Maplin Electronics' Commercial Director Graham Harris says its really important for entrepreneurs to "really understand their customer and the market" they're trying to tackle.
Can Nathalie handle the heat of the facing the judges for the very first time? She presents her lobster inspired chef-wear.
Staying cool in front of our judges, Arran presents his Bluetooth cool box.
Judge and mentor Pete Wild explains why knowing your market is key.
Arran visits one of the U.K.'s biggest electronics retailers to try to convince them to stock his product.
Nathalie visits one of the U.K.'s fastest growing home-wear retailers to try to convince them to stock her product.
Nathalie Cuffy visits a factory in China to make sure that her chef-wear products are being made to her specifications.
Both Nathalie and Arran set up their pop-up shops to try and test the market for their unique products.
Arran Campbell visits a factory in China to make sure that the speakers for his cool-box are being made to his specifications.
My Kool Box Director Arran Campbell explains his new device, which features on the CNBC show Pop Up Start Up.
The investor and entrepreneur believes it's myth that you learn useful lessons from failing.
The CEO of Blackstone reveals how he learned to negotiate.
NFL Hall-of-Famer Emmitt Smith, The Gents Place co-owner, talks about his high-end spa for men. It's one of the fastest-growing segments in the beauty care line, says Smith.
CNBC's Kate Rogers hits the road to find out if the upbeat trend in small business has legs.
A former Wall Street lawyer opened a chain of Colorado bed and breakfasts where guests can freely smoke pot.
Small-business optimism soars, with Main Street banking Donald Trump's inauguration will usher in a new era of business-friendly policies. CNBC's Kate Rogers reports.
James Meekings, co-founder of Funding Circle, discusses his small business lending platform.
CNBC'S Kate Rogers breaks down the latest data on how small business owners feel about the economy.
Rajan Anandan at Google talks about the impact of connecting small businesses in India to the internet.
Ravin Gandhi, Co-Founder and CEO *YPO Member*, GMM Nonstick Coatings, Ryan Gilliam, Pediatric Behavioral Services, and CNBC's Kate Rogers discuss the impact of Trump's policies on small businesses in America.