40 Largest construction companies in Canada

40 Largest construction companies in Canada

The Canadian construction market has shown significant growth and resilience in recent years. While initially valued at $325.1 billion in 2021, the market reached $351.1 billion in 2023, surpassing earlier projections of $304.6 billion. As of 2024, the market size has been valued at USD 266.7 billion.

Future Projections for the Canadian Construction Industry

The market is expected to reach USD 417.3 billion by 2033, exhibiting a Compound Annual Growth Rate (CAGR) of 5.10% from 2025-2033.

Key Canadian Construction Statistics for 2025

CategoryProjection
Large ProjectsMore than $171 billion in large projects could break ground
Industry Growth RateExpected to rebound at an annual average growth rate of 2.2%
Top Vertical: Manufacturing$58 billion in projected spending
Top Vertical: Transportation Terminals$47 billion in projected spending
Top Vertical: Retail Stores$34 billion in projected spending
Largest Infrastructure Project$17 billion Alberta to Alaska rail line development project

Top 40 largest construction companies in Canada

Check out our list of Canada’s 40 largest construction companies, based on revenue in 2023, as determined by annual research from On-Site. We’ll also take a closer look at Canada’s top 10 construction companies to understand what makes them so prominent in the industry.

RankCompany2023 Revenues
1PCL Construction$9,900,000,000
2EllisDon Corporation$6,815,000,000
3Ledcor Group of Companies$5,000,000,000
4Pomerleau$4,956,000,000
5Aecon$4,644,000,000
6Graham Construction$4,130,000,000
7Kiewit Canada Group Inc.$3,798,708,000
8Vinci$3,296,065,940
9Bird Construction Inc.$2,798,800,000
10Flatiron$2,450,320,000
11Flynn Group of Companies$1,580,000,000
12Michels Canada Co.$1,418,784,000
13EBC inc.$1,349,000,000
14North American Construction Group$1,300,000,000
15Broccolini$1,017,000,000
16Magil Construction Canada Inc.$825,000,000
17Reliance Construction of Canada Ltd.$770,000,000
18Canadian Turner Construction$755,700,000
19Chandos Construction$673,910,016
20FLINT$655,745,000
21Maple Reinders$615,000,000
22On Side Restoration$489,000,000
23Govan Brown & Associates Ltd.$472,158,667
24Matheson Constructors$465,000,000
25Strike Group$422,000,000
26Clark Builders$401,897,887
27Nexrock Design Build$400,000,000
28FWS Group of Companies$344,670,000
29Buttcon ltd$330,000,000
30Dawson Wallace Construction Ltd$280,000,000
31Delnor Construction Ltd.$245,000,000
32Bockstael Construction Ltd.$223,146,000
33Gillam Group$198,000,000
34Marco Group Limited$183,000,000
35Priestly Demolition$181,000,000
36Fortis Construction Group Inc.$174,000,000
37Fillmore Construction Management Inc$170,226,000
38M Builds$154,000,000
39Grascan Construction Ltd.$147,000,000
40Orion Construction$138,395,218

A closer look at the top 10 construction companies in Canada

Now that you’ve seen the full list let’s take a closer look at the ten largest Canadian construction companies based on revenue.

#1. PCL Construction

PCL Construction takes the top spot by quite a large margin, bringing in $7.6 billion compared to the second-largest company’s roughly $4.9 billion.

James Martin and Ernest Edward Poole founded the company in Saskatchewan in 1906. Today, it employs over 4,000 workers and has offices in Canada, the United States, the Caribbean, and Australia.

PCL’s noteworthy projects are almost too many to count, including rehabilitating Canada’s historic West Block building on Parliament Hill and restoring the nearby Senate of Canada Building.

Beyond building restoration, PCL’s services include procurement, design, and construction management in just about every sector imaginable.

#2. EllisDon Corporation

EllisDon is a Mississauga-based, employee-owned construction company with offices worldwide (including 15 in Canada alone).

The company’s roots stretch back to 1951 when brothers Don and David Ellis Smith began performing small renovations.

Today, EllisDon’s projects are anything but small, however. The giant’s notable work includes major upgrades to the famous Art Gallery of Ontario and the construction of Brampton Civic Hospital in partnership with a consortium of other firms.

EllisDon pulled in an estimated $4,974,492,000 in 2021, making it undoubtedly one of the most successful Canadian construction companies.


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#3. Aecon Group Incorporated

Aecon Group Incorporated boasts more than 12,000 employees and estimated revenues of $3,977,000,000 in 2021.

The company’s historical provenance is just as staggering, with noteworthy projects including the CN Tower, Gardiner Expressway, and Montreal-Trudeau International Airport.

Aecon operates in several sectors, including civil, transportation, utilities, industrial, and nuclear. It has completed projects in North America, South America, Asia, and the Middle East.

#4. Graham Construction

Graham Construction is one of the largest construction companies in Canada, focused on the industrial and infrastructure sectors. The company started in 1926 at Canadian Pacific Railway stations in Moose Jaw, Saskatchewan.

Today, Graham Construction works on various 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.

