XaitCPQ - XaitCPQ is an intelligent Sales Automation Software that gives the sales team productivity at their fingertips.

Postscript - Like Mailchimp for SMS

Conga CPQ - Conga CPQ is a cloud-based multi-channel sales management platform that is designed to help companies of all sizes turn their focus toward selling.

Tatango - Tatango is a mobile messaging platform for agencies.

CloudSense - CPQ and order management native to Salesforce

Flowroute - Flowroute provides direct access to telephony resources - such as calling, messaging (SMS & MMS), call routing, SIP Trunking and Communication APIs.