Editor's note: This article is part of a series that looks at the impact of Shark Tank on the entrepreneurs and businesses that have appeared on the show.

When it comes to appearing on Shark Tank, sometimes the risk--of failing to get a deal; of being sneered at by Mr. Wonderful in front of millions of viewers--is worth the plunge.

Going on ABC's hit show, which starts its 10th season on October 7, doesn't guarantee you a deal with a celebrity investor. But it almost always guarantees a bump in revenue--one that until now has been a bit of a mystery.

After nine seasons on the air, Shark Tank has touched hundreds of companies in industries ranging from food to toilet gadgets, and Inc. set out to quantify the Shark Tank bump. This exclusive analysis uses historical revenue data from more than 250 companies appearing on the show--starting from the year the startup was launched to projections for 2018--regardless of whether a deal was accepted, a company has been profitable, or the founding structure of a company has changed since it appeared on the show.

As it turns out, in most cases, a company's revenue increased the year after it appeared on Shark Tank, occasionally doubling or tripling--and, in some cases, doing even better than that.