BP. Forbes says the venture paid out billions in dividends and led to a 2013 exit worth $7 billion for his stake.

He later expanded far beyond oil. Access bought Basell Polyolefins in 2005, helping create LyondellBasell, where Forbes says his firm still holds a stake. In media, he bought Warner Music in 2011 for $3.3 billion and took it public in June 2020 at a much higher value. Access also built positions in Constellation Energy and DigitalOcean. His businesses include entertainment projects, and he has been a producer on Broadway shows such as The Front Page and Sunset Boulevard.

How Forbes' estimate changed

Forbes valued Blavatnik at $17.7 billion in 2019, then $17 billion in 2020. By 2021, that estimate had jumped to $32 billion, and Forbes put him at $32.5 billion in 2022. The increase came after major years for his portfolio, including Warner Music's public listing in June 2020 and his long-running holdings through Access Industries in chemicals, energy, and cloud infrastructure.

After that high point, Forbes moved its estimate to $32.1 billion in 2023 and kept it at $32.1 billion in 2024. The Forbes World's Billionaires List then put him at $29.9 billion in 2025 and again at $29.9 billion in 2026. As of October 20, 2026, Forbes' real-time tracker shows $35.5 billion. His wealth remains tied to a mix of music, chemicals, and other diversified investments held through Access Industries.