Who Are the 2 Most Active Sharks on Shark Tank
The two most active Sharks on Shark Tank based on recent deal volume are Mark Cuban and Lori Greiner. Mark Cuban has invested in over 150 companies through the show and his fund, while Lori Greiner has funded more than 100 deals. Both have backed products that later generated over $1 billion in retail sales. Their combined portfolio includes household brands across health, food, and consumer tech. Cuban focuses on scalable digital businesses, while Greiner favors consumer products with strong retail potential. Their activity has shaped the show's reputation as a real funding source for startups.
Other Sharks like Daymond John, Robert Herjavec, and Barbara Corcoran have also made hundreds of deals, but Cuban and Greiner consistently rank at the top for new investments per season. Cuban's Shark Tank fund and Greiner's company, For Your Ease Only, Inc., drive much of their deal flow. The show's official stats page lists their cumulative investments, and third-party trackers such as Shark Tank Stats provide updated deal counts. These two Sharks have become the default reference point for entrepreneurs seeking equity funding on the program.
What 2 Sharks Look for in a Deal
Mark Cuban evaluates deals based on scalable revenue models, low customer acquisition cost, and strong unit economics. He often asks for a clear path to $1 million in annual revenue within three years. Lori Greiner prioritizes products with broad consumer appeal, strong patent protection, and a realistic retail strategy. She frequently asks for a clear sales history and a plan to scale beyond the show. Both Sharks use due diligence checklists that include financial projections, founder background checks, and competitive landscape analysis.
Cuban has publicly stated that he looks for founders who understand their cash flow and can explain their burn rate. Greiner has emphasized the importance of a product that solves a real problem and can be sold in major retail chains. Their combined criteria filter out most pitches, resulting in a deal acceptance rate below 2% of all Shark Tank appearances. Entrepreneurs who secure investment from either of the 2 Sharks often see a sharp increase in credibility and sales velocity.
How the 2 Sharks' Investments Perform After Shark Tank
Data from the Shark Tank Stats database and public SEC filings show that Cuban-backed companies have a higher survival rate than the average startup. His investments in companies like Beatport and Cyber Dust have generated strong returns, while others have failed. Greiner's portfolio includes brands such as Scrub Daddy and Squatty Potty, which have grown into multi-million dollar businesses. Both Sharks have noted that post-show execution by founders is the biggest factor in long-term performance.
The SEC's EDGAR system contains filings for several companies backed by the 2 Sharks, including equity raises and revenue disclosures. Forbes and Bloomberg have reported on specific Shark Tank exits, noting that Cuban and Greiner have achieved both major wins and total losses. Cuban's Shark Fund and Greiner's fund have published performance summaries showing a mix of high-growth successes and write-offs. Entrepreneurs seeking capital from these Sharks must present realistic projections and a clear plan for scaling after the show.