APPIAN SCHEDULES FIRST QUARTER 2021 FINANCIAL RESULTS CONFERENCE CALL AND WILL PRESENT AT UPCOMING INVESTOR CONFERENCES

MCLEAN, Va. - Appian (NASDAQ: APPN) today announced that it will release financial results for the first quarter 2021 after market close on Thursday, May 6, 2021. The company also will host a conference call that day at 5:00 p.m. ET to review its financial results and business outlook.

The live webcast of the conference call can be accessed on the Investor Relations page of the Company's website at http://investors.appian.com. To access the call, please dial (877) 407-0792 in the U.S. or (201) 689-8263 internationally. Following the call, an archived webcast will be available at the same location on the Investor Relations page. A telephone replay will be available for one week at (844) 512-2921 in the U.S. or (412) 317-6671 internationally with recording access code 13717973.

Management will also present at the following investor conferences.

• The William Blair Annual Growth Stock Virtual Conference. The presentation is scheduled for Tuesday, June 1^st at 12:00 p.m. ET.
• Cowen Annual Technology, Media & Telecom Conference. The presentation is scheduled for Wednesday, June 2^nd at 12:20 p.m. ET.

The presentations will be webcast live, and the replays will be available for a limited time under the 'News & Events' section on the Investor Relations website (http://investors.appian.com).

Investor Contact
Mark Lynch
703-442-8844
[email protected]