Purchasing consortia are big in the higher education space. Some have been around for a while and others are relatively new. When dabbling in travel, car rental contracts seem to be an entry point. Now, there are agreements covering hotels, travel agencies, T&E software and visa processing services. There's even a rare consortium air contract in play. Collegiate purchasing collectives are looking to do more.
Colleges aren't the only entities that band together for travel procurement. Some not-for-profits do it, as do some state governments and private-sector . . .