Shark Tank

Meet The Sharks

Barbara Corcoran

Barbara Corcoran’s credits include straight D’s in high school and college, and 20 jobs by the time she turned 23. It was her next job that would make her one of the most successful entrepreneurs in the country: She borrowed $1,000 and quit her job as a waitress to start a tiny real estate company in New York City. Over the next 25 years, she would parlay that $1,000 loan into a $5 billion real estate business, building the largest and best-known brand in the business. Corcoran is the author of the bestseller “Shark Tales: How I Turned $1,000 into a Billion Dollar Business.”

Corcoran is a motivational and inspirational speaker. She is a frequent small business and real estate contributor on every major network. Corcoran has been an investor/Shark for the past 11 seasons on ABC’s three-time Emmy® Award-winning show “Shark Tank.”

Follow her on Twitter and Instagram.

Mark Cuban

Mark Cuban is an investor who lives for his family, his “Shark Tank” companies and the Dallas Mavericks. He is the owner of the 2011 World Champion Dallas Mavericks and bestselling author of “How to Win at the Sport of Business,” and was an entrepreneur from the early age of 12 when he sold garbage bags door to door. Today, Cuban is the highly successful entrepreneur and investor with an ever-growing portfolio of businesses.

Named a winner of the GQ Men of the Year in 2006 and included in The New York Times Magazine’s Year in Ideas, Cuban is recognized as being among the most influential people in both the cable and sports industries. He may be best known for his purchase of the Dallas Mavericks on Jan. 4, 2000. Under his leadership, the team’s home games have become a total entertainment experience. Despite initial criticism, he added much more to the usual game-day experience options, like the Mavericks ManiAACs. His successful efforts have brought a sense of pride and passion to the fans.

Prior to his purchase of the Mavericks, Cuban co-founded, the leading provider of multimedia and streaming on the Internet. was sold to Yahoo! Inc. in July 1999. MicroSolutions, a leading national systems integrator, was co-founded by Cuban and partner Martin Woodall in 1983, and later sold to CompuServe.

Currently, Cuban is the chairman of AXS TV ( AXS TV and its sister network, HDNet Movies, are among the only remaining independently owned and operated TV networks in the U.S. and the first in the world to be programmed exclusively in high definition. AXS TV continues to outperform networks owned by much larger corporations and those with greater distribution.

Cuban also co-owns the Landmark Theater chain, Magnolia Pictures and Magnolia Home Video, along with partner Todd Wagner. With the release of the movie “Bubble” in 2005, Magnolia and Landmark Theaters pioneered the release of the movie’s “day and date,” meaning the movie was released in theaters, on TV (HDNet Movies) and on DVD all on the same day. Taking this process one step further, Cuban created the Ultra VOD platform, releasing movies to video on demand on both cable and satellite up to four weeks prior to their release in theaters.

You can follow Cuban on Twitter and at

Lori Greiner

Lori Greiner started with one idea and turned it into a multimillion-dollar international brand. She is regarded as one of the most prolific inventors of retail products, having created over 500 products, and currently holds over 120 U.S. and international patents. A well-known celebrity personality on QVC-TV, Greiner has hosted her own show, “Clever & Unique Creations by Lori Greiner,” for over 20 years.

Greiner can tell instantly if a product is a “hero or a zero,” and this is clearly shown through her many thriving investments and a 90% success rate on her new items launched. She’s also well known for her impeccable negotiating skills and her uncanny ability to know and identify emerging brands and invest in them. Greiner is proud that several of her investments are some of the most successful stories on “Shark Tank” to date. She loves the relationships she has created with her “Shark Tank” entrepreneurs, likening them to one big family. 

Greiner’s cleverly designed products cover a large range, as she is constantly adding new items. From must-have organizers for the home and kitchen tools to travel bags and clever solutions for everyday problems, her products are enjoyed by men and women alike. She is known for creating some of the most popular jewelry and cosmetic organizers of all time. Greiner’s inspiration comes from her passion to bring happiness to people by making their everyday lives easier. Her products are sold on QVC and in retailers across the U.S. and in Europe.

Greiner’s accomplishments come from her sharp instincts and strong business sense. She oversees the legal and patent processes, and has driven her business to the success it has achieved. An expert on patenting, she is hands-on in all facets of taking a product from concept to creation and to market within months in lightning speed. She has also helped many budding entrepreneurs turn their ideas into hit products. At the heart of Greiner’s own success is a combination of talent, hard work and perseverance, as well as sincere, energetic on-air appeal.

A great believer that, if you are lucky enough to be successful, you have a responsibility to give back, Greiner’s most gratifying moments come when she is able to help budding entrepreneurs achieve the same success she feels lucky enough to have enjoyed. She also believes that what matters most in life is who a person is and what is in their soul. She and her company annually donate a substantial amount of their profits to a variety of charities. Her all-American success story is refreshing in today’s challenging economy. Her inventions address the everyday needs of a wide range of people, and her affordable pricing makes her products accessible, allowing her to spread her enthusiasm for problem-solving to millions.

Grenier, in her effort to “pay it forward,” wrote her first book, “Invent It, Sell It, Bank It” (Random House, 2014), which is a national bestseller, named one of the top 10 business books by, and also made Wall Street Journal’s top business books of 2014. “Invent It, Sell It, Bank It,” is a hands-on, nuts-and-bolts guide to getting a product off the ground and making it a success. She takes you step by step on how to turn an idea into a million-dollar reality. Another part of the book’s tremendous popularity is the personal stories Grenier shares about her journey.

