Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
RabbitMQ - RabbitMQ is an open source message broker software.
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Ethereum - Ethereum is a decentralized platform for applications that run exactly as programmed without any chance of fraud, censorship or third-party interference.
Plivo - Plivo simplifies your customer engagement.
Hyperledger - Hyperledger is a multi-project open source collaborative effort hosted by The Linux Foundation, created to advance cross-industry blockchain technologies.