Supplier Development & Engagement

At Constellation:


Promoting a broad, sustainable supply chain through Supplier Development and Engagement  


Our supplier development and engagement mission is to create and foster a broad, agile, resilient, inclusive, and sustainable supply chain.  We seek suppliers that understand and can support our core strategies and values, grow and innovate with us, and bring continuous value by anticipating our needs and delivering cost-effective solutions.

We are interested in engaging with suppliers of all sizes, including small businesses, with various capabilities, resources, and perspectives who share our commitment to deliver the best services for our customers and communities.

The inclusion of all segments of small businesses grows and strengthens our ecosystem of suppliers resulting in, at a minimum: 

  • Increased competition and optionality in our supply chain
  • Increased innovation
  • Increases our top and bottom-line growth
  • Improves our competitive advantage
  • Supports us with gaining access to new markets
  • Introduces suppliers of scale to our supply chain
  • Helps us create and sustain an agile and resilient supply chain
  • Deepens our economic impact in our communities


Ready to Engage?

We encourage suppliers to increase visibility to our sourcing teams by registering for opportunities to do business with us in our GEP Smart Portal here.

Connect with our team and learn more about how to be considered for opportunities to do business with us here: ConstellationSupplier@constellation.com

Tier 2 Reporting

  • 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 someone is not identified, the Primary Contact will receive all Tier 2 messages for the company.

Online Sourcing application Login for Tier 2 Reporting.

Technical Support – SMART by GEP online sourcing application
support@gep.com
USA: 1-732-307-8731

Accounts Payable Inquiries
​​​​​​​​8:00 am - 5:00 pm EST​
Monday through Friday
invoiceinquiryteam@constellation.com
667-218-7667

Invoice Processing
If not enrolled in Electronic Invoicing, Constellation’s preferred method of invoice submittal is through our Oracle Supplier Portal. Contact SupplierMgmtTeam@constellation.com to get access.

Technical Support - EDI & eInvoicing
electronicinvoiceteam@constellation.com

Supplier Development and Engagement
ConstellationSupplier@constellation.com

General inquiries
​For corporate and media contacts, please see our Contact page 

To contact or report an ethics concern, please see our Ethics, integrity & business conduct page​.