Top ten construction companies in Canada, North America

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Canada is a huge country and it is developing quickly with lots of construction projects under development. In this article we look at the top ten construction companies in Canada, contributing to this sector which accounts for approximately 7 percent of the country’s gross domestic product (GDP).

PCL construction 

Founded in Saskatchewan by James Martin and Ernest Edward Poole in 1906, today PCL Construction employs more than 4,000 workers and has offices in Canada, the United States, the Caribbean, and Australia.

The company is by far one of the largest companies in Canada by revenue (US $8.4bn) and reputation, having delivered some of the large-scale institutional, residential, commercial, and educational construction projects in the country such as the Senate of Canada building, True North Square, Air Canada Centre, Four Seasons Hotel-Cafe Boulud and Ripley’s Aquarium of Canada.

Also Read: Top construction companies in California, USA

True North Square
True North Square

Its services range from constructability and budget control to smart construction, prefabrication, and modular construction, rehabilitation, construction management, and preconstruction services among others.


With a revenue of over US$ 4bn as of 2019, EllisDon is recognized as one of the largest construction companies in Canada having operated in every market sector across the globe.

It is committed to environmental reform in construction, and as a result, its executive leaders launched the Carbon Impact Initiative Action Plan to aid Canada’s sustainability commitments on the global stage. For on-ground activation, the company built the Joyce Centre for Partnership and Innovation Building—the first net-zero institutional building and Carbon Impact’s pilot program.

The company’s roots stretch back to 1951 and some of its notable recent include major upgrades to the famous Art Gallery of Ontario and the construction of Brampton Civic Hospital, as well as Toronto South Detention for Mimico Correctional Centre, Ottawa Light Rail Transit, Halifax Central Library, Yorkdale Shopping Centre, The University of British Columbia, Advanced Rare Isotope Laboratory (ARIEL), etc.

Aecon Group Inc.

Aecon boasts more than 12,000 employees and estimated revenues of over US$ 3bn as of 2019.

With multiple subsidiaries in the infrastructure, high-rise residential and commercial buildings, materials, and energy industries, the company has enabled the construction of hundreds of roads, theatres, book stores, power plants, hotels, factories, and smaller distribution facilities not only in North America but also South America, Asia, and the Middle East.

Some of these projects include the CN Tower, Gardiner Expressway, Montreal-Trudeau International Airport, Toronto, and Britannia Water Treatment Plant among others.

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CN Tower
Ledcor Group of Companies

With operations primarily in Canada and the United States, Ledcor has diversified in the construction of large-scale buildings and civil infrastructure, forestry, mining, property development and management, transportation, marine operations, and energy projects including oil, gas, and Liquefied Natural Gas.

The company has helped deliver projects such as the Albian Sands Energy Incorporated expansion in Fort McMurray, 565 Great Northern Way digital media facility in Vancouver, Southwest Calgary Ring Road, Air Canada Hangar 5, Kearl Lake, Albian Sands and Nunavut Fiber Optic Deployment.

In 2019, Ledcor’s revenue topped an estimated US$ 2.6bn.

Graham Construction

With several subsidiaries, including Graham Capital, Gracorp, Quinn, and Moltz Construction Incorporated, Graham Construction works on a variety of projects, with recent portfolio items including the Canadian Armed Forces Military Police Academy in Angus, Ontario, and a CFB Trenton Maintenance and Operations Hangar in Toronto.

SNC-Lavalin Group Inc

Headquartered in Montreal, SNC-Lavalin specializes in engineering, procurement, and construction (EPC) services across key capacity-enhancing sectors including oil and gas, environment and water, clean power, and mining and metallurgy.

With 50,000 employees or its thereabouts, the company operates in over 160 countries worldwide and it works with a future-forward vision of embedding sustainability and societal trends into their project delivery methods.

Key projects include Darlington Nuclear Generating Station, New Chaplain Bridge Corridor Project, Eglinton Crosstown Light Rail Transit and The Confederation Line, etc.

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Darlington Nuclear Generating Station
Dawson Wallace Construction

The Edmonton-based construction company has completed projects in Canada’s key growth sectors including restaurants, industrial warehousing, office buildings, schools, banking facilities, retail, and banking and library facilities among others.

Some of these projects include Amazon, Nose Creek Building E, Calgary; Tim Hortons; Edmonton Business Campus East, Phase 1, Edmonton; St Albert Inn, St Albert, Edmonton, Alberta; and Home Depot, Alberta.

Pomerleau Inc.

The company was founded in 1964 by Hervé Pomerleau and experienced rapid growth between 1964 and 1069 increasing its revenue from US$ 18,000 to US$ 1.6M. As of 2019, Pomerleau had an estimated US$ 2.4bn.

The company offers services such as civil construction, infrastructure construction, engineering services, marine construction works, and heavy industrial construction among others. The redevelopment of Lansdowne Park in Ottawa and the construction of The Videotron Center in Quebec City, are a few of Pomerleau’s projects.

Walsh Group Canada

Specialized in intelligence analysis, laboratory, warehouse distribution, and correctional sectors, Walsh Group is one of the largest general contracting and design-build firms in Canada as well as North America.

The company runs parallel operations in Canada and the United States working subcontractors in the civil, transportation, and building sectors. Some of its key projects include the Los Angeles International Airport Modernization, Veterans Memorial Bridge in Florida, Tarrant County College Energy Technology Center, Chicago Motor Club – Hampton Inn, and Maggie Daley Park among others.

Veterans Memorial Bridge
Veterans Memorial Bridge in Florida
Bird Construction

Traced back to Saskatchewan in 1920, Bird has been a leading force in the Canadian construction market for more than 100 years now. With more than 1,500 workers, its work is focused on sectors such as energy, mining, institutional, retail, residential, and civil construction.

Notable recent projects include the construction of the Whitby Rail Maintenance Facility and the Avenir Centre.

Bird Construction saw an estimated US$ 1bn in revenue in the year 2019.


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