Canada’s construction industry remains one of the country’s most important economic sectors, driving infrastructure development, urban expansion, commercial growth, and large-scale residential projects. From transportation networks and energy facilities to skyscrapers and public infrastructure, construction companies in Canada play a critical role in shaping the nation’s economy and modern landscape.

Leading firms such as PCL Construction, EllisDon, Aecon Group, Graham Construction, Kiewit Canada, and Ledcor Group have established strong reputations through major projects, engineering expertise, and innovation across residential, commercial, industrial, and infrastructure sectors.

In this article, we explore the List of Top 10 Construction Companies in Canada [2026], highlighting the industry leaders transforming Canada’s construction landscape.

Top 10 Construction Companies in Canada (2026)

PCL Construction

PCL Construction is a leading construction company in Canada with a history dating back to 1906. The company is employee-owned, with more than 4,900 employees across Canada, the United States, Australia, and the Caribbean. PCL offers a wide range of construction services, including buildings, civil, industrial, and special projects.

PCL is known for its high-quality work, its commitment to safety, and its strong financial performance. The company has been recognized as one of Canada's Top 100 Employers for 14 consecutive years. PCL has a strong financial performance and has been profitable for many years. This financial strength gives the company the resources it needs to invest in new technologies and expand into new markets.

One of the biggest building construction companies in Canada diversified its services, which reduces its reliance on any one market or sector. The company has also diversified its services, adding new areas of expertise such as modular construction and virtual design and construction.

PCL’s Special Projects Division set a company record in 2024 by securing nearly 270 projects worth approximately US$500 million, with individual awards ranging from US$10,000 to US$15 million across buildings, civil, and industrial sectors. This diversification supports resilience across market cycles.

In 2026, PCL continues to expand its portfolio through major healthcare, transportation, water, nuclear-adjacent, and institutional projects, while maintaining an annual construction volume of US$9.9 billion (C$13.8 billion).

EllisDon

EllisDon is a leading construction services company based in Canada with a rich history spanning over 70 years. Founded in 1951 by Don Smith and David Ellis Smith, the company has grown to become one of the largest and most reputable construction firms in the country. EllisDon operates across various sectors, including commercial, institutional, industrial, and residential construction, providing a wide range of services from pre-construction to post-construction stages.

EllisDon's impressive market presence extends beyond Canada, with the company undertaking projects across the globe. Over the years, it has successfully expanded its operations into international markets, including the United States, the Middle East, and the United Kingdom. The company's global reach demonstrates its ability to adapt to diverse regulatory environments and deliver world-class construction solutions on an international scale.

From iconic high-rise buildings, hospitals, and educational institutions to infrastructure and major industrial projects, the company showcases its expertise across different domains. This diversified approach enables EllisDon to mitigate risks associated with economic fluctuations and capitalize on opportunities across multiple sectors.

In North Bay, EllisDon completed the C$63 million WFCU Place community recreation centre at the Steve Omischl Sports Field Complex; the facility officially opened in August 2026 with two ice pads, a walking track, community space, and 14 dressing rooms.

Separately, the ED+PCL Healthcare Partners joint venture of EllisDon and PCL is delivering the Peter Gilgan Mississauga Hospital redevelopment, while EllisDon is separately delivering the C$1.3 billion Gilgan Family Queensway Health Centre in Etobicoke, scheduled to open in late 2029.

Aecon Group

Aecon Group Inc. is a Canadian construction and infrastructure development company. It is headquartered in Toronto, Ontario, and has operations across Canada, the United States, and the Caribbean. Aecon was founded in 1867 and is one of the largest construction companies in Canada.

Aecon's Construction segment delivers integrated services and solutions to private and public-sector clients in the Civil, Urban Transportation, Nuclear, Utilities, and Industrial sectors. The company's Concessions segment provides construction project development, financing, investment, and project management services.

Aecon has a long history of delivering complex and challenging infrastructure projects. The Confederation Bridge, The Calgary Cancer Centre, The Darlington Nuclear Generating Station, The Eglinton Crosstown Light Rail Transit, and The Port Mann Bridge are some of the key projects undertaken by the company.

Aecon is a well-positioned company for continued growth. The company has a strong track record of success, a talented workforce, and a commitment to innovation. Aecon is also well-positioned to benefit from the growing demand for infrastructure investment in Canada and around the world.

Westinghouse and Aecon signed collaboration agreements in December 2024 to support AP1000 new-build deployment and component manufacturing in Canada and internationally.

By 2026, Aecon had reaffirmed the partnership, expanded its utilities platform through the KPC acquisition and the buyback of preferred equity in Aecon Utilities, and secured C$3 (USD 2.15 billion) billion in aggregate contracts for the Pickering Nuclear Generating Station refurbishment.

Graham Construction

Graham Construction is a well-established and one of the biggest construction companies with a strong presence in Canada. The hundred-year-old company has a rich history of delivering high-quality construction projects across various sectors, making it one of the leading general contractors in Canada.

