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
Phone: 314.554.2821

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

Ameren Missouri Smart Energy Plan - Contractor Request for Information
Please complete and submit this form to pre-qualify for bidding on work packages in the following areas:

  • Directional Boring Services
  • Hydro Excavation Services
  • Underground Cabling Installation Services
  • Underground Duct Bank Installation Services
  • Overhead Line Electrical Installation Services


Lien Waiver Requirements

Ameren Lien Waiver Policy

Contractor's Affidavit and Partial Lien Waiver

Subcontractor's Partial Lien Waiver

Contractor's Affidavit and Final Lien Waiver

Subcontractor's Final Lien Waiver

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