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UNS Energy is the Tucson, Arizona-based parent company of Tucson Electric Power (TEP) and UniSource Energy Services (UES). TEP serves more than 414,000 customers in and around Tucson, while UES provides natural gas and electric service to about 243,000 customers in northern and southern Arizona. UNS Energy is a subsidiary of Fortis, the largest investor-owned electric and gas distribution utility in Canada. Fortis` regulated utility subsidiaries serve more than 3 million customers across Canada and in the United States and the Caribbean. Fortis also owns non-regulated hydroelectric generation assets in Canada, Belize and upstate New York.
Envent Engineering, Ltd. is a Calgary, AB-based company in the Energy and Utilities sector.
Boswell Oil is a Unadilla, NY-based company in the Energy and Utilities sector.
Line Ampacity System is a Manassas, VA-based company in the Energy and Utilities sector.
R L Douglass Electric Inc is a Huntington Beach, CA-based company in the Energy and Utilities sector.