Company lists · Data refreshed September 2026

Top 25 Infrastructure companies based in Canada

Name: Infrastructure 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 881 companies tracked

RevenueBase identified 881 infrastructure companies headquartered in Canada as of September 2026 and tracks 90,960 professional contacts across them, including 43,004 with verified work emails. Calgary is the largest hub.

This list covers infrastructure 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

881Companies

90,960Contacts tracked

43,004Verified emails

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The 25 largest infrastructure companies based in Canada

Ranked by team size

Top 25 of 881 infrastructure 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 infrastructure 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	Atkinsréalis	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 15, 2026	10001+	22,733 contacts →
	Indirect evidence “We are a world-class engineering services and nuclear organization.” Source: RevenueBase Database · checked Sep 15, 2026
2	Ledcor	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 15, 2026	5,001-10,000	6,184 contacts →
	Strong evidence “The Ledcor Group of Companies is one of North America’s most diversified construction companies, serving the building, heavy industrial, civil and Infrastructure, mining…” Source: RevenueBase Database · checked Sep 15, 2026
3	Aecon Group INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 15, 2026	10001+	5,565 contacts →
	Strong 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
4	Ellisdon	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 15, 2026	5,001-10,000	4,948 contacts →
	Indirect 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
5	Enerflex LTD	Strong evidence	Calgary, CanadaHQ checked Sep 15, 2026	1,001-5,000	3,207 contacts →
	Strong evidence “Enerflex is a premier integrated global provider of energy infrastructure and energy transition solutions, deploying natural gas, low-carbon, and treated water solutions – from…” Source: RevenueBase Database · checked Sep 15, 2026
6	EPCOR	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 15, 2026	1,001-5,000	2,511 contacts →
	Indirect evidence “Clean water, reliable electricity, drainage services and natural gas are at the heart of what we do.” Source: RevenueBase Database · checked Sep 15, 2026
7	Bird Construction	Strong evidence	Mississauga, ON, CanadaHQ checked Sep 15, 2026	5,001-10,000	2,385 contacts →
	Strong evidence “Bird is a Canadian construction and maintenance company providing a comprehensive scope offering and a diversified portfolio of services to industrial, infrastructure and…” Source: RevenueBase Database · checked Sep 15, 2026
8	ATCO	Indirect evidence	AB, CanadaHQ checked Sep 15, 2026	5,001-10,000	2,335 contacts →
	Indirect evidence “ATCO is a global leader in housing, energy and defence, delivering the essential services people and communities depend on every day.” Source: RevenueBase Database · checked Sep 15, 2026
9	Badger Infrastructure Solutions	Indirect evidence	CanadaHQ checked Sep 15, 2026	1,001-5,000	1,441 contacts →
	Indirect evidence “Badger is the largest provider of non-destructive excavating and related services in North America.” Source: RevenueBase Database · checked Sep 15, 2026
10	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
11	Green Infrastructure Partners	Indirect evidence	Markham, ON, CanadaHQ checked Sep 15, 2026	1,001-5,000	1,246 contacts →
	Indirect evidence “Our work makes the world work.” Source: RevenueBase Database · checked Sep 15, 2026
12	Valard Construction	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 15, 2026	1,001-5,000	1,112 contacts →
	Indirect evidence “Headquartered in Edmonton, Alberta - Valard is Canada’s premier utility contractor, with full-service capabilities for transmission, distribution, substations, foundations…” Source: RevenueBase Database · checked Sep 15, 2026
13	Inter Pipeline	Strong evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	501-1,000	1,067 contacts →
	Strong evidence “We are a major energy infrastructure business that has experienced tremendous growth over the past decade.” Source: RevenueBase Database · checked Sep 15, 2026
14	Altagas LTD	Strong evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	1,001-5,000	933 contacts →
	Strong evidence “We are a leading North American infrastructure company connecting customers and markets to affordable and reliable sources of energy.” Source: RevenueBase Database · checked Sep 15, 2026
15	Gibson Energy	Strong evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	501-1,000	719 contacts →
	Strong evidence “Gibson is a leading liquids infrastructure company with its principal businesses consisting of the storage, optimization, processing, and gathering of liquids and refined…” Source: RevenueBase Database · checked Sep 15, 2026
16	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
17	ISL	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 15, 2026	501-1,000	611 contacts →
	Strong evidence “At ISL, we share an enthusiasm for community infrastructure.” Source: RevenueBase Database · checked Sep 15, 2026
18	Dexterra Group	Strong evidence	Mississauga, ON, CanadaHQ checked Sep 15, 2026	5,001-10,000	551 contacts →
	Strong evidence “Dexterra Group is a publicly listed corporation (TSX:DXT) delivering a range of support services for the creation, management, and operation of infrastructure across Canada.” Source: RevenueBase Database · checked Sep 15, 2026
19	Northland Power INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 15, 2026	501-1,000	521 contacts →
	Indirect evidence “Northland Power is a Canadian-owned global power producer dedicated to accelerating the global energy transition.” Source: RevenueBase Database · checked Sep 15, 2026
20	Surerus Murphy Joint Venture	Strong evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	501-1,000	498 contacts →
	Strong evidence “Surerus Murphy Joint Venture (SMJV) brings together two leading infrastructure companies, Surerus Pipeline Inc.” Source: RevenueBase Database · checked Sep 15, 2026
21	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
22	Armtec	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 15, 2026	1,001-5,000	475 contacts →
	Indirect evidence “Armtec has spent over 110 years supplying the most innovative drainage equipment, dynamically designed to support roadways, stormwater, rehabilitation, and erosion control.” Source: RevenueBase Database · checked Sep 15, 2026
23	Maple Reinders	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 15, 2026	201-500	401 contacts →
	Indirect evidence “Maple Reinders is a full-service construction services provider that specializes in ICI building (industrial, commercial and institutional); and civil/environmental construction…” Source: RevenueBase Database · checked Sep 15, 2026
24	Eurovia Québec	Strong evidence	Brossard, QC, CanadaHQ checked Sep 15, 2026	1,001-5,000	377 contacts →
	Strong 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
25	LEA Group	Strong evidence	Markham, ON, CanadaHQ checked Sep 15, 2026	201-500	370 contacts →
	Strong 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

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: infrastructure 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 infrastructure companies.
Partial evidence: Its own public description names part of infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure 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 881 infrastructure companies based in Canada

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Infrastructure companies based in Canada at a glance

As of Sep 15, 2026

47.3%Verified-email coverage

103.2Average contacts per company

11-50Median size (employees)

9.2%Largest-city concentration · Calgary

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

213

11-50

291

51-200

198

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 881 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 infrastructure 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 “infrastructure 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 infrastructure 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 infrastructure 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, 43,004 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.

Infrastructure 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 infrastructure 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 infrastructure companies are there based in Canada?

RevenueBase identified 881 infrastructure 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?

Atkinsréalis, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most infrastructure companies?

Calgary leads with 81 headquartered companies, followed by Toronto (57) and Edmonton (43).

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 43,004 verified decision-maker contacts tracked across these 881 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.