Company lists · Data refreshed September 2026

Top 25 Heavy civil construction companies based in Canada

Name: Heavy civil construction companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 849 companies tracked

RevenueBase identified 849 heavy civil construction companies headquartered in Canada as of September 2026 and tracks 41,593 professional contacts across them, including 17,415 with verified work emails. Calgary is the largest hub.

This list covers heavy civil construction companies headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 15, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 15, 2026 86% judged on-target in blind review

849Companies

41,593Contacts tracked

17,415Verified emails

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The 25 largest heavy civil construction companies based in Canada

Ranked by team size

Top 25 of 849 heavy civil construction companies based in Canada, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to heavy civil construction companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Aecon Group INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 15, 2026	10001+	5,565 contacts →
	Partial evidence “Aecon Group Inc.(TSX: ARE) is a North American construction and infrastructure development company with global experience.” Source: RevenueBase Database · checked Sep 15, 2026
2	Ellisdon	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 15, 2026	5,001-10,000	4,948 contacts →
	Partial evidence “EllisDon is a leading construction and building services company that delivers complex, high-performance projects across Canada and internationally.” Source: RevenueBase Database · checked Sep 15, 2026
3	Pomerleau	Partial evidence	Montréal, QC, CanadaHQ checked Sep 15, 2026	1,001-5,000	2,975 contacts →
	Partial evidence “Pomerleau, whose revenues exceeded $4.8 billion in 2023, is one of the largest construction companies in Canada.” Source: RevenueBase Database · checked Sep 15, 2026
4	Flatirondragados	Indirect evidence	Usa, ON, CanadaHQ checked Sep 15, 2026	5,001-10,000	1,364 contacts →
	Indirect evidence “Built on a foundation of excellence, FlatironDragados operates in the United States and Canada through FlatironDragados USA and FlatironDragados Canada.” Source: RevenueBase Database · checked Sep 15, 2026
5	RJC Engineers	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 15, 2026	501-1,000	745 contacts →
	Indirect evidence “We are on a mission to futureproof North America.” Source: RevenueBase Database · checked Sep 15, 2026
6	Norda Stelo	Indirect evidence	Quebec, QC, CanadaHQ checked Sep 15, 2026	501-1,000	677 contacts →
	Indirect evidence “Founded in 1963, Norda Stelo is one of Canada's leading engineering firms, with operations in some 50 countries.” Source: RevenueBase Database · checked Sep 15, 2026
7	ISL	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 15, 2026	501-1,000	611 contacts →
	Indirect evidence “At ISL, we share an enthusiasm for community infrastructure.” Source: RevenueBase Database · checked Sep 15, 2026
8	Magil Construction	Strong evidence	Montreal, QC, CanadaHQ checked Sep 15, 2026	201-500	575 contacts →
	Strong evidence “Magil Construction is a private company performing services under four divisions - Buildings, Civil, Industrial and Interiors.” Source: RevenueBase Database · checked Sep 15, 2026
9	Tomlinson Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 15, 2026	501-1,000	475 contacts →
	Indirect evidence “Starting with a single-axle dump truck in 1952, R.W.” Source: RevenueBase Database · checked Sep 15, 2026
10	Eurovia Québec	Partial evidence	Brossard, QC, CanadaHQ checked Sep 15, 2026	1,001-5,000	377 contacts →
	Partial evidence “Eurovia Québec, filiale de VINCI Construction, est l’un des principaux acteurs de la construction d’infrastructures de transport et d’aménagements urbains.” Source: RevenueBase Database · checked Sep 15, 2026
11	LEA Group	Partial evidence	Markham, ON, CanadaHQ checked Sep 15, 2026	201-500	370 contacts →
	Partial evidence “LEA Group (LEA) is a privately-held, global consulting firm providing planning, engineering design, and construction administration services for urban infrastructure projects.” Source: RevenueBase Database · checked Sep 15, 2026
12	Sureway Construction Group LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 15, 2026	501-1,000	365 contacts →
	Indirect evidence “As one of Alberta’s largest corporations as ranked (#110) in the most recent issue of Alberta Venture Magazine, we bring over 40 years of Alberta experience, diversity, financial…” Source: RevenueBase Database · checked Sep 15, 2026
13	Morgan Construction And Environmental LTD	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 15, 2026	501-1,000	364 contacts →
	Strong evidence “Morgan Construction and Environmental Ltd."Delivering Project Excellence"- is a civil construction and environmental projects company headquartered in Edmonton, Alberta.” Source: RevenueBase Database · checked Sep 15, 2026
14	Michels Canada	Indirect evidence	Nisku, AB, CanadaHQ checked Sep 15, 2026	10001+	357 contacts →
	Indirect evidence “Michels Canada is an established contractor, leading the industry with innovative methods in infrastructure, power and energy.” Source: RevenueBase Database · checked Sep 15, 2026
15	Site Resource Group	Partial evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	501-1,000	338 contacts →
