Supplier Frequently Asked Questions

Once you have registered and your information is verified, your profile will be available to all of our procurement professionals worldwide. Due to the volume of inquires we receive you will NOT be contacted until a purchasing professional matches one of our current needs with your offerings. 

US individuals and organizations complete the online registration through PaymentWorks. Organizations and individuals outside the US submit a completed Supplier Registration Form and current IRS form W-8BEN or W-8BEN-E to [email protected] prior to doing business with GW. Please visit the New Supplier Registration page for more information.

We ask that you ensure your data is correct and up-to-date. As this is a global database, it is important that your vendor profile is accurate so that projects and/or divisions within GW that may not be familiar with your company are presented with the best information.

The WCF determines whether an individual should be paid as an employee or as an independent contractor based on IRS guidelines. The department engaging the individual’s services is responsible for completing the form and submitting to the Tax Department for review prior to the individual being engaged and services performed. When approved, the form accompanies all other vendor registration documents. When not approved, the department should work with their Human Resource Representative to pay as an employee.

Existing suppliers should manage their organization’s banking and address information through PaymentWorks. For additional assistance, call the iSupplyGW hotline at (571)553-0300 or email [email protected].

Due to the large volume of inquiries we receive, we do not provide direct phone numbers or email addresses of our purchasing organization. Instead, we use the Supplier Database as a means of routing information to one or more of our purchasing managers by product category. If you have a product or service you would like to introduce to GW, please register with us in the prospective Supplier Database and include any relevant brochures or attachments. When your registration is complete, your company information will be made available to all procurement professionals within GW.

Payments can be viewed through your PaymentWorks login.

Yes. As part of your registration you can add multiple email addresses to send remittance advice. 

All prospective suppliers use the same process to register with GW. The registration form captures diversity status and the information is made available to our Supplier Diversity team.

No, however you may not be eligible to claim various small business subcategories without having proper certification.

In order to submit your information, you must fill out all the required questions.

No, all information is secure and is only available to the GW Buyers.

To bring your account to an active status you will need to register through PaymentWorks with updated information.

If you still have questions after reading the FAQ list, please contact us at [email protected]. Include your name, company name, and phone number along with your question.

Yes, reminder emails are sent out on days 1, 3, 7, 14, 21, 28 and 35.  

Yes, as long as they have not yet clicked the link to start the registration.

As part of the registration process vendors are encouraged to add multiple individuals with access.  However, if all connected people have left, the vendor contacts PaymentWorks directly and they use a verification process to provide a login to the new person.

All current vendors were loaded, however they also need to be invited to register through PaymentWorks to be linked to the verifications and ability to see their invoices and payments. This does not affect using them and processing invoices. Please send invites out to vendors you have relationships with. SM will also be doing reach outs to have vendors in the new system and validated.