Zendesk to Hold Annual Analyst & Investor Day on May 17, 2018

SAN FRANCISCO — May 10, 2018 — Zendesk, Inc. (NYSE: ZEN) today announced that it will hold its annual Analyst & Investor Day on May 17, 2018 at Center415 in New York, New York. Executive presentations will be available via live webcast beginning at 1:00 p.m. Eastern Time, and an archive version will be available for six months. Both will be accessible by visiting Zendesk’s investor website atinvestor.zendesk.com.

About Zendesk:

The best customer experiences are built with Zendesk. Zendesk’s powerful and flexible customer service and engagement platform scales to meet the needs of any business, from startups and small businesses to growth companies and enterprises. Zendesk serves businesses across a multitude of industries, with more than 125,000 paid customer accounts offering service and support in more than 30 languages. Headquartered in San Francisco, Zendesk operates worldwide with 15 offices in North America, Europe, Asia, Australia, and South America. Learn more atwww.ying8.net.