Supplier resource center
Find how-to guides to create invoices, register in Ariba and more!
Current Suppliers
Find supplier news, updates and more
NiSource values our relationships with our existing suppliers and strive to provide resources to help you do business with us. Thank you for your commitment to delivering reliable, quality service to NiSource and our customers.
Supplier news
Clearance for Work on NiSource Facilities is Now Required - April, 2022
To support upstream suppliers, contractors, and employees in obtaining a necessary clearance, NiSource recently stood up the Clearance Coordination Center (CC).
Click the link below to learn more about how to request a Clearance, what requires a Clearance, and how to contact the CC.
Transition to New Accounts Payable Service Provider - January 2022
This change only affects suppliers who access Catalyst and/or send invoices to Cognizant (via email or mail). This change does NOT affect those suppliers who currently upload invoices directly to Ariba.
Beginning February 28, 2022, NiSource will no longer use the Catalyst application for invoice processing and will begin using EDMonline to support suppliers who previously used Catalyst with their invoice processing inquiries and transaction processing, exceptions and utility disconnect.
Click the button below to view Frequently Asked Questions.
New NiSource Business Code of Conduct - December, 2021
NiSource has implemented a new Supplier Business Code of Conduct effective December 15, 2021. Click the link below to view the entire Supplier Business Code of Conduct.
Follow-up Message to Vendors and Suppliers - August, 2021
We are sending a clarification regarding the update that you received on Friday, July 23, regarding the NiSource Supply Chain/Procurement organization. As we informed you, the NiSource Supply Chain support model will be changing. However, we want to clarify that the invoicing process being used today has not changed as of this time.
Click the link below to view the full follow-up message from NiSource Vice President and Chief Tax and Procurement Officer, Sandra Brummitt.
Update for all NiSource Suppliers - July, 2021
NiSource NiSource Vice President and Chief Tax and Procurement Officer Sandra Brummit has provided an important update regarding the NiSource Supply Chain organization. As a result of the implementation of enhanced and streamlined processes and procedures and the engagement of Tata Consultancy Services (TCS), a third-party vendor, the NiSource Supply
Chain support model will be changing.
Click the link below to view the full announcement and changes effective July 26, 2021
Get supplier support
Need more help? Use our online contact form to submit your questions to NiSource Supply Chain, Procurement, or Accounts Payable.
Get clearance for work
Learn how to request a clearance based on the type of work to be performed.
Note: All content on this page are subject to change. Please continue to check for the most up-to-date documents.