Zendesk Announces Pricing of Follow-On Offering

March 18, 2015

SAN FRANCISCO, CA –  March 18, 2015 – Zendesk, Inc. (NYSE: ZEN) today announced the pricing of a follow-on offering of 8,530,000 shares of its common stock at a price to the public of $22.75 per share.  Zendesk is offering 7,500,000 shares and selling stockholders are offering 1,030,000 shares. In addition, Zendesk has granted the underwriters a 30-day option to purchase up to an additional 1,279,500 shares of common stock from Zendesk.  Zendesk will not receive any proceeds from the sale of shares by the selling stockholders.

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

A registration statement relating to these securities has been filed with, and declared effective by, the Securities and Exchange Commission. 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 final prospectus relating 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; from BofA Merrill Lynch, 222 Broadway, New York, NY 10038, Attention: Prospectus Department, or by e-mail at dg.prospectus_requests@baml.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 52,000 paid customer accounts for its customer service platform and live chat software, 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