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Integrys Energy Services, Inc. is now Constellation!

Effective April 1, 2015 Integrys Energy Services, Inc. has changed its name to Constellation Energy Services, Inc. No changes are being made to your contract term, price or terms and conditions of service as a result of this name change. Questions? Please continue to contact your current customer care and/or sales resources.

Read the Nov. 1, 2014 press release

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