TargetProcess - Agile Project Management Web Application
Olark - Real-time chat and monitoring of your website visitors through Google Talk and Jabber.
Plan.io - Planio makes web based project management and team collaboration more efficient and fun. It is the perfect platform for your projects, team members and clients.
LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.
Interakt.co - Convert customer engagement into revenue.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.