Tiffany Stewart – Mark Cuban’s wife
His Net Worth: $5.7 Billion

As we all know, Mark Cuban is a billionaire with an excellent eye for new investments. Since 2009, the outspoken billionaire and owner of the Dallas Mavericks has been a Shark Tank investor. Millions of people (8.2 million to be exact) have sought his advice and hot thoughts on current events. Cuban is generous with his opinions, but he shares his $5.7 billion fortune with only one person: Tiffany Stewart.

Many of us aspire to have a fraction of Cuban’s success, but Stewart appears to be capable of doing so with or without it. She is a former advertising executive and the mother of three children. Stewart has shifted her focus from advertising to philanthropy. Since then, she has been hands-on with several charities, including Hoops n’ Hopes and the Mays Foundation. Even if Cuban loves to claim that he’s a superb multi-tasker, Stewart has a role in managing her husband’s business activities.