Changing utilities sounds easy, but Ed Kamm knows otherwise. Fluctuations in oil prices and an increasingly crowded market mean he has his work cut out, drilling a complex industry down to the level of a price comparison site. “The energy retail business is incredibly complex but our job is to keep this complexity from our customers and make everything work well for them,” he says. On his watch, customer numbers have grown from 300,000 to 700,000 and he was behind the company’s first TV ad in January 2015, which was part of a wider multichannel campaign.