Glip
Freemium
Glip is fully searchable, real-time group chat; video chat, task management, file sharing app.
Bitrix24
Freemium
Bitrix24 is a free (for small businesses) social enterprise platform.
TribeScale
Free
TribeScale is an All-in-One platform to coordinate your team around what really matters - communication, goals, decisions, tasks and results.
Azendoo
Freemium
Azendoo is a project management & team collaboration platform.
eXo Platform
Commercial
eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform.
Whaller
Freemium
Whaller allows teams and organizations to create their own internal social networks, meaning no adverts and no data exploitation.
Huddle
Commercial
Huddle is a team collaboration & project management software for enterprise and government.
Compare Yammer with alternatives
Compare eXo Platform and Yammer and decide which is most suitable for you.