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iSupplier is a secure portal where suppliers manage accounts with CSX.

Log in to iSupplier

(You must have a User Name and Password issued by CSX.)

iSupplier portal password criteria:

  1. Contain at least three (3) letters and two (2) numbers
  2. May contain special characters
  3. Be between 6 to 8 characters


My iSupplier portal password doesn’t work. How do I reset password?

If you had individual portal access previously, please go to https://suppliers.csx.com/OA_HTML/AppsLocalLogin.jsp and click on iSupplier Login Assistance.



W9 Form (PDF)


iSupplier Portal Instructions

Buy America Certification (PDF)
Acknowledging a PO and Creating an Invoice (PDF)
Viewing Ship To and Alternate Address on a PO (PDF)
Submitting a Price Change Request (PDF)
Submitting a Quantity Change Request (PDF)
Adding a New Remit To Address (PDF)
Viewing Invoices or Payments (PDF)
Adding or Changing a Bank Account (PDF)
Exporting Data to Excel (Doc)
Printing Purchase Order in PDF Format (Doc)
nsKnox Intro Letter (PDF)

Have questions about iSupplier? Contact the iSupplier portal administrator at P&[email protected].