Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Teem - Cloud-based meeting room booking system
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
BOOKMEETINGROOM.COM - Book Meeting Room - Conference & Meeting Rooms Management
Plivo - Plivo simplifies your customer engagement.
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