Twilio

Twilio is a cloud communications company that gives software developers programmable APIs to add messaging, voice, email, video, and authentication to their applications. Founded in 2008 and headquartered in San Francisco, it has grown from a pay-as-you-go SMS and voice API into a broad customer-engagement platform that pairs those channels with Segment's customer data platform and a growing set of AI-driven tools. Twilio is publicly traded on the NYSE under the ticker TWLO and serves developers and enterprises across nearly every industry.