Shareholder Letter

Mikkel $123.4M Svane Q4 2017 Revenue CEO 39% Q4 Y/Y Revenue Growth 119,000 Paid Customer Accounts Elena Gomez INTRODUCTION CFO In 2017, we made great progress towards our goal of being a $1 billion revenue company in 2020. Through disciplined execution, we expanded our product line, increased our market penetration, and rapidly grew our business. We also delivered on our important strategic goals for the year: moving upmarket by landing larger deals with mid-market and enterprise companies, and becoming a multiproduct company with new revenue opportunities. With this performance, we delivered strong revenue growth, our highest-ever annual net cash from operating activities, and—for the first time in Zendesk’s history—positive full-year free cash flow. Marc As we move into 2018, we are focused on further maturing our omnichannel Cabi offering and accelerating our push upmarket. We enter 2018 with a strong team enhanced by two new board members and a new head of worldwide Strategy & IR sales, and a very high level of optimism about the sales opportunities our teams are pursuing to begin the year. Based on our results and momentum, we have gained additional confidence in our plan to reach our $1 billion 2020 revenue goal. Zendesk Shareholder Letter Q4 2017 - 2