Collaborative Environments

Pidoco

https://pidoco.com/en

Pivotal tracker

http://www.pivotaltracker.com/

Planbox

https://www.planbox.com/

Podio

https://podio.com/

Projectplace

https://www.projectplace.com/

Projectmanager

https://www.projectmanager.com/

Projectwise

http://www.bentley.com/en-US/

Protoshare

http://www.protoshare.com/