I think a lot of the time the publicity helps a lot. I think the sharks can help sometimes. Like things with fashion and home good I think Lori and Daymond help get them into stores.
However probably the biggest shark tank success story: Ring. Ring didn't get a deal, but it is probably worth more then every other sharktank company combined.
This is it right here. If you watch enough of the show, you'll eventually discover that most of the savvy entrepreneurs are actually on the show pitching to the sharks for the publicity. The sharks know this is a problem, and this is why some of the most watchable scenes are when an entrepreneur gets an offer that matches his ridiculous original ask, but then rejects it. This basically proves they had no intention of actually going in for a deal, and most of the sharks (especially Mark Cuban) fly off the handle over it. Totally fun to watch.
However probably the biggest shark tank success story: Ring. Ring didn't get a deal, but it is probably worth more then every other sharktank company combined.