MFour names Clark as COO

Clark (pictured) joins from YP Marketing Solutions, where he was chief technology officer. He has also held senior roles at Spot Runner, NextGen Healthcare, AT&T Interactive and Yahoo.

“The hardest thing to do is scale a business and remain consistent with quality technology, product innovation, and client service,” said Chris St. Hilaire, CEO and founder of MFour.

“Darren will be instrumental in making sure we don’t just grow our business, but that we increase our value to the clients who rely on us for the best technology and service.”