Company lists · Data refreshed September 2026

Top 25 Site work contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 480 companies tracked

RevenueBase identified 480 site work contractors headquartered in Canada as of September 2026 and tracks 5,680 professional contacts across them, including 1,807 with verified work emails. Edmonton is the largest hub.

This list covers site work 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 18, 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 18, 2026 86% judged on-target in blind review

480Companies

5,680Contacts tracked

1,807Verified emails

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The 25 largest site work contractors based in Canada

Ranked by team size

Top 25 of 480 site work contractors based in Canada, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to site work 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	Tomlinson Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 18, 2026	501-1,000	475 contacts →
	Indirect evidence “Starting with a single-axle dump truck in 1952, R.W.” Source: RevenueBase Database · checked Sep 18, 2026
2	Bouchier	Partial evidence	Fort Mcmurray, AB, CanadaHQ checked Sep 18, 2026	501-1,000	374 contacts →
	Partial 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 18, 2026
3	Sureway Construction Group LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 18, 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 18, 2026
4	Thompson Construction Group	Indirect evidence	Spruce Grove, AB, CanadaHQ checked Sep 18, 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 18, 2026
5	HALL	Indirect evidence	Langley, BC, CanadaHQ checked Sep 18, 2026	201-500	228 contacts →
	Indirect evidence “Together in construction” Source: RevenueBase Database · checked Sep 18, 2026
6	Kidco Construction LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 18, 2026	201-500	157 contacts →
	Indirect evidence “For almost 40 years, we’ve been a proud extension of our client’s team.” Source: RevenueBase Database · checked Sep 18, 2026
7	Fowler Construction Company Limited	Indirect evidence	Bracebridge, ON, CanadaHQ checked Sep 18, 2026	501-1,000	139 contacts →
	Indirect evidence “Trusted name since 1949 • IAMFowler · Infrastructure, Aggregates & Asphalt and Maintenance · FOWLER Construction is one of Ontario's leading road-building, aggregate-producing and…” Source: RevenueBase Database · checked Sep 18, 2026
8	Loiselle INC	Indirect evidence	Salaberry-de-valleyfield, QC, CanadaHQ checked Sep 18, 2026	201-500	127 contacts →
	Indirect evidence “Entrepreneur général en travaux de génie civil, excavation, environnement, ouvrages d'art, déneigement et entretien et exploitation de réseaux routiers Certifié ISO 9001:2015…” Source: RevenueBase Database · checked Sep 18, 2026
9	Kichton Contracting LTD	Indirect evidence	Acheson, AB, CanadaHQ checked Sep 18, 2026	201-500	120 contacts →
	Indirect evidence “Kichton Contracting Ltd (KCL) has been in business since 1963 and is based out of Edmonton, Alberta, Canada.” Source: RevenueBase Database · checked Sep 18, 2026
10	ASL	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 18, 2026	51-200	107 contacts →
	Indirect evidence “Established in 1975 Agrodrain Systems Limited (ASL) began with the purchase of a bulldozer that we customized to create a specialized tile drainage plow.” Source: RevenueBase Database · checked Sep 18, 2026
11	North Star Contracting INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 18, 2026	201-500	89 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
12	Gateman Milloy INC	Indirect evidence	Kitchener, ON, CanadaHQ checked Sep 18, 2026	51-200	80 contacts →
	Indirect evidence “Gateman-Milloy Inc.” Source: RevenueBase Database · checked Sep 18, 2026
13	Rafat General Contractor INC	Partial evidence	Bolton, ON, CanadaHQ checked Sep 18, 2026	501-1,000	60 contacts →
	Partial evidence “Rafat General Contractor Inc, established in 1988, is a full-service civil construction and infrastructure company delivering comprehensive solutions across Ontario.” Source: RevenueBase Database · checked Sep 18, 2026
14	Rutherford Contracting LTD	Indirect evidence	Aurora, ON, CanadaHQ checked Sep 18, 2026	51-200	57 contacts →
	Indirect evidence “Founded in 1971 as Rutherford Contracting Services, our organization was established by Dick Rutherford as a small civil, renovation, and maintenance contracting company.” Source: RevenueBase Database · checked Sep 18, 2026
15	Conwest Contracting	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 18, 2026	51-200	52 contacts →
	Indirect evidence “In 1985, after years of working in residential utilities contracting for their father, the Marinelli siblings founded Conwest Contracting to build further on their family…” Source: RevenueBase Database · checked Sep 18, 2026
16	Mainland Group Of Companies	Partial evidence	Surrey, BC, CanadaHQ checked Sep 18, 2026	201-500	52 contacts →
