PRINCETON, N.J.--(BUSINESS WIRE)--Heartland Payment Systems (NYSE:HPY), one of the nation’s largest payment processors, today announced it has been named the top company to sell for by Selling Power magazine. This 2015 achievement marks the eighth consecutive year Heartland has received a top five distinction on Selling Power’s “50 Best Companies to Sell For” ranking and the fifth time Heartland has received the top spot. Selling Power has compiled the list for 15 years and evaluates companies