Contact & Support

Jefferson Building

CNX is located just north of Chicago’s Loop.
Map ]

CNX Corporation
217 N Jefferson St, Suite 450

Chicago, IL 60661-1103

(312) 477-7450 (phone)


Visit the CNX forum site at to search or post questions to the CNX Development Team.

By Phone

Current Valence and ATOMIC licensees can call our support line at (312) 477-7450 (option 1) 24 hours a day. If you get voicemail, please leave a message with your callback information. The CNX phone system will send a page to an on-call support specialist. You will normally get a callback within 30 minutes.

By Email

Current Valence and ATOMIC licensees can e-mail support questions to Your e-mail will be returned within 24 hours.