Canada’s Top 5 Commercial Construction Firms and the Projects They’re Leading in 2025
Canada’s top five commercial construction firms in 2025 are PCL, AtkinsRéalis, EllisDon, Graham Construction, and Aecon Group. Each firm is leading significant projects that are shaping Canada’s infrastructure and commercial development. Understanding their work helps reveal where the industry is heading and what opportunities are emerging.
This article highlights these five companies and the key projects and trends defining commercial construction in 2025. Let’s get started.
How Did We Select the Top 5 Construction Companies?
We selected the top 5 construction companies in Canada based on scale, revenue, team size, and overall industry impact. Our research examined projects across commercial buildings, civil infrastructure, and industrial works to evaluate each firm’s influence on the commercial construction sector.
Using the most recent data, from 2021 to the present, we identified companies not only leading today but also shaping the future of Canadian construction. We aim to provide actionable insights that help refine business strategies, enabling you to make informed decisions and stay competitive in a rapidly evolving market.
Offering both standard and custom access solutions, Access Doors Canada helps ensure your project runs smoothly from start to finish. Request a quote today to learn more.
Which Construction Companies Are Leading Canada’s Commercial Market in 2025?
As mentioned, the top five commercial construction companies in Canada leading progress in 2025 are PCL Construction, AtkinsRéalis, EllisDon, Graham Construction, and Aecon Group Inc. These firms are shaping the industry with large-scale projects, innovative solutions, and sustainable practices across commercial, civil, and industrial sectors.
1. PCL Construction
PCL Construction, based in Edmonton, Alberta, is Canada's leading employee-owned construction firm. The company employs approximately 4,500 skilled employees and manages projects valued at over $7 billion annually. It excels in commercial construction, civil infrastructure, and specialized projects, contributing to the development of iconic landmarks and essential infrastructure nationwide.
According to a LinkedIn post, PCL will highlight its Specialized Projects team's focus on addressing urgent client needs and large-scale water infrastructure projects. PCL's Industrial Services provide fast, reliable maintenance and upgrades, while leaders like Walter Schachtschneider champion innovation in AI, automation, and sustainable solar projects.
2. AtkinsRéalis
AtkinsRéalis (formerly SNC-Lavalin), based in Montreal, Quebec, is a leading provider of commercial construction and engineering services. The company employed approximately 31,000 people and generated $2.5 billion in revenue in the first quarter of 2025. It is recognized for managing complex infrastructure projects, with a specialization in transportation networks, energy facilities, and water management solutions.
AtkinsRéalis will prioritize sustainable infrastructure and innovative engineering moving forward. They aim to lead significant initiatives in transit systems, energy optimization, water management, and large-scale industrial projects for a more efficient future.
3. EllisDon
Headquartered in Mississauga, Ontario, EllisDon is a leading employee-owned construction firm in Canada, known for its innovative approaches. With over 4,000 professionals and generating over $5 billion annually, the company manages projects from concept to operation.
Specializing in commercial buildings, civil engineering, and heavy industry, EllisDon plays a vital role in urban redevelopment and infrastructure development. In 2025, they are focused on promoting sustainable practices and affordable housing, while pioneering innovative techniques such as modular construction and advanced technologies.
4. Graham Construction
Based in Calgary, Alberta, Graham Construction has been a leading presence in the Canadian construction industry since 1926. With over 2,700 professionals and annual revenues exceeding $4 billion, the company has evolved from railway station construction to delivering a diverse range of projects, including modern commercial buildings, industrial facilities, and major infrastructure.
Graham has been named to WaterCanada Magazine's Top 50 Canadian Water Projects for 2025, marking its second consecutive year of recognition. This year's list features standout projects showcasing Graham's expertise in water treatment, stormwater management, flood protection, and its commitment to sustainability.
5. Aecon Group Inc.
Aecon Group Inc., headquartered in Toronto, is a major player in Canada’s construction sector with a history of nearly 150 years. Employing around 12,000 professionals, the company generated $3.9 billion in revenue in 2021 and boasts a backlog of $9.7 billion as of early 2025.
Aecon currently leads transformative projects that showcase its expertise. Notable initiatives include the Annacis Water Supply Tunnel in British Columbia, providing a sustainable drinking water source through innovative deep shafts and tunnels.
