Clio - Clio provides a full suite of web-based practice management tools targeted specifically at the administrative needs of sole practitioners and small firms.
Freshservice - Freshservice: the one-stop cloud solution for all your IT management needs.
MyCase - Practice More, Manage Less.
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
PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.