To keep innovating, a business needs fresh thinking. But how can a business keep its spark? 

At a recent roundtable, we talked to several founders from our Top 30 Startups to Watch about what keeps them inspired. They stoke excitement by staying open to a range of influences -- including, in one case, feedback sent in from an eight-year-old boy. 

Take a look at how these companies stay inspired and tune back in for the next episode of this five-part video series shot during the last Empact Showcase held at the United Nations.

Related:

Want to Innovate? Get Uncomfortable. (Part 1 of 5)

Why Business Owners Should Study Improv (Part 2 of 5)

Be Careful: Don't Lose That Startup Mentality (Part 3 of 5)

Where Do Great Ideas Come From? (Part 5 of 5)