Confluence - Confluence is content collaboration software that changes how modern teams work
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
Slack - A messaging app for teams who see through the Earth!
Invision - Prototyping and collaboration for design teams
Yammer - Yammer is a leading enterprise social network used by more than 200,000 companies worldwide, including 85% of the Fortune 500, to get work done smarter and faster. Sign Up Today.
Zeplin - Collaboration app for UI designers & frontend developers