Just seven years ago, the Missoula, Montana business-technology consulting wing of Advanced Technology Group (ATG) consisted of two people in a basement. Today, ATG employs more than 130 people in its quote-to-cash billing solutions center. What is “quote to cash?” It’s the process of fine-tuning a customer’s interaction with a company from start to finish - or the “full lifecycle of managing a customer, through buying something from your company,” explains Claude Sammoury , ATG’s vice president