Teem - Cloud-based meeting room booking system
NextPlane - NextPlane offers cloud-based, scalable unified communications federation service for the enterprise.
BOOKMEETINGROOM.COM - Book Meeting Room - Conference & Meeting Rooms Management
Voxer - Turn your phone into a Walkie Talkie. Don't waste time on phone calls and voicemails.
Skedda - Offices, co-working spaces, universities, sports venues, studios & churches are just some of the places that manage the use of their desks, rooms, courts, studios, halls and all other 'spaces' with Skedda
Sameroom - Chat interoperability-as-a-service