Expensify - Import expenses directly from a credit card to create free expense reports quickly. Approve reports online and reimburse directly to a checking account with one click.
TravelPerk - Corporate Travel Management
Concur - Automated travel and expense management - your employees, travel managers and finance, too.
Abacus - Expenses without the 'expense report'
Egencia - Egencia is a corporate travel management system.
Xero - Xero is online accounting for your small business.