TravelPerk - Corporate Travel Management
Catch - Catch is the easiest way to use ShowRSS on OS X. It'll take care of everything.
Concur - Automated travel and expense management - your employees, travel managers and finance, too.
Perkbox - Hundreds of perks for employees
Egencia - Egencia is a corporate travel management system.
Perk Generator by Cherry - The 100+ employee benefits offered today. On shuffle mode.