Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Grove - Personalized financial planning for everyone
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Inbox Creature - A super cute virtual pet, delivered right to your inbox.
Plivo - Plivo simplifies your customer engagement.
Betterment - We manage your investments so you don't have to.