Zendesk trades under the ticker symbol “ZEN” on the NYSE.

Zendesk’s transfer agent is Computershare and they can be reached at 1- 877-373-6374 (U.S.) or +1 781-575-2879 (international).

Zendesk’s independent registered public accounting firm is Ernst & Young LLP.

Zendesk’s fiscal year ends on December 31.

Zendesk’s CUSIP number is 98936J 101