Labs64 NetLicensing - Monetize your digital products and services
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.
Open iT LicenseAnalyzer - Open iT LicenseAnalyzer is a software usage metering and optimization tool that provides an enterprise-wide overview of installed software programs managed by most software license managers.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
LicenseSpring - Reliable and easy to use License-As-A-Service (LaaS) for for any software application
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.