Graham Construction is an employee-owned firm with several subsidiaries, including Graham Capital, Gracorp, Quinn, and Moltz Construction Incorporated.

#5. Kiewit Canada Group Incorporated

Kiewit is a truly historic company, having been founded in 1884. It has been one of the largest contenders in the Canadian construction market for more than 75 years, serving sectors such as mining, power, and transportation.

Kiewit has received several awards in Canada and is considered one of the nation’s best employers in recent years. Its estimated 2021 revenue of $3,005,000,000 also makes it one of the largest construction companies operating in Canada.

#6. Ledcor Group of Companies

Ledcor Group of Companies is an employee-owned construction company with primary operations in Canada and the United States. It was founded by a man named William Lede in 1947 and currently employs roughly 6,000 workers.

Notable recent projects include work on the Albian Sands Energy Incorporated expansion in Fort McMurray and the 565 Great Northern Way digital media facility in Vancouver.

In 2021, Ledcor’s revenue topped an estimated $3 billion.

#7. Pomerleau Incorporated

Pomerleau Incorporated was founded in 1964 by Hervé Pomerleau. The company grew rapidly throughout the rest of the decade, with revenue jumping from just $18,000 in 1964 to $1.6 million by 1969.

Pomerleau Incorporated’s projects today include the redevelopment of Lansdowne Park in Ottawa and the construction of the Videotron Centre in Quebec City.

Pomerleau Incorporated pulled in an estimated $2,957,456,000 in 2021, firmly cementing its place among the largest Canadian construction companies.

#8. Bird Construction Incorporated

Bird Construction has been a leading force in the Canadian market for more than 100 years. The company’s humble beginnings trace back to Saskatchewan in 1920.

Bird’s current work focuses on the energy, mining, institutional, retail, residential, and civil construction sectors. Notable recent projects include the construction of the Whitby Rail Maintenance Facility and Avenir Centre.

Bird Construction Incorporated employs over 1,500 workers and saw an estimated $2,220,026,000 in revenue for 2021.

#9. Broccolini Construction

Broccolini Construction has been around since 1949 and was founded in Montreal, focusing on residential construction until the 1970s, when it branched out into the commercial and industrial sectors.

In 2021, the company pulled in a whopping $1,286,000,000.


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#10. Flynn Group of Companies

The Flynn Group’s estimated 2021 haul of $1,184,502,525 is nothing to scoff at. The company has been in business for over 40 years, offering commercial glazing, roofing, and cladding services throughout North America. 

It employs more than 5,000 people and has a staggering number of locations from coast to coast, including in the United States.

Quick facts about Canada’s construction industry

To help you understand how the Canadian construction companies on this list can achieve such tremendous success, let’s take a quick look at Canada’s construction industry as a whole.

Here are some quick facts about Canada’s construction industry:

  • Construction is one of the nation’s most important sectors, accounting for 14% of the country’s GDP and employing more than one million people, according to Canada’s Building Trades Unions (CBTU).
  • The construction industry has grown rapidly since the post-war era, pushing through setbacks like the Great Recession and COVID-19. Despite the pandemic, Statistics Canada reported a jump in the value of nearly 20% in 2021.
  • Spending on infrastructure assets rose by more than $7 billion in 2021.
  • A shortage of skilled workers means greater efforts are being made to attract workers from all backgrounds, with 75% of companies in recent years looking to recruit youth, newcomers to Canada, Indigenous workers, and women.
  • In the last decade, the Canadian construction industry has seen significant innovation, using 3D models, AI, and drones to reduce waste and increase productivity.
  • Despite inflation and foreseeable issues procuring materials due to the COVID-19 pandemic, On-Site’s 2022 Top Contractors survey participants are optimistic due to the steady demand for building.

We hope this article has provided you with valuable insights into the sector’s key domestic players.

For more content about the construction industry, visit our blog.

Frequently Asked Questions

Which is the biggest construction company in Canada?

The biggest construction company in Canada is PCL Construction, with an annual revenue of $7.6 billion.

Who is Canada’s most trusted contractor?

EllisDon Corporation is often regarded as one of Canada’s most trusted contractors due to its extensive portfolio and consistent performance.

What is the largest concrete company in Canada?

The largest concrete company in Canada is Lafarge Canada, a leading provider of construction materials including cement, aggregates, and ready-mix concrete.

What is the largest construction union in Canada?

The largest construction union in Canada is the Labourers’ International Union of North America (LiUNA).

What are the 3 biggest unions in the country?

The three biggest unions in Canada are the Canadian Union of Public Employees (CUPE), the National Union of Public and General Employees (NUPGE), and Unifor.

What are the largest building materials companies in Canada?

The largest building materials companies in Canada include Lafarge Canada, CRH Canada Group Inc., and Lehigh Hanson.

Who is Canada’s largest home builder?

Canada’s largest home builder is Mattamy Homes, known for its extensive residential developments across the country.

How many construction firms are there in Canada?

There are approximately 50,000 construction firms in Canada, ranging from small contractors to large multinational corporations.


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