Nisource Corporate Office
We have listed below Nisource corporate office details including the full address to mail the company and the best Nisource phone number. Nisource Headquarters Address is at 801 East 86Th Avenue, Merrillville, IN, USA, 46410-6271. They are available on their usual working hours and can be contacted after business hours via email or live chat online.
What is Nisource Corporate Phone Number?
Nisource Corporate Phone Number is 219-647-5990
For direct communication with Nisource corporate office, call the number provided above and use the automatic voice operating system that will direct you the right person at Nisource corporate office including management, sales, finance, human resources, Nisource customer service, support, legal and all other departments.
What is Nisource Corporate Office Address?
801 East 86Th Avenue
Due to the COVID-19 pandemic Nisource corporate office is acting accoriding to the guidance of the IN authorities. Nisource corporate office hours may change – please make sure to follow the updates Nisource official website and the news for business activities including lockdowns.
The phone number provide in this page may not be a toll-free phone number and you may get charged while calling this number at the usual calling prices according to your operator. This Nisource corporate office number is available on normal working hours and may be closed during some official holidays.
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