Experlogix CPQ - Proposal management, quoting, and product configurator
Freshservice - Freshservice: the one-stop cloud solution for all your IT management needs.
Oracle CPQ Cloud - CPQ software & Quote-to-Cash app
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
CloudSense - CPQ and order management native to Salesforce
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.