About Constellation
Who We Are

A Leading Supplier of Innovative Energy Products & Services 

Constellation, an Exelon company, is a leading competitive energy company providing power, natural gas, renewable energy and energy management products and services for homes and businesses across the continental United States. We provide integrated energy solutions—from electricity and natural gas procurement and renewable energy supply to energy efficiency and distributed energy solutions—that help customers strategically buy, manage and use their energy.

More than 2.5 million residential, public sector and business customers, including 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.


The following is an overview of our diverse portfolio of energy solutions:


We have strong expertise in the policies and regulations that govern every local market and proactively provide our customers with market and regulatory updates to guide their energy management decisions. Our mission is to provide customers with energy in an easy and transparent process.

As part of Exelon’s family of companies, we strive for the highest standards in power generation, delivery and wholesale marketing. We are committed to providing superior value for our customers, employees, investors and the communities we serve.


Areas We Serve

Do we serve your state? Click below to view our interactive map.

Use the interactive map to see if Constellation Energy services are available in your area

Learn More About Exelon Corporation

Constellation joined the Exelon family of companies in 2012.

Visit Exelon's Website ›