The former Integrys Energy Group and its operating companies were recently acquired and now do business as WEC Energy Group. Suppliers and individuals seeking employment may use the links below to find information about working with Michigan Gas Utilities, Minnesota Energy Resources, North Shore Gas, Peoples Gas, Wisconsin Public Service and Trillium CNG.

Contact Us

By Phone

  • General Inquiries:
    312-228-5400
    800-699-1269
    8:00 a.m. to 4:30 p.m. CST
    Monday through Friday
  • Investor Relations:
    800-228-6888
    8:00 a.m. to 4:30 p.m. CST
    Monday through Friday
  • Media Hotline:
    800-977-2250

By Email

Complete the form below. We will respond as soon as possible.

By Mail

  • General Inquiries:
    Integrys Energy Group, Inc.
    200 East Randolph Street
    Chicago, IL 60601
  • Investor Relations:
    Integrys Energy Group, Inc.
    200 East Randolph Street
    Chicago, IL 60601

Vendors

Please see information for supplier representatives on this website.

If you have a question or comment about your energy bill or service, please contact your local utility or energy supplier directly:

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