Chris Mumford

MEI, headquartered in West Chester , Pa. , holds the world’s largest installed base of unattended payment systems, handling over two billion transactions per week in more than 100 countries. The company developed the first electronic coin mechanism in the 1960s, followed by the first electronic non-contact bill acceptor, and more recently its credit card capability and vending management solution. Recently, MEI reached a milestone of selling more than four million bill acceptors and five million coin mechanisms worldwide. Its products are in widespread use in the vending, soft drink, gaming, amusement, transport, retail, and kiosk markets.