Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Odoo - An all-integrated business app suite to unleash your growth potential.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Infor ERP - An ERP suite for the manufacturing & distribution industries
Hubstaff - Simple yet powerful employee work tracker with screenshots, timesheets, billing, in-depth reports, and more. Understand productivity issues and act on them.
Adempiere - ADempiere is a commons-based peer-production of Open Source ERP Applications.