Communifire - Enterprise Social Collaboration Software
Xmind - Xmind is a brainstorming and mind mapping application.
Bonzai Intranet - Bonzai is an intranet platform with flexible pre-built features for SharePoint and Office 365.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
hub - The Hub is a versatile intranet portal and collaboration solution that boosts employee engagement and productivity in a digital workplace.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.