Contact Us


Membership and Dues inquiries: 202-470-2784 or text 202-849-9056

Certification: 202-524-8464

Conference or Clinic Inquiries: 202-470-2778

Sponsorship: 202-470-2783

Media Inquiries: 202-822-9491


1325 G St, NW, Suite 420  Washington, DC 20005

Need directions? Click here for directions using Google Maps


Send purchase orders and payments to:  

CoSN (Consortium for School Networking)
Lockbox 75110
Baltimore, MD 21275-5110 

Purchase orders may also be sent via email.

CoSN w-9