Supplier Registration

Get the process started today! Register below to be considered as an approved supplier to Day & Zimmermann. Note that a W-9 form will need to be uploaded as part of this registration process. Information provided by your company will be treated in a confidential manner and will be subject to reasonable and prudent safeguards against improper disclosure.

You will be automatically notified upon successful completion of the registration process and receive a login ID and password which will allow you to access your supplier profile and make changes to ensure the accuracy of the information stored in our database. Registering as a supplier does not constitute approval of your company as a Day & Zimmermann supplier.


 Supplier Registration  Supplier Login 

Supplier Diversity

Day & Zimmermann is always looking to increase the number of small, minority, and women-owned business enterprises that provide us with products and services that meet our high standards of quality, competitive pricing and service. We encourage all such suppliers to provide their qualifications and certification documentation via the Supplier Registration process.

Learn more about our supplier diversity.

We Value Our Suppliers

Relationships with qualified suppliers who support the operation of our business are critical to Day & Zimmermann's ability to successfully deliver on its promises. We are actively committed to a selection process that provides all suppliers with an equal opportunity to submit for consideration information about their organizations, products and services.

Doing Business with Day & Zimmermann: The Defense Industry Initiative Supplier Code of Conduct

We expect all subcontractors and supplier employees to act with honesty and integrity. As a long-time member of the Defense Industry Initiative on Business Ethics and Conduct (DII), Day & Zimmermann joins other defense companies who are committed to conducting business affairs at the highest ethical level and in full compliance with the law. To ensure the promotion of inter-organizational ethics (e.g. each part of the supply chain affects others), while limiting the number of codes flowed to common suppliers in the defense industry, we have officially replaced our former “Ethics Standards and Guidelines for Supplier Personnel” with the DII Model Supplier Code of Conduct, which includes an additional D&Z-specific one-page addendum. This document helps you understand your responsibility as a supplier to Day & Zimmermann and guides you if you are faced with an ethical issue.