Thomas A. McKenna

UNS Energy Corp. operates as a utility services holding company that engages in the electric generation and energy delivery services through its subsidiaries. The company is headquartered in Tucson, AZ.

UNS Electric, Inc. provides energy utility services. It generates and transmits electric energy. The company is headquartered in Tucson, AZ.

Nations Energy Corp. operates as an integrated sustainable bioenergy company. It focuses on the creation of carbon neutral energy and bio fuels from Mountain Pine Beetle killed biomass. The company’s business includes developing, acquiring, and managing forestry licenses to sustainably harvest wood fiber in the province of BC. It works with First Nations communities in BC on forestry management, fiber supply agreements, employment opportunities and project revenue sharing. The company is headquartered in Vancouver, Canada.

Sargent & Lundy LLC engages in the provision of engineering, construction management, and consulting services. It offers nuclear power, coal, oil and gas, environmental services, power transmission, renewable energy, energy business consulting, construction management and commissioning, operations, and maintenance support services. The company was founded by Frederick Sargent and Ayres Lundy in 1891 and is headquartered in Chicago, IL.

Part of Fortis, Inc., UNS Gas, Inc. is a company that distributes natural gas. The company is based in Tucson, AZ.

Part of Fortis, Inc., UniSource Energy Services, Inc. is a company that provides natural gas services. The company is based in Kingman, AZ. Susan M Gray has been the CEO of the company since 2020.