Fortis Inc. is a St. John's, Newfoundland and Labrador based international diversified electric utility holding company. It operates in Canada, the United States, Central America, and the Caribbean. In 2015, it earned $6.7 billion CAD.Fortis was formed in 1987 when shareholders of the regulated transmission and distribution utility Newfoundland Light & Power Co. voted to form a separate holding company. NL&P shares were exchanged for Fortis shares on a one-to-one basis, with the regulated NL&P becoming a 100% owned subsidiary.
Fortis currently owns the following regulated utilities:

FortisBC, a utility in British Columbia
FortisAlberta Inc., a holding company for assets purchased from Aquila, Inc.
Central Hudson Gas & Electric, a utility in New York
Tucson Electric Power and UniSource Energy Services, utilities in Arizona
Newfoundland Power, serving 85% of the population of Newfoundland and Labrador
Maritime Electric, serving 90% of the population of Prince Edward Island
FortisOntario, a holding company for Canadian Niagara Power, Cornwall Electric, and Algoma Power
Caribbean Utilities, a utility in the Cayman Islands
FortisTCI, a utility in the Turks and Caicos Islands
Belize Electricity Limited, a utility in Belize
ITC Transmission, Novi, MichiganFortis also operates three non-regulated companies:

Fortis Generation, hydro generation in New York state and central Newfoundland.
Griffith Energy Services, a petroleum supplier in the eastern United States.