Become a Supplier and Grow With Us 
We work closely with our business partners, whether they supply us with paper and pens, parts and wire, or professional services. And the results of our partnerships - improved quality, innovative ideas, reduced costs - are profitable for all.

Use the links on this page to get information about working with us. You’ll find everything you need to become an Ameren supplier. You will also find training materials, risk compliance information, and billing instructions.

If you are already a supplier, and need more information about purchasing and general procurement, contact:

Supply Chain Process & Performance
Email: ProcessPerformance@Ameren.com
Phone: 314.554.2821

If you are supplier with a payment inquiry, contact:
Accounts Payable
Email: accountspayable@Ameren.com
Phone: 314.554.4468

If you are a diverse supplier and would like more information about Ameren purchasing and general procurement, select this link or call 888.256.1150.
 
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