Early career In 1999, when Radvinsky was 17 years old, he helped incorporate Cybertania Inc., a website referral business. one of the involved websites advertised more than 10,000 "illegal pre-teen passwords".
Venture capital Radvinsky operated a
venture capital fund called "Leo", founded in 2009, which invests mainly in
tech companies. The fund's notable investments include Israel-based B4X and the social networking software
Pleroma. After this, OnlyFans became increasingly focused on
not safe for work (NSFW) content and "gained a pop culture reputation for being a hive of pornography". Radvinsky received $472million in dividends from the website in 2023, up from $338million and $284million in 2022 and 2021, respectively.
Philanthropy In 2024, Radvinsky and his wife were both major public supporters of a $23 million grant program for cancer research, which was announced at a
gastrointestinal research foundation gala. Radvinsky indicated on his personal website his aspiration to sign
The Giving Pledge, a public commitment by wealthy individuals to donate the majority of their fortune to philanthropic causes. ==Personal life==