Graham Construction boasts a diverse portfolio, including commercial, industrial, institutional, and infrastructure developments. With extensive expertise in multiple sectors, the company is well-equipped to take on complex and large-scale projects.

Graham Construction has a solid reputation for delivering projects within time and budget. This, in turn, has helped the company to consistently meet client expectations and get repeated business opportunities. Due to its well-diversified portfolio and ability to adopt innovative construction technology, Graham Construction appears well-positioned for future growth and expansion.

In February 2025, Northern Ireland approved the £671 million (approximately US$842 million) New Children’s Hospital at Belfast’s Royal Victoria Hospital site, with £389 million (approximately US$488 million) allocated for construction works. The Graham-BAM Healthcare Partnership was initially appointed to deliver the 52,000-square-metre, 10-storey hospital, but BAM Ireland withdrew from the partnership in April 2025. Construction began in March 2025 and is planned over five years; as of 2026, Graham continues to deliver the project, which will provide 155 beds, 10 theatres, and an emergency department capable of serving up to 45,000 children

Kiewit Canada

Kiewit Canada is a subsidiary of Kiewit Corporation, one of the largest EPC companies in North America. Kiewit Canada has been operating in Canada since 1941 and has a strong track record of delivering complex and challenging projects.

Kiewit Canada is committed to safety, quality, and environmental stewardship. The company has a strong track record of safety performance and has been recognized with numerous safety awards.

Due to its capabilities in building, civil, industrial, and mining projects, Kiewit Canada is considered one of the top civil engineering and construction companies in Canada. Their diverse expertise across various sectors underscores their adaptability and ability to deliver complex and innovative projects that contribute to the development and progress of the nation.

The $133 million North Runway Modernization Program at Vancouver International Airport (YVR / Runway 8L-26R) was completed on time in October 2025. As of 2026, official sources from YVR and Kiewit confirm the runway has returned to full service with no ongoing construction under this contract.

Ledcor Group

Ledcor Group is a prominent Canadian construction and diversified company with a rich history that spans over 70 years. Founded in 1947, the company has evolved into a well-established organization, offering a wide range of services across multiple industries, including construction, infrastructure, mining, telecommunications, and renewable energy.

Ledcor Group's diversified portfolio allows it to operate in various sectors, providing services tailored to the unique needs of different industries. From large-scale construction projects to complex infrastructure developments and resource extraction ventures, the company's versatility is a key strength that enables it to thrive in dynamic market conditions.

Over the decades, Ledcor Group has earned a solid reputation for delivering projects with excellence and precision. Its extensive experience in handling diverse projects, combined with a client-focused approach, has established it as a trusted partner in the construction and development industries.

On 6th February 2025, Telus Living and Ledcor Group announced their partnership to develop a 225-Storey rental tower in East Vancouver. This project will include 5,444 sq.ft of indoor amenity space and 5,096 sq.ft of outdoor amenity space, 120 vehicle parking stalls, and 495 bicycle parking spaces across a four-level underground parkade. To track this project and get exclusive details, subscribe to 

Pomerleau

Pomerleau is a Canadian construction and engineering company founded in 1966. It is located in Montreal, Quebec, and has more than 4,000 employees. Pomerleau is one of Canada's leading general contractors and offers a wide range of services, including Civil and Public infrastructure. It is also active in the industrial construction sector such as factories, refineries, and pipelines.

Their ability to cater to the unique needs of commercial clients has earned them a reputation for delivering high-quality and architecturally significant structures.

Pomerleau's involvement in the institutional sector includes the construction of schools, hospitals, and government buildings. Their contributions to the healthcare and education sectors have played a crucial role in enhancing community services and infrastructure.

In October 2024, Infrastructure Ontario (IO) and WAHA awarded a USD 1.8 billion contract to Pomerleau Health Partners to design, build and finance the Weeneebayko Area Health Authority (WAHA) redevelopment project.

Also, Pomerleau through the South Fraser Station Partners won the USD 928 million Surrey Langley SkyTrain Project's Stations Contract by the Province of British Columbia. 

Bird Construction

Bird Construction is a prominent Canadian construction company with a long-standing history in the industry. With a track record that spans over a century, Bird Construction has established itself as a reliable and trusted partner in the construction sector.

Throughout its existence, Bird Construction has undertaken a wide range of projects across different sectors. The company's portfolio includes building projects, such as commercial complexes, schools, hospitals, and residential developments. Their expertise in constructing various types of buildings showcases their versatility and ability to cater to diverse client needs.

In addition to building projects, Bird Construction has made significant contributions to civil infrastructure development. Their involvement in the construction of roads, bridges, tunnels, and other vital infrastructure highlights their role in enhancing and upgrading transportation networks in Canada.

Bird Construction has also been actively engaged in industrial projects, with a focus on power generation, refineries, and various industrial facilities. Their capabilities in executing these complex projects demonstrate their technical expertise and commitment to delivering high-quality solutions to industrial clients.

