Officely - The only desk booking tool that lives in Slack
Bizness Apps - Create your own app or become a reseller and build apps for others
OfficeMixer - Automated office bookings
GoodBarber - GoodBarber is a mobile app creation platform.
RobinPowered - Robin coordinates meeting spaces, people, and things in your office. Complete with analytics and insights that uncover usage and help optimize space.
BuildFire - BuildFire is the easiest way for small businesses to build a mobile app in a matter of minutes for iOS and Android.