HelpNDoc - What is HelpNDoc ? Easy to use yet powerful help authoring environment which can generate various documentation formats from a single source.
Kissflow - Kissflow is a workflow tool & business process workflow management software to automate your workflow process. Rated #1 cloud workflow software in Google Apps Marketplace.
Dr.Explain - Dr.Explain software is a help file authoring tool.
Nintex - Cloud-based digital workflow management automation platform
MadCap Flare - Documentation for Any Audience, Language or Format
ProcessMaker - ProcessMaker is an easy to use BPM and workflow software solution. It is used to design, automate, and deploy business processes of any kind.