Our mission is to build the best
calendar tools in the world.

AddEvent was founded in 2015 when a talented developer realized the importance of calendars in peoples’ everyday lives. He saw that calendars could become a new channel through which companies could engage with and market to their customers. He built and released the world’s first add-to-calendar button, new user growth exploded, and he never looked back.

Today, AddEvent is a rapidly growing technology company located in the heart of Silicon Valley, California. It currently offers a suite of powerful calendar management and marketing tools that are used by many of the largest companies in the world.

Our team is committed to providing you with an unparalleled add to calendar experience. We’re proud to be the leading “Add to Calendar” solution on the internet.

We're making sure your events
reach your users' calendars.


unique newsletter events


calendar syncs /day


calendar event-adds /month


live scripts requests /day

We handle an average of over 30
calendar transactions every second.

Some of our incredible customers

If you need us...

We are located in San Mateo, California. A home to many data-driven
startups, conveniently located between San Francisco and Palo Alto.
If you are visiting the Bay Area, feel free to stop by.

Office address
AddEvent, Inc
400 Concar Dr
San Mateo, California, 94402