Zendesk Files Registration Statement with SEC for Proposed Initial Public Offering

April 10, 2014

SAN FRANCISCO,CA – April 10, 2014 – Zendesk, Inc. today announced that it has filed a registration statement with the Securities and Exchange Commission for a proposed initial public offering of its common stock.  The number of shares to be sold and the price range for the proposed offering have not yet been determined.  Zendesk plans to list its common stock on the New York Stock Exchange under the ticker symbol “ZEN.”

Goldman, Sachs & Co., Morgan Stanley & Co. LLC, and Credit Suisse Securities (USA) LLC are acting as joint book-running managers for the offering. Pacific Crest Securities LLC and Canaccord Genuity Inc. are acting as co-managers.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

The offering will be made only by means of a prospectus. Copies of the preliminary prospectus related to the offering may be obtained, when available, from Goldman, Sachs & Co., Attention: Prospectus Department, 200 West Street, New York, NY 10282, by telephone at (866) 471-2526, or by email at prospectus-ny@ny.email.gs.com; from Morgan Stanley & Co. LLC, Attention: Prospectus Department, 180 Varick Street, 2nd Floor, New York, NY 10014, by telephone at (866) 718-1649, or by email at  prospectus@morganstanley.com; or from Credit Suisse Securities (USA) LLC, Attention: Prospectus Department, One Madison Avenue, New York, NY 10010, by telephone at (800) 221-1037, or by email at newyork.prospectus@credit-suisse.com.

About Zendesk

Zendesk provides a customer service platform designed to bring organizations and their customers closer together. With more than 40,000 customer accounts, Zendesk is used by organizations in 140 countries 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.