clockodo - Clockodo is a time tracking software for small and medium-sized companies.
TopTracker - Beautiful, free time tracking
Sawayo.de - The business owner tool which saves hundreds of hours spend on non-value-adding tasks like employee time tracking, compliance research and workflow implementation (available in German).
Cattr - Cattr is a free open-source self-hosted time tracker with desktop clients for windows, mac, linux.
TimeTrackApp - TimeTrack Enterprise is ideal for collaboration in teams and companies. At the same time the freelancer version was designed for individuals who want keep track of their projects.
timeBuzzer - timeBuzzer enables freelancers and project-driven teams to track their time at the touch of a button, understand where their time goes and create reports with just a few clicks.