Top Contractors

Introducing the 2025 Top Contractors in Canada

On-Site’s Top Contractors report is dedicated to determining the leading Canadian construction general contractors, ranked by revenue. It is an invaluable tool based on direct research of the companies involved and is used throughout the industry to research and source leading contractors.

Forty (40) companies make the Top Contractors list; an additional five (5) earn recognition as the biggest with under 50 employees; and all participating general contractors receive a company listing identifying their scope of work to help owners and developers looking for general contractors with the proper expertise to take on their next big project.

In addition to the digital edition accessible below, a print version of the 2025 Top Contractors Report will mail in June.

Want to be on the list next year? Subscribe to our newsletter and then watch for messages advising when the survey portal will open for the 2026 edition of On-Site Magazine’s Top Contractors in Canada.

Canada’s Top Contractors – June 2025

Coming off a period of high inflation, followed by a half-year of tariff uncertainty, it will surprise few that 2024 and 2025 are presenting a mix of financial results and expectations amongst Canada’s leading construction firms. While not all companies experienced revenue growth last year, many did – some even hitting historic highs.

Among those who saw their revenues retreat, major projects either wrapping up or getting closer to completion were often cited as reasons.

Overall, On-Site’s survey of readers suggests that Canada’s construction sector continued to climb in 2024. Looking at the Top 10 from our list of the 40 largest companies, by revenue, their cumulative reporting was almost a billion dollars higher than in 2023. That’s very good news.

While 2025 forecasting has a significant number of companies tempering their expectations, results in next year’s list may be tied to which segment, or segments, a company serves. Publicly funded projects appear to be showing stability and growth, and the term cautious optimism is percolating within the sector.

Once again, the team at On-Site would like to thank all of the companies that took the time to participate in our annual survey. Your valuable contributions make this research possible and allow us to share trends and insights with our industry.