Company lists · Data refreshed September 2026

Top 25 Critical facilities contractors based in Canada

Name: Critical facilities contractors based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 301 companies tracked

RevenueBase identified 301 critical facilities contractors headquartered in Canada as of September 2026 and tracks 71,749 professional contacts across them, including 32,563 with verified work emails. Calgary is the largest hub.

This list covers critical facilities contractors 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 16, 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 16, 2026 86% judged on-target in blind review

301Companies

71,749Contacts tracked

32,563Verified emails

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The 25 largest critical facilities contractors based in Canada

Ranked by team size

Top 25 of 301 critical facilities contractors based in Canada, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to critical facilities contractors: 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 16, 2026	10001+	22,733 contacts →
	Indirect evidence “We are a world-class engineering services and nuclear organization.” Source: RevenueBase Database · checked Sep 16, 2026
2	HATCH	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 16, 2026	5,001-10,000	10,272 contacts →
	Indirect evidence “Our organization is passionately committed to the pursuit of a better world through positive change.” Source: RevenueBase Database · checked Sep 16, 2026
3	Snc-Lavalin	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 16, 2026	10001+	9,992 contacts →
	Indirect evidence “SNC Lavalin is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 16, 2026
4	Ellisdon	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 16, 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 16, 2026
5	Black & Mcdonald Limited	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	5,001-10,000	2,677 contacts →
	Partial evidence “Black & McDonald is an integrated, multi-trade service provider that safely delivers high-quality construction, facilities management, and technical solutions.” Source: RevenueBase Database · checked Sep 16, 2026
6	ATCO	Indirect evidence	AB, CanadaHQ checked Sep 16, 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 16, 2026
7	Modern Niagara	Indirect evidence	Kanata, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,556 contacts →
	Indirect evidence “We build for life.” Source: RevenueBase Database · checked Sep 16, 2026
8	Flatirondragados	Indirect evidence	Usa, ON, CanadaHQ checked Sep 16, 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 16, 2026
9	Allnorth Consultants Limited	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 16, 2026	501-1,000	659 contacts →
	Indirect evidence “Allnorth is a multi-disciplinary engineering, project delivery, and construction services company.” Source: RevenueBase Database · checked Sep 16, 2026
10	Chandos Construction	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 16, 2026	501-1,000	643 contacts →
	Indirect evidence “Established in 1980, Chandos Construction is one of North America’s most collaborative and innovative national technical builders.” Source: RevenueBase Database · checked Sep 16, 2026
11	ISL	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 16, 2026	501-1,000	611 contacts →
	Indirect evidence “At ISL, we share an enthusiasm for community infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026
12	Tomlinson Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 16, 2026	501-1,000	475 contacts →
	Indirect evidence “Starting with a single-axle dump truck in 1952, R.W.” Source: RevenueBase Database · checked Sep 16, 2026
13	Chemco	Indirect evidence	Nisku, AB, CanadaHQ checked Sep 16, 2026	1,001-5,000	436 contacts →
	Indirect evidence “One Partner.” Source: RevenueBase Database · checked Sep 16, 2026
14	Maple Reinders	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 16, 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 16, 2026
15	Canem Systems LTD	Partial evidence	Richmond, BC, CanadaHQ checked Sep 16, 2026	501-1,000	384 contacts →
	Partial evidence “Canem Systems is a leading full-service electrical and mechanical contractor, offering comprehensive services across Canada.” Source: RevenueBase Database · checked Sep 16, 2026
16	Bouchier	Indirect evidence	Fort Mcmurray, AB, CanadaHQ checked Sep 16, 2026	501-1,000	374 contacts →
	Indirect evidence “Bouchier Canada’s leading Indigenous & integrated site services business, exceeding expectations relating to safety and service delivery, while inspiring and supporting our…” Source: RevenueBase Database · checked Sep 16, 2026
17	Sureway Construction Group LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 16, 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 16, 2026
18	Morgan Construction And Environmental LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 16, 2026	501-1,000	364 contacts →
	Indirect 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 16, 2026
19	Michels Canada	Partial evidence	Nisku, AB, CanadaHQ checked Sep 16, 2026	10001+	357 contacts →
	Partial evidence “Michels Canada is an established contractor, leading the industry with innovative methods in infrastructure, power and energy.” Source: RevenueBase Database · checked Sep 16, 2026
20	Thompson Construction Group	Indirect evidence	Spruce Grove, AB, CanadaHQ checked Sep 16, 2026	1,001-5,000	298 contacts →
	Indirect 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 16, 2026
21	FWS	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 16, 2026	501-1,000	284 contacts →
	Indirect evidence “With 70 years of experience, FWS provides integrated project development, design, construction, construction management, commissioning and maintenance services to several industry…” Source: RevenueBase Database · checked Sep 16, 2026
22	Lindsay Construction	Partial evidence	Dartmouth, NS, CanadaHQ checked Sep 16, 2026	201-500	265 contacts →
	Partial evidence “Lindsay Construction is a company of engineers, contractors, and managers active in both civil and building construction throughout the Atlantic Provinces.” Source: RevenueBase Database · checked Sep 16, 2026
23	Smith And Long	Indirect evidence	Markham, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	263 contacts →
	Indirect evidence “Over the past 10 years, Smith and Long has been in rapid growth mode, changing the status quo in our commoditized industry along the way.” Source: RevenueBase Database · checked Sep 16, 2026
24	Moreau	Indirect evidence	Rouyn-noranda, QC, CanadaHQ checked Sep 16, 2026	1,001-5,000	252 contacts →
	Indirect evidence “Moreau was founded in 1977 by Mr.” Source: RevenueBase Database · checked Sep 16, 2026
25	Tesc Contracting	Indirect evidence	Sudbury, ON, CanadaHQ checked Sep 16, 2026	201-500	206 contacts →
	Indirect evidence “ABOUT TESC brings a special combination of skill, grit, and proactivity.” Source: RevenueBase Database · checked Sep 16, 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: critical facilities contractors. 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 critical facilities contractors.
Partial evidence: Its own public description names part of critical facilities contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name critical facilities contractors. 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 301 critical facilities contractors based in Canada

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Critical facilities contractors based in Canada at a glance

As of Sep 16, 2026

45.4%Verified-email coverage

238.4Average contacts per company

11-50Median size (employees)

7.6%Largest-city concentration · Calgary

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

107

51-200

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 301 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 critical facilities contractors, 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 “critical facilities contractors”. 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 critical facilities contractors), 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 critical facilities contractors, 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, 32,563 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 16, 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.

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 critical facilities contractors, 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 critical facilities contractors are there based in Canada?

RevenueBase identified 301 critical facilities contractors 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 critical facilities contractors?

Calgary leads with 23 headquartered companies, followed by Toronto (23) and Edmonton (13).

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 32,563 verified decision-maker contacts tracked across these 301 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 16, 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.