TECO Energy Inc. is an energy-related holding company based in Tampa, Florida, and a subsidiary of Emera Incorporated. TECO Energy has several subsidiaries: Tampa Electric, which provides electricity to the Tampa Bay Area and parts of Central Florida; Peoples Gas Company, which provides natural gas throughout Florida; and TECO Services, which provides IT, HR, legal, facilities, and other services to current and former TECO subsidiaries. Previously the company was in the S&P 500 before it became private due its acquisition by Emera.

Emera Incorporated is a publicly traded Canadian multinational energy holding company based in Halifax, Nova Scotia. Created in 1998 during the privatization of Nova Scotia Power, a provincial Crown corporation, Emera now invests in regulated electricity generation as well as transmission and distribution across North America and the Caribbean.