Veloxy - A sales enablement app. Your calendar on steroids!
ContactRescue - Magically get your address book up-to-date and accurate
Vipor CRM - Relationship management. Redesigned.
Cardhop - The Mac contacts app you'll want to use.
Support Hero - Educate your customers through self-help support
Clearbit Connect - Clearbit Connect is a free extension that surfaces actionable information on the people who email you.