The company's involvement in the mining sector further exemplifies its adaptability and versatility. Bird Construction has participated in mining projects, including mine expansions, mills, and tailings facilities, contributing to the growth and advancement of the mining industry in Canada.

Bird Construction is set to acquire Jacob Bros for CAD 135 million to expand the company’s market share in infrastructure projects in Canada. 

On 13th August 2024, Bird Construction received five projects across Canada with a combined value of more than CAD 575 million (USD 418.61 million) across Canada.

Broccolini Construction

Broccolini Construction is a family-owned and operated construction company based in Montreal, Quebec. The company was founded in 1949 by Donato Broccolini and has since grown to become one of the largest construction companies in Canada. Broccolini Construction specializes in the construction of commercial, industrial, and residential buildings, and has a portfolio of over 1,000 projects.

Broccolini Construction is a well-positioned company for continued growth. The company has a strong track record of success, a talented workforce, and a commitment to innovation. Broccolini Construction is also well-positioned to benefit from the growing demand for construction in Canada.

Flynn Group of Companies

Flynn Group of Companies is a leading Canadian construction and building envelope solutions provider with a strong presence in the industry for over 40 years. Founded in 1978, the company has expanded its operations across Canada, the United States, and Ireland, making it a global player in the construction sector.

Specializing in roofing, cladding, and building envelope systems, Flynn Group has built a reputation for excellence and innovation in the industry. Their expertise encompasses a wide range of projects, including commercial, industrial, institutional, and residential developments.

The company's presence in multiple regions allows them to take on projects of varying scales and complexities. From iconic high-rise buildings and office towers to institutional facilities and industrial complexes, Flynn Group's diverse portfolio highlights its adaptability and ability to deliver on diverse client demands.

Looking ahead, Flynn Group's commitment to innovation and technology continues to be a driving force for the company. By embracing digital solutions, BIM, and advanced construction methods, they aim to stay at the forefront of industry advancements and deliver projects with enhanced efficiency and precision.

Some other notable EPC companies in Canada

• SNC-Lavalin

• Canadian Dredged

• IBI Group

• WSP Canada

• Hatch

• Stantec

• Dufferin construction

• Clark Builders

• Ellisdon Corporation

• Ledcor Industries Inc.

Construction Market in Canada: An Overview

The construction market in Canada displayed robust performance, reaching a substantial value of USD 355.9 billion in 2022. This indicates the industry's significant contribution to the country's economic landscape. Furthermore, the projected annual average growth rate of 1.2% from 2022 to 2027 suggests a positive outlook for the construction sector. The steady growth rate signifies the industry's resilience and its ability to adapt to changing economic conditions and market demands.

The residential construction sector stands out as the largest segment in the Canadian construction market, accounting for approximately 40% of the total construction activity. The high demand for housing, driven by population growth and urbanization trends, fuels the prominence of this sector. Residential construction encompasses a wide range of projects, including single-family homes, multi-family dwellings, and condominiums, catering to diverse housing needs across the country.

The commercial construction sector holds a substantial share in the Canadian construction market, comprising approximately 30% of the total construction activity. This sector responds to the needs of businesses and enterprises, leading to the construction of office buildings, retail centers, hotels, and other commercial spaces. The growth of this sector is closely linked to economic conditions, business expansions, and investment activities, making it a key indicator of the country's economic health.

The infrastructure construction sector plays a crucial role in Canada's development, accounting for about 20% of the total construction activity. This segment focuses on building and maintaining essential public facilities, such as roads, bridges, airports, railways, and utilities. Government investments in infrastructure projects are instrumental in driving growth in this sector, as they improve transportation and connectivity, promote economic development, and enhance the quality of life for Canadians.

The dominance of the residential and commercial construction sectors signifies the importance of catering to the housing and business needs of Canada's growing population and expanding economy. Builders and developers in these segments must align their strategies with market demand and demographic trends to ensure sustainable growth and profitability.

Meanwhile, the continued investment in infrastructure projects presents opportunities for construction companies specializing in large-scale public works. The emphasis on infrastructure development also calls for collaboration with governmental bodies and adherence to regulatory requirements to successfully execute projects.

The projected growth rate of 1.2% suggests an expansion for the Canadian construction industry. The sector's expansion will create opportunities for innovation and technology adoption. This may further drive efficiency improvements and cost optimization.

Conclusion

The Canadian construction industry is growing steadily with more government investments, technological advancements, and a focus on sustainability. This year marked certain setbacks due to labor shortages, construction cost overruns and economic fluctuations. The biggest construction companies in Canada including giants like PCL, EllisDon, Aecon, and Kiewit Canada, are leading the change in industry. The construction industry in Canada is well-positioned to thrive in upcoming years with economic development in Canada.

Why is this list of the largest Canadian EPC companies important?

This list is important for Building/Project Owners, Clients, Engineers, Subcontractors , Construction Project Managers, Building Material Suppliers, and Architects. A compiled list of the most reputable and reliable construction companies in Canada can allow you to identify the best relevant partners and address them directly for your next project.

If you want more information on the largest construction/EPC companies in the world, check out our publication here.

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