Copper

CRM integrated with G Suite
Copper allows you to “manage all your contacts, deals, emails, files, and more in one place.” It’s primary differentation is the integration with G Suite. The benefit of the integration, according to Copper’s website, is that you can “add leads, update deals, look up past interactions, create Google Calendar events, and follow up on tasks—right from your Gmail inbox.” Copper also highlights its features that allow for collaboration with teammates.