Service Fusion - Service Fusion is an all-in-one field service management software that offers a wide range of useful features such as time tracking, reporting, inventory management, invoicing and payments, etc.
Freshservice - Freshservice: the one-stop cloud solution for all your IT management needs.
TimeHero - TimeHero is a productivity tool that tells team exactly when to work on tasks and gives predictive data and intelligent suggestions.
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
Case Camp - CaseCamp is a free web-based online project management software.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.