Affinity Partners GPO, an affiliate of TIPS-USA is a national group purchasing organization (GPO) for the private sector that leverages purchasing power for national, enterprise and regional purchasers of goods and services. In Partnership with TIPS-USA, a national government cooperative (GPO), Affinity Partners generates cost savings via increased purchasing power with a streamlined procurement process, saving time and creating value in pre-vetted suppliers that extend their government contracts to the private sector.