Higher Logic - Private, secure online communities that stimulate conversation and ignite engagement.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Tribe.so - Tribe is a white-label platform, empowering the new generation of online communities.
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.
Plivo - Plivo simplifies your customer engagement.