Zendesk to Present at Upcoming Investor Conferences

August 1, 2016

SAN FRANCISCO, CA – August 1, 2016 – Zendesk, Inc. (NYSE: ZEN) today announced its participation in two upcoming conferences.

• Elena Gomez, chief financial officer, and Marc Cabi, vice president of strategy and head of investor relations, will present at the Pacific Crest Global Technology Leadership Forum at the Sonnenalp Hotel in Vail, Colorado on Monday, August 8, 2016. Zendesk’s presentation is scheduled for 3:30 p.m., Mountain Time.

• Adrian McDermott, senior vice president of product development, and Marc Cabi, vice president of strategy and head of investor relations, will present at the Canaccord Genuity Growth Conference at the Intercontinental Boston Hotel in Boston, Massachusetts on Wednesday, August 10, 2016. Zendesk’s presentation is scheduled for 1:30 p.m., Eastern Time.

A live webcast of each presentation and an archived version will be available for six months. Both will be accessible by visiting Zendesk’s investor website at
www.investor.zendesk.com

About Zendesk:

Zendesk provides a customer service platform designed to bring organizations and their customers closer together. With more than 75,000 paid customer accounts, Zendesk’s products are used by organizations in over 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.