Thankbot - Drive more business with handwritten notes
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Thankster - Automagically send hand written cards
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Socialkeeper - Cultivate your friendships
Plivo - Plivo simplifies your customer engagement.