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Integrys Energy Services, Inc. is now Constellation!
Effective April 1, 2015:
  • Integrys Energy Services, Inc is Constellation Energy Services, Inc.,
  • Integrys Energy Services - Natural Gas, LLC is Constellation Energy Services - Natural Gas, LLC and
  • Integrys Energy Services of New York, Inc. is Constellation Energy Services of New York, Inc.

No changes are being made to contract term, price or terms and conditions of services as a result of this name change. Questions? Please continue to contact your current customer care and sale resources.

About Constellation
Constellation, an Exelon company, is a leading competitive supplier of power, natural gas, renewable energy and energy management products and services for homes and businesses across the continental US. We provide integrated energy solutions—from electricity and natural gas procurement and renewable energy supply to demand-side management solutions—that help customers strategically buy, manage and use their energy.
More than 2.5 million residential, public sector and business customers, including more than two-thirds of the Fortune 100, rely on our commitment to innovation, dependability, transparency and service. That is the kind of value you and your communities can expect from Constellation.