3. Hy Conn LLC
At number 3 of our list of most successful Shark Tank rejects is Jeff Stroope, own of Hy Conn, who demanded $500,000 in exchange for a 40% part of his company. He showed that his product reduced the time it takes to connect a fire hose to a hydrant, which in turn could result saving more lives. While a deal worth $1.25 million in addition to other benefits was made, this later fell through, mainly because of Cuban, according to Stroope. While NerdWallet has claimed the company is worth over $5 million, its Facebook page has remained inactive for a while, suggesting that it may be slightly struggling.