Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
PagerDuty - Cloud based monitoring service
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
OpsGenie - Alerting and On-Call Management for Dev&Ops Teams
Plivo - Plivo simplifies your customer engagement.
Squadcast - Automate incident response, reduce downtime and enhance your tech teams’ delivery with a unified platform.