MORRISVILLE, N.C.--(BUSINESS WIRE)--SciQuest, Inc. (Nasdaq: SQI), a leading provider of cloud-based business automation solutions for spend management, today announced that it has opened the SciQuest Supplier Network to include all vendors and has significantly streamlined the registration process, making it much easier for new suppliers to join. The SciQuest Supplier Network, a global online portal that enables strategic interactions between customers and vendors, now allows customers to disco