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CMS Energy is a Michigan-based company that has an electric and natural gas utility, Consumers Energy, as its primary business and also owns and operates independent power generation businesses.
Saipem America is a Houston, TX-based company in the Energy and Utilities sector.
Arnett and Burgess is a Calgary, AB-based company in the Energy and Utilities sector.
Madison Electric Company is a Warren, MI-based company in the Energy and Utilities sector.
Wind Capital Group, LLC develops, builds, and manages wind energy projects in the central United States. The company was founded in 2005 and is based in Saint Louis, Missouri. It has additional offices in St. Louis, Missouri; Madison, Wisconsin; and Chicago, Illinois. As of April 24, 2008, Wind Capital Group, LLC operates as a subsidiary of NTR plc.