In addition, she is a much sought-after speaker for high-profile companies such as Chase, IBM, PayPal, American Heart Association and several others, inspiring others to achieve their goals and dreams as she has, and offers in her book and onstage the recipe to achieve great success. This also adds to Grenier’s philosophy of helping others and sharing her experience to benefit others - all in an entertaining way.

Greiner’s products are regularly featured in top magazines like O, The Oprah Magazine, InStyle, Woman’s Day and Family Circle. She has also been profiled in Financial Times, Forbes, Success, Entrepreneur and has appeared on “The View,” Bloomberg, CNN and many others. Her Initial Silver Safekeeper was chosen as one of Oprah’s favorite things.

Follow Greiner on Facebook, Twitter, Instagram and on her own website,

Robert Herjavec

Robert Herjavec is one of North America’s most recognizable and respected business leaders. Born in Eastern Europe, he arrived to North America on a boat with his parents after escaping communism in the former Yugoslavia. From delivering newspapers and waiting tables to launching a computer company from his basement, his drive to achieve has led him to the fulfillment of a better life for himself and his family.

A dynamic entrepreneur, Herjavec has built and sold several IT companies. In 2003, he founded Herjavec Group and it quickly became one of North America’s fastest growing technology companies. Today, Herjavec Group is a global leader in information security specializing in managed security services, consulting, delivery and incident response for enterprise level organizations. Herjavec’s ability to interpret industry trends and understand enterprise business security demands has helped him achieve the profile of a global cybersecurity expert. He has served as a cybersecurity advisor for the government of Canada, participated in the White House summit on cybersecurity and is a member of the U.S. Chamber of Commerce Task Force for Cybersecurity. His views on the threat landscape, emerging technologies and need for a proactive security framework are regularly profiled across print, digital and television mediums. 

His inspiring books “Driven,” “The Will to Win” and most recently, “You Don’t Have to Be a Shark,” have earned him the title of bestselling author.

To Herjavec, running a business is a lot like one of his greatest passions: racing cars. He believes, “You have to stay laser-focused when driving a car over 200 miles an hour, and the same approach is required when growing a business in today’s world of rapidly changing technology.”

Herjavec is married to “Dancing with the Stars” pro Kym Johnson and splits his time between Toronto and Los Angeles. He is the proud father of five children. Herjavec is involved with many charities, including the Humane Society, the American Cancer Society, PLAY – Physical Lifestyles for Autistic Youth and Seattle’s Union Gospel Mission. You can follow Herjavec on Twitter, LinkedIn, and

Daymond John

Daymond John is CEO and founder of FUBU, a much-celebrated global lifestyle brand with more than $6 billion in sales. Now in his 11th season on the three-time Emmy® Award-winning series “Shark Tank,” John continues to challenge himself in all aspects of business.

A New York Times bestselling author for his 2016 book, “The Power of Broke,” John’s commitment to entrepreneurship has been celebrated on a global level. In 2015, he was named a presidential ambassador for Global Entrepreneurship and was part of an exclusive group who joined President Obama at the Global Entrepreneur Summit in Kenya, and traveled with the president on his historic trip to Cuba in March 2016. Additionally in 2017, John launched the creative executive co-working space, blueprint+co. Its mission is to educate and empower by building a community of like-minded entrepreneurs that can benefit from his resources and track record of success.

Follow John on Twitter.

Kevin O'Leary

As the son of a travelling ILO executive, Kevin O’Leary lived and was educated in Cambodia, Cyprus, Tunisia, Ethiopia, France and Switzerland. After receiving his Master of Business Administration, he founded Special Event Television, an independent production company producing such original sports programming as “The Original Six,” “Don Cherry’s Grapevine” and “Bobby Orr and the Hockey Legends.”

In 1986, O’Leary founded SoftKey Software Products (later called The Learning Company), the first software company to apply the principles of consumer goods marketing to the software industry. SoftKey grew quickly as the price of personal computers declined, and millions of American families began to buy software for education and entertainment. SoftKey soon became a catalyst of consolidation in the software industry, raising over $1 billion in financing and completing a series of aggressive acquisitions, including WordStar International, Spinnaker Software, Compton’s New Media, The Learning Company, Creative Wonders, The Minnesota Educational Computer Company, Mindscape and Broderbund. By 1998, O’Leary’s company was the undisputed world leader in educational, reference and home productivity software, and the world’s second–largest consumer software company, with annual sales over $800 million, 2,000 employees and offices in 15 countries. In 1999, Mattel acquired the company for $4.2 billion.

In 2003, O’Leary co-founded Storage Now, a leading developer of climate–controlled storage facilities. Through development projects and acquisitions, Storage Now soon had operations in 11 cities, serving such companies as Merck and Pfizer, and was acquired by In Storage REIT in March 2007 for $110 million. In 2007, O’Leary became a founding investor and director of Boston–based Stream Global Services Inc., focused on the growing outsourcing business services market. 

Today, O’Leary leads the O’Leary Financial Group – a group of companies that includes O’Shares ETFs, O’Leary Publishing and a continually growing roster of other businesses. He is also the founder and chief sommelier of O’Leary Fine Wines, an award-winning wine label, as well as a member of Boston’s 107-year-old Hamilton Trust.

In addition to “Shark Tank,” O’Leary co-hosted Discovery Channel’s “Project Earth” television series that explored the financial implications of global climate change, and he is a regular contributor on CNBC. O’Leary is an avid guitarist, photographer and author. He has written three bestselling books, including “Cold Hard Truth on Men, Women and Money,” and most recently, “Cold Hard Truth on Family, Kids and Money.”

Find and follow Kevin O’Leary online at, Twitter and Facebook.