Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
KOHO - KOHO is a place where you can access your money in real-time and get instant cashback.
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Upromise - Upromise is the cashback coupon and rebate site.
Plivo - Plivo simplifies your customer engagement.
Stocard - All loyalty cards on your smartphone!