SendHub - Get a business phone system on your smartphone and computer. We provide professional, affordable sms, text, and voice solutions in an easy to use system. 14-day free trial.

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

Mobiniti - Mobiniti offers a mobile marketing platform for clients to invite customers to engage with their brand through SMS via their mobile phone.

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

CallHub - Predictive Call Center, Voice and Text Broadcasting app

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