Mr. William Martin is the Co-Founder of ShopperTrak and also serves as its Senior Vice President of External Affairs. He serves as its Senior Vice President of External Affairs. He is also the Chairman on Shelfbucks. He led the merger and acquisition of RCT Systems in 2001 forming ShopperTrak RCT Inc. As an active principle in DrummersFive,LLC, Mr. Martin is helping startup companies build enduring business growth. DrummersFive believes in a balanced focus on sustainable top line growth, disciplined cost management and robust people development which leads to consistent bottom line profit. Mr.Martin also supports young companies such as BestFit Media, RailVeyor and ShelfBucks with private equity. Additionally, he has held the position of president at PowerCart America, a company that serves the retail industry by providing mobile checkout stands to support wireless point of sales equipment. Mr. Martin also currently serves as president and sits on the board of 308 Castle, a retail packaging and shipping company. He has held that position for the past 20 years. Previously, Mr. Martin held a number of management positions with Lanier Business Products from 1978 to 1991. He actively promotes the Chicago Youth Symphony Orchestra and sits on the Advisory Board for Mother Mary Sisters of the Eucharist, Grand Rapids, MI.