Resources and Information
List of Registered Subcontractors

To participate on any CDB project as a subcontractor, supplier or in any capacity you must have a CDB REGISTRATION #.

If you are currently or have ever been prequalified with CDB your firm has been assigned a registration number, therefore you do not need to register with CDB.

If you are a subcontractor, material supplier, or a consultant (who is not required to be prequalified), then you must register.

Note: Prequalified firms who will perform at times as a subcontractor do not need to register.


To inquire about an existing registration # send an email to:
 
    CDB.SubContractReg@illinois.gov

To apply for a new # use the attached link which will take you to registration form.