Zendesk - Zendesk is a beautiful, lightweight help-desk solution.

EasyChannel - Simplify your multichannel eCommerce with EasyChannel.

Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community

eDesk - Business Tools, Support, Sales, and Marketing, and Help Desk

HelpScout - Help Scout is a simple, straightforward way to provide excellent support

Subivi - eCmmerce Customer Support - Made Easy Increase sales by making sure your customers are always happy