In telecommunications, Aecon is enhancing Bell Canada's Gigabit Fibe Service, improving high-speed internet access across the region.
What Key Trends Are Reshaping Commercial Construction Today?
Trends like sustainability, digital transformation, modular construction, supply chain resilience, and workforce innovation are reshaping the commercial construction industry.
- Sustainable Building Practices: The demand for eco-friendly buildings is growing. Focusing on green certifications, energy efficiency, and sustainable materials can help reduce costs while meeting regulatory requirements.
- Digital Transformation: Construction is becoming increasingly digital, driven by tools like Building Information Modelling (BIM) and AI. Leveraging these technologies enhances collaboration, improves efficiency, and streamlines project management.
- Modular and Prefabricated Construction: Off-site construction is on the rise, accelerating project timelines and improving quality. Designing for modular solutions can boost efficiency and consistency across projects.
- Supply Chain Resilience: A strong and adaptable supply chain is essential. Diversifying suppliers, optimizing logistics, and prioritizing local sourcing and long-term vendor relationships help mitigate delays and risks.
- Workforce Innovation: Investing in skills development and technology ensures teams can adapt to labour changes. Automation and modern tools create a safer, more supportive environment while promoting collaboration.
To keep up with these trends and ensure your projects run smoothly, having the right access solutions is essential, as modern construction increasingly relies on efficiency, safety, and adaptability. High-quality access doors provide secure and convenient access to critical areas for maintenance, inspections, or equipment installation.
For projects with specific requirements, custom access doors are also available. Request a quote today to equip your projects with reliable and efficient solutions.
How Can These Insights Strengthen Competitiveness in Commercial Construction?
These insights help guide strategic planning, enhance project efficiency, and align operations with current industry best practices.
Understanding the priorities of leading firms—such as sustainability, technological integration, and modular efficiency—supports stronger project development, better decision-making, and improved operational structure.
Enhanced feasibility assessments, advanced design approaches, and reliable material selection all contribute to more resilient and competitive project outcomes. High-quality access solutions—such as access doors, roof hatches, and specialized panels—also play a role in achieving modern construction performance requirements.
By aligning with these industry directions, organizations can position themselves effectively within Canada’s evolving commercial construction environment.
FAQs on Access Doors in Modern Commercial Construction Projects
Canada’s top construction firms are advancing the commercial building landscape through large-scale developments, innovative technologies, and improved building standards. As these projects become more complex, the demand for reliable and efficient building components also increases. Access doors are one of the essential elements that support the functionality, safety, and long-term performance of modern structures.
Below are common questions that highlight key construction trends and show how access doors meet the requirements of today’s commercial, industrial, and infrastructure projects.
1. What role do access doors play in maintaining essential building systems?
Access doors provide safe and convenient access to mechanical, electrical, plumbing, and communication systems that require regular maintenance and servicing. They allow technicians to reach concealed components without damaging finished surfaces, supporting overall building reliability and upkeep.
2. How do fire-rated access doors support code compliance in commercial buildings?
Fire-rated access doors help maintain fire-resistant barriers that slow the movement of flames and heat. They are built to meet strict safety codes and are essential for protecting service areas in commercial structures.
3. What considerations determine the selection of access doors for specialized facilities?
Selection is based on the facility’s needs, environmental conditions, and safety requirements. Specialized settings such as hospitals, laboratories, data centers, and industrial plants often require airtight construction, secure locking systems, thermal protection, or corrosion-resistant materials.
4.. How do high-performance access doors contribute to long-term building efficiency?
High-performance access doors support long-term efficiency by reducing maintenance time, protecting sensitive systems, and helping maintain controlled interior conditions.
To Sum It Up
A clear understanding of Canada’s commercial construction landscape, including the companies leading major projects and the trends shaping modern building practices, can guide more informed planning and stronger project outcomes.
Contractors can use this knowledge to develop effective partnerships and refine bidding strategies. Developers can evaluate project feasibility with greater clarity, while architects and engineers can incorporate current industry expectations into efficient and competitive design solutions.
Access Doors Canada supports modern construction needs by providing durable, high-quality access doors and panels designed for reliable performance in commercial and industrial settings. Explore the full range of products or call +1-888-327-5471 for expert assistance tailored to your project requirements.
