Collaboration

Bloomfire Portal   - Knowledge Management and Social Collaboration. (FT)

Convo - Enterprise social network for business. (F)

Exo Platform -Open Source social collaboration platform. (F)

Idea Scale - Comprehensive open innovation solution (F)

iDoneThis - Email-based productivity log that motivates and tracks productivity with a daily email reminder (F)

Kolab - Secure communication and collaboration platform

Lumo Flow - Private social network with group work tools for collaboration. (FT)

Monday - Enabling companies to keep on moving with speed (FT)

Pass the idea - Group ideation platform

Rizzoma -Free open source collaboration tool.  Similar to Google Wave (F)

Slack - A platform for team communication: everything in one place, instantly searchable.

Sococo - Virtual office (F) (FT)

TheBrain.com - Collaboration, file and document management. (FT) 

Wrike - Real-time workspace for teams to collaborate

Yammer - Private social network for your company. (F)

Zimbra - Real-time backup and collaboration tool.  MS Exchange alternative (FT)

Zulip - Free open-source alternative to Slack (F)