HTTrack - HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
WebCopy - Cyotek WebCopy is a free tool for copying full or partial websites locally onto your harddisk for offline viewing.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
SiteSucker - SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs