Splitwise - Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!
TravelPerk - Corporate Travel Management
EquiTable - Split the bill fairly
TripActions - TripActions is the corporate travel management company that helps you control costs and keep employees happy.
Splittable - Shared living made simple
Rydoo - Rydoo is a Travel and Expense management system.