Leonid Radvinsky, the owner of OnlyFans, a site known for its adult content that is credited with revolutionizing the online porn industry, has died at the age of 43. Born in Ukraine and raised in Chicago, Radvinsky purchased the company in 2018 from its two UK-based founders. The site's popularity surged during the Covid-19 pandemic, landing him on Forbes' annual list of billionaires just three years later.

OnlyFans confirmed his death, stating that he 'passed away peacefully after a long battle with cancer' and requested privacy for his family.

Founded in 2016, OnlyFans is a social media platform where creators can post videos and photos and charge subscribers for tips or a monthly fee. While the platform hosts a variety of content, it is best known for its adult material, promoting interaction between creators and their subscribers.

Under Radvinsky's leadership, the company generated $1.4 billion in revenue from over £7 billion in transactions and boasted more than 377 million subscribers in 2024, with around 4.6 million creators actively posting content on the site.

Despite its success, OnlyFans faced scrutiny over content policing and regulatory challenges, particularly regarding the age verification of its users.

Radvinsky held an economics degree from Northwestern University and lived in Florida, where he continued to invest in tech companies through his venture capital firm, Leo.com. His philanthropic efforts included donations to the Memorial Sloan Kettering Cancer Center.