lemlist - Send emails that get replies 💌

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.

Lemwarm by Lemlist - Give your email deliverability a huge boost and say goodbye to spam. Warm up any email address with lemwarm automagically.

Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.

Outreach - Outreach Is Your Sales Communication Platform

FollowUpThen - The simplest way to schedule an email reminder