Active Collab is a web-based project management tool.

Basecamp is a project management web app.

eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform.

Glip is fully searchable, real-time group chat; video chat, task management, file sharing app.

Holiline Reminder is a free software calendar program for Windows.

Jostle is a people engagement platform mainly focused on employee engagement.

Asana is a web and mobile application designed to help teams track their work.

Bitrix24 is a free (for small businesses) social enterprise platform.

fluxday is a user-friendly, free & opensource task & productivity management tool for growing startups.

Hive.com is a productivity platform with powerful project management features.

HumHub is a free social network software and framework built to give you the tools to make teamwork easy and successful.

Paymo is an online project management app that helps deliver projects on budget and on time, by eliminating bottlenecks through accurate tracking and reportin…