Followup.cc - FollowUp for email is a lightweight productivity suite that keeps your conversations and tasks from slipping through the cracks. Set perfectly timed reminders that arrive at the top of your inbox, right when you need them.
Yesware - Sell smarter with email tracking and more
Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.
Mixmax - At Mixmax, our mission is to change how the world communicates. We’re an email productivity platform that helps sales, customer success, and recruiting teams do their jobs better.
Boomerang for Outlook - Boomerang for Outlook offers email productivity tools to track, schedule and send mails at the right time.
SalesLoft - The simpliest way to build the most accurate and targeted lists of leads on the internet