Twilio

Twilio is the leading cloud communications platform, providing developers with powerful APIs to programmatically embed voice, SMS, video, and email into any application.

Twilio offers a robust Customer Engagement Platform (CEP) built on flexible, developer-first APIs: this is Communication Platform as a Service (CPaaS). Over 10 million developers and 335,000 global enterprises (Uber, Airbnb) leverage this platform to build personalized customer experiences. Key products include Programmable Messaging (for SMS, MMS, WhatsApp), Programmable Voice, and Twilio SendGrid (for email). Use cases are specific and critical: implementing two-factor authentication (2FA) via Twilio Verify, deploying a fully customizable cloud contact center with Twilio Flex, or orchestrating omnichannel marketing campaigns. The platform scales globally, delivering messages across 180+ countries with pay-as-you-go pricing: you only pay for the usage you drive.

https://www.twilio.com