Clearbit - Clearbit provides Business Intelligence APIs
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
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.
LinkedIn Sales Navigator - Sales tool for LinkedIn users.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.