Nisource Headquarters & Corporate Office

Nisource Headquarters & Corporate Office address located in the state of United States at the city of Merrillville. Nisource is the one of the leading companies in its field. Nisource phone 219-647-5990. Nisource Headquarters Address is at 801 East 86Th Avenue, Merrillville, IN, United States, 46410-6271.

Nisource Corporate Phone Number – What is Nisource Corporate Phone Number?
Nisource phone number where you can speak to the head office, executive team and the different department is 219-647-5990

If you need to contact Norfolk Southern headquarters you need to call the number above and follow the automatic machine system that can direct you to Norfolk Southern Human Resources, Norfolk Southern Customer Service, Support, Finance, Legal, Sales, Marketing, Operations & Logistics and all other departments.

Nisource Address – What is Nisource Address?

Nisource headquarters & corporate office address where you can send official mail is:

801 East 86Th Avenue
IN 46410-6271
United States

Due to recent health situation worldwide, the Nisource corporation is subject to a daily change in activities according to the instructions of the authorities of IN United States. Please make sure to follow the updates in the news on business activities.

This website was built to provide the most up-to-date, important contact information about the Nisource Corporate Office & Headquarters including: Nisource Address, Corporate Number, Human Resources and more. is a leading independent website that has no affiliation to any state or federal agency, department, office, board, commission, or bureau.

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