10 Biggest Deals on Shark Tank

10. Drop Stop,

Deal: $300,000 for 20% stake

Creators Marc Newburger and Jeffrey Simon’s simple business idea of a car seat gap filler was a hit with Shark Lori Greiner, who bought 20% of stake in the business with $300,000. The simple yet highly functional product was a device which attached itself to the car’s seat belt to prevent car keys and other items to fall through the seat gap. The business has been growing ever since and they even did two QVCs after the show.