Top Pot was founded in 2002 by brothers Mark and Michael Klebeck. Here's the story of how the chain got its name, from the website:
"Years earlier, two of our co-founders spied a vintage rustic (and rusty) neon sign gleaming above a boarded-up Chinese restaurant called 'Topspot'. They bought the sign, and then left it idle in a backyard for four years, further rusting and creating a home for raccoons. Then, when the sign was finally driven off to be restored, the center 'S' fell off, leaving the words 'Top Pot' behind."