NiSource Headquarters & Corporate Office

NiSource

NiSource

NiSource Inc. is one of the largest fully-regulated utility companies in the United States.

Industry 

Utilities

Corporate Phone Number

+1 219-647-5990

Customer Support Phone Number

1-800-457-2814

Headquartered Address

801 E. 86th Avenue, Merrillville,

Indiana United States

Email:

[email protected]

Website:

http://www.nisource.com/

This website is built to provide the most important contact information about the Corporate Offices & Headquarters including NiSource Address, Corporate Number and more.

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