• Technical Conference:  04 – 09 May 2025
  • The CLEO Hub: 06 – 08 May 2025

Contact Us

General Attendee Information
Technical Conference
CLEOProgram@wearemci.com

Registration Customer Service
Email: cleo@mcievents.com
Domestic (toll-free): +1 866.207.3619
International: +1 972.349.5909
Call Center Hours: Monday - Friday, 07:00 - 18:00 CT (UTC-06:00)

Technical Publications and Submissions

CLEOProgram@wearemci.com
 

Exhibit and Sponsorship Sales
+1 202.416.1428
sales@cleoconference.org

Exhibit Logistics and Operations
+1 202.416.1911
exhibits@cleoconference.org

Exhibitor Accounts (only for exhibit space billing and exhibitor primary contact changes)
+1 202.416.1942
exhibitoraccounts@cleoconference.org