RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Salesflare - Simply powerful CRM. Automates your data to build better relationships and make more sales.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
17hats - The all-in-one business system for entrepreneurs.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
LinkPoint Connect - LinkPoint Connect: Desktop Edition for Salesforce links the work you do in your email to the records you need to update in the CRM.