IDOT's Message
Mike Copp, Prequalification Engineer

Mike Copp, Prequalification Engineer

Firms' Message
Imtiaz Rehman, Engineering Services Group

Imtiaz Rehman, Engineering Services Group


Contact Us

Business Opportunities Coordinator
(217) 558-3964
DOT.BusinessOpp@illinois.gov

Illinois Department of Transportation
2300 S. Dirksen Parkway
Springfield, IL 62764

Subcontractor Registration

Subcontractors must register annually with IDOT in order to be approved for and participate on IDOT projects.

Prequalified contractors are automatically included on the list of registered firms and are NOT required to register.

Additionally, material suppliers, trucking companies, and companies that provide professional services (i.e. consultants) are NOT included in the definition of subcontractor and are not required to register.

Who is eligible to register?

Any firm or contractor seeking to provide highway or construction services to IDOT can register.

What are the benefits?

Once registered as a subcontractor, you can be approved to perform subcontracting work for a prime contractor on IDOT projects.

For more information on Subcontractor Registration click here

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