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This is a list of companies in the Chicago metropolitan area. The Chicago metropolitan area – also known as "Chicagoland" – is the metropolitan area associated with the city of Chicago , Illinois , and its suburbs. [ 2 ]
For more than 100 years, Commonwealth Edison has been the primary electric delivery services company for Northern Illinois. Today, ComEd is a unit of Chicago-based Exelon Corporation, one of the nation's largest electric and gas utility holding companies. ComEd provides electric service to more than 3.8 million customers across Northern Illinois.
Ideal was founded in 1916 by J. Walter Becker as the Ideal Commutator Dresser Company in Chicago, Illinois, manufacturing commutator dresser stones. [6] In 1924, Becker relocated the company to its current location in Sycamore, Illinois. [7] By 1949, it had become the United States' leading producer of wire nuts. [8]
Exelon Corporation is a public utility headquartered in Chicago, and incorporated in Pennsylvania. [1] Exelon is the largest electric parent company in the United States by revenue and is the largest regulated electric utility in the United States with approximately 10 million customers. The company is ranked 99th on the Fortune 500. [2]
The name Newark pays homage to Newark, New Jersey. The company published its first paper catalog in 1948. The company published its first paper catalog in 1948. Over the course of the next three decades, Newark Electronic's phonebook-sized catalog grew to be a widely recognized hallmark within the electronic components industry, occasionally ...
Pages in category "Companies based in Chicago" The following 200 pages are in this category, out of approximately 441 total. This list may not reflect recent changes .
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The current iteration of the company was founded in 2022 after splitting off from Exelon. [5] Before merging with Exelon, Constellation Energy Group operated more than 35 power plants in 11 states (mainly Maryland, Pennsylvania, New York, West Virginia, and California). Baltimore Gas and Electric created Constellation as a holding company in 1999.