ATCO

ATCO Ltd.
ATCO Group
FormerlyAlberta Trailer Company
TypePublic
TSX: ACO.X (Non-voting)
TSX: ACO.Y (Voting)
IndustryElectricity generation and distribution, natural gas, construction, logistics
Founded1947
FoundersS. Don Southern & Ron Southern
HeadquartersCalgary, Alberta, Canada
Key peopleNancy Southern (CEO)
Number of employees
7,500 (2022)
Websitewww.atco.com

ATCO Ltd., operating as the ATCO Group, is a publicly-traded Canadian engineering, logistics and energy holding company based in Calgary, Alberta. ATCO's subsidiaries include electric utilities, natural gas production and distribution companies, and construction companies.

Subsidiaries

The ATCO Group of Companies includes the following subsidiaries:

Canadian Utilities

Canadian Utilities Limited
TypePublic
TSX: CU
IndustryElectric Utilities
Headquarters
Calgary
,
Canada
Key peopleNancy Southern (CEO)
RevenueDecrease3,796 billion CAD (2023)
Increase717 million CAD (2023)
Total assetsIncrease23,158 billion CAD (2023)
Number of employees
8,000 (2023)
ParentATCO
Websitewww.canadian-utilities.com

Canadian Utilities Limited, a member of the ATCO Group of companies, is a Canada-based worldwide organization of companies with around $22 billion in assets and more than 8,000 employees.

Canadian Utilities has three business units:

  • ATCO Energy Systems (previously Utilities): electricity and natural gas transmission and distribution, and international electricity operations. Areas served include northern and central-eastern Alberta, the Yukon, the Northwest Territories, the Lloydminster area of Saskatchewan, and international energy users. Its subsidiaries include:
    • ATCO Electric: an electric utility company based in Edmonton, Alberta that transmits and distributes electricity to two thirds of Alberta, namely in north and east-central Alberta, as well as communities in Yukon and the Northwest Territories. ATCO Electric Yukon, formerly Yukon Electrical Company Limited (YECL), is a private electrical utility based in Whitehorse, Yukon, serving most Yukon communities and Lower Post, British Columbia. The company was founded in 1901. Though it owns one hydro-electric and a number of diesel generating facilities of its own, it purchases most of its power wholesale from the Yukon Energy Corporation and distributes it to consumers. From 1987 to 1997, it operated the services of Yukon Energy under contract, but in 1997, the Yukon government chose not to renew the arrangement; Yukon Energy established its own offices for management and customer service, while YECL continued to operate its own facilities.
    • LUMA Energy LLC (50 per cent ownership with Quanta Services), international electricity operations.
    • ATCO Gas
    • ATCO Pipelines
    • ATCO Gas Australia
  • ATCO EnPower (previously Energy Infrastructure): energy storage, electricity generation, industrial water solutions, renewables and 'next energy' - including hydrogen, ammonia, hydro, liquefied natural gas, natural gas, and carbon capture. Areas served include Alberta, the Yukon, the Northwest Territories, Ontario, Australia, Mexico, and Chile. Its subsidiaries include:
    • ATCO Renewables (previously ATCO Power)
    • ATCO Next Energy (previously ATCO Energy Solutions)
    • ATCO Power Australia
  • ATCO Energy: electricity and natural gas retail sales, and whole-home and business solutions. Includes Canadian Utilities Limited Corporate, and Other segments.

Canadian Utilities' controlling share owner is the Southern family.

History

ATCO was founded in 1947, by S. Don Southern who gave a minority stake to his son Ron Southern, under the name Alberta Trailer Hire, renting fifteen utility trailers in the Calgary area. As the company's operations grew, they also began to sell trailers, first becoming the Alberta Trailer Company, then ATCO. By the early 1960s, the company had operations across North America and in Australia.

ATCO Industries Ltd. became a public company in March 1968, with shares traded on the Toronto Stock Exchange. During the 1970s, the company expanded into the natural gas and petroleum industries, and into the electricity industry in the 1980s.

In 2004, with the deregulation of the retail energy industry in Alberta, ATCO sold the retail operations of ATCO Gas and ATCO Electric to Direct Energy Marketing Ltd. (DEML) while ATCO Gas and ATCO Electric still operated as "distributors" (owning and operating the infrastructure that delivers natural gas or electricity in its service territories). As part of the sale to DEML, DEML contracted call center and billing services from ATCO I-Tek. In 2016, ATCO re-entered the retail energy industry in Alberta as ATCO Energy and in 2025 added home services as a service offering.

In 2018, ATCO acquired 40% of the shares in Neltume Ports, a South American port terminal operator.

In 2022, ATCO agreed to pay a fine after overcharging for work on a new transmission line.

References

  1. 1 2 "Stock Information". www.atco.com. ATCO Ltd. Archived from the original on 21 May 2017. Retrieved 26 February 2017.
  2. ↑ "Power Stations | ATCO Australia". www.atco.com. Archived from the original on 2025-11-19. Retrieved 2026-02-17.
  3. ↑ ATCO Expands in Australia
  4. ↑ "Canadian Utilities | About Us". www.canadianutilities.com. Retrieved 2024-05-08.
  5. ↑ "Our Businesses". www.canadianutilities.com. Retrieved 2024-05-08.
  6. ↑ Canadian Utilities, ATCO Group (31 December 2023). "Annual Financial Statements" (PDF).
  7. ↑ Foran, Max (1982). Calgary, Canada's frontier metropolis : an illustrated history. Windsor Publications. p. 280. ISBN 0-89781-055-4.[permanent dead link]
  8. ↑ "Alberta Utilities Commission approves $31M ATCO fine, says in public interest | Globalnews.ca".