Nylas, the communications API platform for modern email, scheduling, and work automation tools for developers and enterprises, today announced it has raised $120 million in Series C funding. The investment brings Nylas' total funding to $175 million, further accelerating the growth of both Nylas and the API economy.

The round was led by Tiger Global Management with participation from existing investors Citi Ventures, Slack Fund, 8VC, Round13 Capital, Scale Asia Ventures, and more, as well as new investors including Owl Rock Capital, a division of Blue Owl, Blue Cloud Ventures, and individual contributions from Patrick Collison, Co-Founder and CEO of Stripe, and his brother John Collison, President and Co-Founder of Stripe, Sebastian Siemiatkowski, CEO of Klarna, and Tony Fadell, Founder of Nest and Principal at Future Shape. John Curtius, Partner at Tiger Global, will join the Nylas Board of Directors.

Developers around the world use Nylas to quickly and securely build email, scheduling, and work automation features into their applications. With Nylas, developers at innovative companies like Upwork, Wix, Freshworks, Lever, Dialpad, Ceridian, and Move.com get unprecedented access to rich communications data from their end-users, pre-built workflows that automate everyday tasks, embeddable UI/UX components for fast front-end development, and comprehensive security features - all delivered via a suite of powerful APIs that make integration easy.