Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Citrix XenDesktop - Desktop virtualization suite allowing multiple users to access Microsoft Windows desktops that are installed at a centralized location
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Splashtop Business Access - Remote desktop for business professionals and teams.
Crisp Chat - Multi-channel customer support software
TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.