Supplier Diversity

Constellation expects suppliers to meet certain diversity goals in their own business. We ask current suppliers who are required to report Tier 2 spend to report monthly; please log-in below.

If you’re a new supplier and don’t have an existing company profile in the Constellation online sourcing application, please register here.

If your company has an existing profile in Constellation’s online sourcing application you will need to identify the Tier 2 Reporter for your company, if one is not identified the Primary Contact will receive all Tier 2 messages for the company.

Online Sourcing application Login for Tier 2 Reporting.


Supplier Diversity Initiatives Enrollment

If your business would like to be considered in future solicitations, or if you have questions or need information about Constellation’s supplier diversity initiatives and program criteria, please email the Constellation Diverse Business Empowerment Group:

Supplier Diversity Certification

To assist you, we have listed a small portion of some of the certifying agencies available to you.  

  • Department of Small Local Business Development in D.C. Certified Business Enterprise (CBE)
  • Maryland Department of Transportation (MDOT) Certification – MBE/SBE/ DBE
  • Baltimore City Minority and Women’s Business Opportunity Office MBE/WBE
  • Capital Region Minority Supplier Development Council (CRMSDC)

Technical Support – SMART by GEP Online Sourcing Application
USA: (732) 307-8731


Accounts Payable Inquiries

​​​​8 am - 5 pm ET​, Monday through Friday
(312) 429-9303


Invoice Processing

​​If not enrolled in Electronic Invoicing (eInvoicing), Constellation’s preferred method of invoice submittal is by email​.


Technical Support - EDI & eInvoicing


Diverse Business Empowerment Group


General Inquiries

For category manager contact information, please see our Category Manager Contact Information.

For corporate and media contacts, please visit our Contact Us​ page.

To report an ethics concern, please visit the Constellation Ethics Help Line​.