Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
Paved - Email marketing and sponsored content, simplified. Close more sponsorship deals or reach targeted, engaged audiences. Discover the Paved difference.
MailClark - The Slack bot for external communications
LetterWell - Buy and sell ad space in email newsletters
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates
SponsorGap - Finding the right sponsor just got easier