Zendesk to Report Fourth Quarter and Full Fiscal Year 2014 Financial Results on February 11, 2015

January 13, 2015

SAN FRANCISCO, CA — January 14, 2015 – Zendesk, Inc. (NYSE: ZEN) today announced that it will release financial results for the fourth fiscal quarter and full fiscal year ended December 31, 2014 following the close of the U.S. markets on Wednesday, February 11, 2015.

Zendesk will host a conference call to discuss financial results at 2:00 p.m. Pacific Time, 5:00 p.m. Eastern Time, on Wednesday, February 11, 2015.  A live webcast of the conference call will be available at https://investor.zendesk.com. The conference call can also be accessed by dialing 877-201-0168, or +1 647-788-4901 (outside the U.S. and Canada). The conference ID is 65823767.  A replay of the call via webcast will be available at https://investor.zendesk.com or by dialing 855-859-2056 or +1 404-537-3406 (outside the U.S. and Canada) and entering passcode 65823767. The dial-in replay will be available until the end of day February 13, 2015. The webcast replay will be available for 12 months.

About Zendesk:

Zendesk provides a customer service platform designed to bring organizations and their customers closer together. With more than 48,000 customer accounts, Zendesk is used by organizations in 150 countries and territories to provide support in more than 40 languages. Founded in 2007 and headquartered in San Francisco, Zendesk has operations in the United States, Europe, Asia, Australia and South America.Learn more at www.zendesk.com.