Teamup Calendar - Cloud-based calendaring using capability URL, application developed in Zurich, Switzerland.
Meetio Room - Meeting Room Booking System
Teamweek - A project management software to help you get the best overview. Plan fast, change plans faster!
Resource Central - Meeting room & resource scheduling software for Outlook
Google Calendar - Spend less time managing your day & more time enjoying it
Smartway2 - Book meeting rooms, desks & more via mobile/Outlook/desktop