Among the investors who regularly appear on the program "Shark Tank" are Mark Cuban, Kevin O'Leary, Robert Herjavek and Barbara Corcoran. As of 2015, ABC-TV broadcasts the show on Friday nights.
The program allows budding entrepreneurs the opportunity to pitch start-up ideas and goals to investors, who listen as a group and then compete with each other for the opportunity to invest in the presented business. Sometimes, two or more investors might join forces and decide to offer a joint deal, and at other times, none of the investors are interested, leading to the entrepreneur walking away with no deal at all.
Each shark is extremely accomplished and a force to be reckoned with in the business world. Mark Cuban, who purchased the Dallas Mavericks in 2000, also owns the independent television networks HDNet and HDNet Movies, among other communications businesses. Kevin O'Leary launched his entrepreneurial career with SoftKey Software Products, which he started in his basement. He later sold the company to Mattel Toy Company for $3.7 billion. Ruthless, hard-driving and always targeting the bottom line during "Shark Tank" episodes, O'Leary is sarcastically known as "Mr. Wonderful."
In contrast to O'Leary, Herjavek is known as the shark with heart. Although not a pushover by any means, Herjavek's technological background gives him particular insight into tech-driven businesses. He sold his first company, BRAK Systems, to AT&T in 2000, and as of 2015, it has an estimated worth of more than $100 million. Herjavek operates The Herjavek Group, which specializes in IT security.
Barbara Corcoran is a real estate mogul who turned a $1,000 loan into a $5 billion business. She is also a sought-after speaker and best-selling author. The other two regular sharks on the program are Daymond John and Lori Greiner. Occasionally, special guests also join the shark ranks.