get.evercontact.comSoftware by Kwaga
Streak - Manage customers inside Gmail
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
NetHunt CRM - Turn Gmail into a smart CRM
Pobuca Connect - Connect with your contacts.
Instantly - Build your own infinitely scalable cold email outreach system with Instantly.
CRM-gx - Contact Management