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Contact Us

Call or email. We want to hear from you.

Our contact channels can be found below. If you're a customer, media representative, or just looking for assistance or additional information, use one of the ways below to get in touch with us.

Individual Stockholders:

Computershare at 1-888-884-7790

Retirees (Benefit Information):

Hewitt Associates at 1-888-640-3320


Send Us a Message

We review all submissions and forward them to the appropriate person, department or business. Please note this is a generic submission for NiSource and should not be used for customer service inquiries.

CUSTOMER SUPPORT

NIPSCO

Electrical Outage, Emergency: 1-800-4NIPSCO
(1-800-464-7726)
Gas Emergency: 1-800-634-3524
Customer Care: 1-800-4NIPSCO
www.nipsco.com

Columbia Gas of Kentucky

Emergency: 1-800-432-9515
Customer Care: 1-800-432-9345
www.columbiagasky.com

Columbia Gas of Maryland

Emergency: 1-888-460-4332
Customer Care: 1-888-460-4332
www.columbiagasmd.com

Columbia Gas of Massachusetts

Emergency: 1-800-525-8222
Customer Care: 1-800-688-6160
www.columbiagasma.com

Columbia Gas of Ohio

Emergency: 1-800-344-4077
Customer Care: 1-800-344-4077
www.columbiagasohio.com

Columbia Gas of Pennsylvania

Emergency: 1-888-460-4332
Customer Care: 1-888-460-4332
www.columbiagaspa.com

Columbia Gas of Virginia

Emergency: 1-800-544-5606
Customer Care: 1-800-543-8911
www.columbiagasva.com



Our Locations

Please note: The locations below are not customer service centers or authorized payment locations.

Columbia Gas of Kentucky Headquarters

2001 Mercer Road
Lexington KY 40511 Map

Columbia Gas of Maryland Headquarters

121 Champion Way
Canonsburg PA 15317 Map

Columbia Gas of Massachusetts Headquarters

4 Technology Drive
Westborough MA 01581 Map

Columbia Gas of Ohio Headquarters

290 W. Nationwide Boulevard
Columbus OH 43215 Map

Columbia Gas of Pennsylvania Headquarters

121 Champion Way
Canonsburg PA 15317 Map

Columbia Gas of Virginia Headquarters

1809 Coyote Drive
Chester VA 23836 Map

NIPSCO Headquarters

801 E. 86th Avenue
Merrillville IN 46410 Map

NiSource Corporate Headquarters

801 E. 86th Avenue
Merrillville IN 46410 Map

Connect with Us on Social Media

Twitter logoTwitter

Join our conversation, share your thoughts and questions. 

@nisourceinc

Facebook logoFacebook

Follow us to stay updated on interesting news and events.

facebook.com/nisource

LinkedIn logoLinkedIn

Learn about what makes our company great - our coworkers. 

linkedin.com/company/nisource