Powering Billions of Connections Each Week

The Nylas API helps developers build software that connects the world.

Our Mission

Our mission is to help developers leverage communications data and build features that increase customer engagement, productivity, and retention.

Nylas was founded in 2013 by a couple of MIT grads who were passionate about making complex systems simpler. Our co-founder and CTO Christine Spang saw that email use was growing at a steady rate, yet there wasn’t a simple way to unify this data-rich tool in a way that developers could easily integrate with this data. She and a small team (at the time) set out to fix this.

Today, our communication APIs are used globally across more than 22 countries. We enable developers to build innovative apps that integrate with 100% of email, calendar, and contacts providers in as little as four lines of code.

We’re proud to say that we’re the #1 email API, and that we’ve built a deeply human company along the way (more on that below).

Our Mission
Our Mission
Nylas Innovation Creativity

Innovate and Create With the Nylas APIs

The Nylas API sends billions of emails per week and powers communication features in the top SaaS applications around the world.

We empower developers building software to innovate and create innovative products that their customers love.

Empowering Humans to do More Human-Centric Things

Nylas enables every person who uses software to spend more time on creative human endeavors, and less time on manual data entry. Nylas saves developers over 1,524,240 hours per year by integrating just once with our modern, RESTful API.

Our Mission
Nylas Innovation Creativity

Diversity & Inclusion at Nylas

We’re committed to building a diverse company that reflects the type of world we believe should exist.

Nylas is a founding member of Out in Tech’s Qorporate council, the world’s largest community of LBTQ+ tech professionals that seeks greater diversity, inclusion, and belonging in the technology sector. We’re supporters of companies like Lesbians Who Tech, Dev Color, and Women Who Code. We host regular workplace bias workshops, and we have an active voice in the tech community about the importance of diversity in the workplace.

We know that different perspectives are our strength. Together, we’re building a more connected world.

Read More on D&I at Nylas

Our Locations

Nylas has been rapidly expanding, with bustling offices in San Francisco, NYC, and Denver, plus full-time remote team members sprinkled across the world.


944 Market St, 8th Floor
San Francisco, CA 94102

New York

26 Broadway, 3rd Floor
New York, NY 10004


1550 Wewatta St, Suite 200
Denver, CO 80202

Nylas Awards

Our Investors

svg angel
fuel capital


We’re hiring! Learn more about why Nylanauts love working at Nylas and help us build the future of communications APIs!

Explore Careers