	Partial evidence “From conception to completion, SITE Resource Group (SITE) has the capability to provide comprehensive services for the successful construction, maintenance and reclamation of our…” Source: RevenueBase Database · checked Sep 15, 2026
16	RAM	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 15, 2026	201-500	329 contacts →
	Indirect evidence “RAM Consulting (RAM) is a full-service project delivery firm founded in 2007 with offices in Western Canada.” Source: RevenueBase Database · checked Sep 15, 2026
17	Sigfusson Northern LTD	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 15, 2026	501-1,000	309 contacts →
	Indirect evidence “Sigfusson Northern is a dynamic, multi-faceted contractor with a history of taking on challenging projects in some of Canada’s toughest terrain.” Source: RevenueBase Database · checked Sep 15, 2026
18	Thompson Construction Group	Strong evidence	Spruce Grove, AB, CanadaHQ checked Sep 15, 2026	1,001-5,000	298 contacts →
	Strong evidence “Thompson Construction Group is a leading Alberta-based construction firm specializing in heavy civil earthworks, underground utilities, vertical construction, and industrial…” Source: RevenueBase Database · checked Sep 15, 2026
19	Nuna Group Of Companies	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 15, 2026	501-1,000	289 contacts →
	Strong evidence “Nuna Group of Companies is a heavy civil construction, earthworks and contract mining company with offices in Edmonton, AB; Cambridge Bay, NU; Yellowknife, NT; Thunder Bay, ON…” Source: RevenueBase Database · checked Sep 15, 2026
20	Binnie	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 15, 2026	201-500	287 contacts →
	Partial evidence “We began as a civil engineering firm in 1969, but have grown into much more.” Source: RevenueBase Database · checked Sep 15, 2026
21	Kenaidan Contracting LTD	Indirect evidence	Mississauga & Richmond, CanadaHQ checked Sep 15, 2026	201-500	247 contacts →
	Indirect evidence “Since 1974, Kenaidan has built their company on the cornerstone of customer satisfaction, repeat business, and endorsements.” Source: RevenueBase Database · checked Sep 15, 2026
22	Volker Stevin	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	1,001-5,000	243 contacts →
	Indirect evidence “Since 1978, Volker Stevin has been dedicated to enhancing communities and connecting people with progress.” Source: RevenueBase Database · checked Sep 15, 2026
23	Carmacks Enterprises	Strong evidence	Nisku, AB, CanadaHQ checked Sep 15, 2026	201-500	222 contacts →
	Strong evidence “Since 1974, the Carmacks organization has grown from a small municipal road contractor to a multi-faceted general civil construction service and highway maintenance organization…” Source: RevenueBase Database · checked Sep 15, 2026
24	Clearway Group Of Companies	Indirect evidence	Maple, ON, CanadaHQ checked Sep 15, 2026	201-500	192 contacts →
	Indirect evidence “At Clearway, we are committed to excellence in every project we undertake.” Source: RevenueBase Database · checked Sep 15, 2026
25	Whissell Contracting LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	201-500	189 contacts →
	Indirect evidence “Whissell was founded in Calgary in 1970 as a water and sewer contractor.” Source: RevenueBase Database · checked Sep 15, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: heavy civil construction companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names heavy civil construction companies.
Partial evidence: Its own public description names part of heavy civil construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name heavy civil construction companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 849 heavy civil construction companies based in Canada

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Heavy civil construction companies based in Canada at a glance

As of Sep 15, 2026

41.9%Verified-email coverage

49.0Average contacts per company

11-50Median size (employees)

3.9%Largest-city concentration · Calgary

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

210

11-50

285

51-200

230

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 849 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among heavy civil construction companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “heavy civil construction companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names heavy civil construction companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among heavy civil construction companies, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 17,415 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 15, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Heavy civil construction companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names heavy civil construction companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many heavy civil construction companies are there based in Canada?

RevenueBase identified 849 heavy civil construction companies headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Aecon Group INC, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most heavy civil construction companies?

Calgary leads with 33 headquartered companies, followed by Edmonton (32) and Montreal (29).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 17,415 verified decision-maker contacts tracked across these 849 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 15, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.