iDempiere - iDempiere Business Suite ERP/CRM/SCM done the community way.

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.

DataNote ERP - DataNote ERP is a complete ERP solution built for multiple industries such as construction, engineering, food and beverages, metal processing, and healthcare, among others.

Abacus - Expenses without the 'expense report'

PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.

Zoho Expense - Automate your expense reporting process and streamline the approval flow.