Whatspot - Simple booking system for spaces in companies. Use app to reservations of meeting rooms, car fleet.
Arrangr - A simple, fast way to arrange a meeting
Task Muncher - Task Muncher is a cross-platform and web-based application that is designed to organize and keep the track of everything and focus on munching the weekly tasks.
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.
Taskable - Using multiple work apps leads to tons of context switching, breaking flow and killing productivity.
Navigator - The Teamwork assistant — run great meetings without busywork