Twilio

Twilio is the cloud communications company behind the SendGrid email platform, the Segment customer data platform and the Messaging, Voice and Flex APIs.

Twilio is a San Francisco company, founded in 2008, that sells communications and customer data infrastructure to developers and the marketing teams they work with. Twilio calls the whole a toolbox for digital experiences built from communications, data and AI, and reports availability in more than 180 countries and territories and more than 400,000 active customer accounts. The original products are the programmable Messaging and Voice APIs; Flex is its contact centre and Engage is its marketing orchestration layer. Two acquisitions matter most to a marketing buyer. Twilio SendGrid is the email platform: a transactional Email API and SMTP relay that reports more than 205 billion emails a month, plus Marketing Campaigns for newsletters and drip automation. Twilio Segment is the customer data platform: sources, destinations, warehouse sync, reverse ETL and, on enterprise plans, identity resolution and audiences. Both sendgrid.com and segment.com now redirect into twilio.com, where the pricing pages and docs live. Twilio Flex is the contact centre in that line: a programmable agent desktop built on the Voice, Messaging and TaskRouter APIs, sold with its own pricing page and trial. Twilio publishes self-serve prices for SendGrid and for Segment's Connections tier, extensive developer documentation and a status page. It serves engineering teams building messaging, email and data pipelines into their own products, and the marketing teams that buy the campaign and audience layers on top.