	Partial evidence “The Mainland Group of Companies is a multi-disciplinary construction service provider with expertise in civil works, excavation, shoring, and the oil & gas sector.” Source: RevenueBase Database · checked Sep 18, 2026
17	Allan Construction	Indirect evidence	Saskatoon, SK, CanadaHQ checked Sep 18, 2026	51-200	51 contacts →
	Indirect evidence “Locally owned and operated General Contracting firm, specializing in all aspects of Civil, industrial and Commercial projects.” Source: RevenueBase Database · checked Sep 18, 2026
18	UCC Group INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 18, 2026	201-500	46 contacts →
	Indirect evidence “UCC Group is a North America wide provider of integrated specialty sitework construction services.” Source: RevenueBase Database · checked Sep 18, 2026
19	Metro Infrastructure	Partial evidence	Brampton, ON, CanadaHQ checked Sep 18, 2026	51-200	45 contacts →
	Partial evidence “With over 25 years experience, Metro Infrastructure works to provide construction services across Toronto, Peel and Halton regions for construction companies, public works…” Source: RevenueBase Database · checked Sep 18, 2026
20	Matcon Civil Constructors INC	Partial evidence	Langley, BC, CanadaHQ checked Sep 18, 2026	201-500	43 contacts →
	Partial evidence “Matcon Civil are industry leaders in site preparation, land remediation, habitat construction, heavy road construction and underground utility installations.” Source: RevenueBase Database · checked Sep 18, 2026
21	Southwest Contracting LTD	Partial evidence	Surrey, BC, CanadaHQ checked Sep 18, 2026	51-200	42 contacts →
	Partial evidence “Southwest Contracting Ltd is a full service excavation, shoring and civil contractor specializing in shotcrete and other shoring methods, special grouting techniques, jet…” Source: RevenueBase Database · checked Sep 18, 2026
22	MGI Construction Corp	Partial evidence	Toronto, ON, CanadaHQ checked Sep 18, 2026	51-200	40 contacts →
	Partial evidence “When it comes to choosing a contractor or sub-contractor, experience counts.” Source: RevenueBase Database · checked Sep 18, 2026
23	Waiward Construction Management INC	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 18, 2026	51-200	40 contacts →
	Indirect evidence “Waiward Construction Managment Inc.” Source: RevenueBase Database · checked Sep 18, 2026
24	Excavation St-Pierre & Tremblay	Indirect evidence	Cowansville, QC, CanadaHQ checked Sep 18, 2026	51-200	32 contacts →
	Indirect evidence “Référence dans le domaine du génie civil depuis plus de 25 ans dans la région de l'Estrie et de la Montérégie, Excavation St-Pierre & Tremblay a fait sa renommée avec ses services…” Source: RevenueBase Database · checked Sep 18, 2026
25	Weinrich Contracting LTD	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 18, 2026	51-200	31 contacts →
	Partial evidence “WCL is where quality work meets quality people.” Source: RevenueBase Database · checked Sep 18, 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: site work 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 site work contractors.
Partial evidence: Its own public description names part of site work contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name site work 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 480 site work contractors based in Canada

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Site work contractors based in Canada at a glance

As of Sep 18, 2026

31.8%Verified-email coverage

11.8Average contacts per company

11-50Median size (employees)

4.0%Largest-city concentration · Edmonton

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

169

11-50

194

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 480 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 site work 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 “site work 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 site work 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 site work 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, 1,807 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 18, 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 site work 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 site work contractors are there based in Canada?

RevenueBase identified 480 site work 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?

Tomlinson Group Of Companies, headquartered in Ottawa, tops this list with the largest team on record.

Which city has the most site work contractors?

Edmonton leads with 19 headquartered companies, followed by Calgary (17) and Ottawa (16).

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 1,807 verified decision-maker contacts tracked across these 480 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 18, 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.