Twilio is a cloud communications platform that turns telephone networks, SMS, email, and messaging apps into a few lines of code. Through programmable APIs for voice, messaging, email, and identity verification, plus a customer data platform built on its Segment acquisition, Twilio lets developers and enterprises embed communication and customer engagement directly into their software. More than 400,000 active customer accounts, including roughly 90% of the Fortune 500, build on it.
Nylas is a San Francisco-based API platform that gives developers a single, secure way to plug email, calendar, and contacts into their apps - replacing months of provider-by-provider integration work with a few lines of code.
Christine Spang is the co-founder of Nylas, the email, calendar, and contacts API platform that powers scheduling and communication features for thousands of developers and enterprises. A Debian contributor since age 15, MIT computer science alumna, and former Linux kernel engineer at Ksplice/Oracle, she built Nylas from a frustrated attempt to build a better email client into a company that raised $175M and became essential developer infrastructure. She served as Founder & CEO of Nylas through its Series C growth phase before transitioning to the Board of Directors in 2025.