OnBase - OnBase is an enterprise content management and process management software suite.
HelpNDoc - What is HelpNDoc ? Easy to use yet powerful help authoring environment which can generate various documentation formats from a single source.
Laserfiche - Laserfiche offers powerful document management software solutions that are easy to implement and easy to use.
Dr.Explain - Dr.Explain software is a help file authoring tool.
IBM FileNet - Enterprise Content Management platform for large businesses
MadCap Flare - Documentation for Any Audience, Language or Format