Below lists the active agencies on TVInvoices.com.  
If the agency is on this list, you can activate them for EI in your traffic system.

Many traffic systems require a unique identification number to activate an agency.  
If your system has this requirement, we would like to suggest to following:

1.  Select the “TV ID” from the active agency list.  (There is the option of an alphanumeric or numeric id for you to choose.)  
2.  Assign a unique agency id within your traffic system.
3.  Use a unique agency id from a different EI service vendor (also referenced as an “IDB” or “EMT” or Marketron number.) 

If you have any questions, please contact the support team and an available team member will answer your questions.  
The entire support team can be reached at help@TVInvoices.com.