Exelon Corporation is a leading public utility holding company based in Chicago, Illinois. As the largest regulated electric utility in the United States, Exelon serves over 10 million customers and focuses on electric and natural gas transmission and distribution. The company was formed in 2000 through the merger of PECO Energy Company and Unicom Corporation, and it has since expanded its operations through strategic acquisitions, including Constellation Energy and Pepco Holdings. Exelon operates six fully regulated utilities, providing reliable electricity and natural gas services primarily in the Mid-Atlantic and Midwest regions. The company is committed to customer satisfaction and has made significant investments in infrastructure to enhance service reliability. With a workforce of 20,000 employees, Exelon also prioritizes community support through various initiatives, including workforce development and economic growth. It ranks 187th on the Fortune 500 list, reflecting its strong position in the utility sector.