Nisource Corporate Office Phone Number

What is Nisource corporate office phone number?

Nisource corporate office phone number for the executives offices and corporate departments is 219-647-5990.

The Nisource corporate office phone number provided above, connects you to the main switchboard where you be able to be directed to the right person in the different departments after the initial welcome message: Nisource corporate office CEO, executive vice presidents, managing directors, marketing and sales department, finance and accounting, human resources, administrative office, customer service, support, operations, logistics and legal.

Nisource Corporate Address – What is Nisource corporate address?

Nisource corporate office address wher you can send official mail to Nisource head office is:

Nisource corporate office address is 801 East 86Th Avenue, Merrillville, Indiana 46410-6271, USA.

Nisource Corporate Office
Address: 801 East 86Th Avenue
City: Merrillville
State / Zip Code: Indiana 46410-6271
Country: USA

Nisource corporate office is following the guidelines and regulation provided by both the authorities of the city of Merrillville and of the state of Indiana (due to the Coronavirus). Nisource corporate office hours of operation are the same, but you are advised to track and follow up with the updates & new information published on Nisource website and on the general news as local or state lockdowns may occur. is a leading website that was created to provide users with the most updated and best Nisource corporate office phone number for free. Please note that your phone company may charge you for this call according to your personal communication contract. is working around the clock investing multiple resources to make sure that the best information is available at any point of time for Nisource corporate office phone number and additional important details for Nisource corporate office and thousands of leading companies locally and nationwide. We would appreciate if you informed when you find new information by writing us and share the new information you have, and we will make it available on this website.

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