Stephen Schwarzman is a prominent American businessman renowned for co-founding The Blackstone Group, a global investment firm that manages over $650 billion in assets. Schwarzman has amassed a net worth of a staggering $35.5 billion as of October 2023, according to the Bloomberg Billionaires Index. Schwarzman's primary source of income and wealth accumulation is his association with The Blackstone Group. He co-founded the company in 1985, focusing on acquisitions and mergers, and played a pivotal role in its growth. His significant ownership stake in Blackstone, currently at 19%, contributes substantially to his net worth.