Company lists · Data refreshed September 2026

Top 25 Preconstruction services companies based in Canada

Name: Preconstruction services companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,643 companies tracked

RevenueBase identified 1,643 company matches for preconstruction services companies associated with Canada as of September 2026 and tracks 18,189 professional contacts across them, including 6,989 with verified work emails. Toronto is the largest hub.

This list covers company matches for preconstruction services companies associated with Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

1,643Companies

18,189Contacts tracked

6,989Verified emails

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The 25 largest preconstruction services companies based in Canada

Ranked by team size

Top 25 of 1,643 company matches for preconstruction services companies based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Magil Construction	Exact match	Montreal, QC, CanadaHQ recorded Sep 17, 2026	201-500	575 contacts →
	Exact match “Magil Construction is a private company performing services under four divisions - Buildings, Civil, Industrial and Interiors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Tomlinson Group Of Companies	Exact match	Ottawa, ON, CanadaHQ recorded Sep 17, 2026	501-1,000	475 contacts →
	Exact match “Starting with a single-axle dump truck in 1952, R.W.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Chemco	Exact match	Nisku, AB, CanadaHQ recorded Sep 17, 2026	1,001-5,000	436 contacts →
	Exact match “One Partner.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Maple Reinders	Exact match	Mississauga, ON, CanadaHQ recorded Sep 17, 2026	201-500	401 contacts →
	Exact match “Maple Reinders is a full-service construction services provider that specializes in ICI building (industrial, commercial and institutional); and civil/environmental construction…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Sureway Construction Group LTD	Exact match	Edmonton, AB, CanadaHQ recorded Sep 17, 2026	501-1,000	365 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Lindsay Construction	Exact match	Dartmouth, NS, CanadaHQ recorded Sep 17, 2026	201-500	265 contacts →
	Exact match “Lindsay Construction is a company of engineers, contractors, and managers active in both civil and building construction throughout the Atlantic Provinces.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Tesc Contracting	Exact match	Sudbury, ON, CanadaHQ recorded Sep 17, 2026	201-500	206 contacts →
	Exact match “ABOUT TESC brings a special combination of skill, grit, and proactivity.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Scott Builders INC	Exact match	Red Deer, AB, CanadaHQ recorded Sep 17, 2026	201-500	161 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Kidco Construction LTD	Exact match	Calgary, AB, CanadaHQ recorded Sep 17, 2026	201-500	157 contacts →
	Exact match “For almost 40 years, we’ve been a proud extension of our client’s team.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	TBC Constructions	Exact match	Québec, QC, CanadaHQ recorded Sep 17, 2026	201-500	152 contacts →
	Exact match “Founded in Québec City in 1984, TBC has more than 500 employees specialized in electromechanics for buildings.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Scott Construction Group	Exact match	Burnaby, BC, CanadaHQ recorded Sep 17, 2026	51-200	147 contacts →
	Exact match “We’re Scott Construction – a people-first construction partner built to think differently.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Matheson Constructors	Exact match	Aurora, ON, CanadaHQ recorded Sep 17, 2026	51-200	144 contacts →
	Exact match “Matheson Constructors and affiliated companies are active in the building and infrastructure construction markets primarily in Ontario with selected projects across Canada.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	HB Construction Company LTD	Exact match	Edmonton, AB, CanadaHQ recorded Sep 17, 2026	1,001-5,000	129 contacts →
	Exact match “The mission of HB Construction Company Ltd.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Avondale Construction LTD	Exact match	Halifax, NS, CanadaHQ recorded Sep 17, 2026	51-200	120 contacts →
	Exact match “For more than thirty years, Avondale has been firmly established as one of the most reputable and reliable general contractors in Atlantic Canada, with offices in Halifax, Moncton…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Marant Construction	Exact match	Toronto, ON, CanadaHQ recorded Sep 17, 2026	51-200	118 contacts →
	Exact match “MARANT Construction Limited offers full construction management and general contracting services across the Greater Toronto Area (GTA), Ottawa, and Kitchener-Waterloo.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Kindred Construction LTD	Exact match	Vancouver, BC, CanadaHQ recorded Sep 17, 2026	51-200	114 contacts →
	Exact match “Our team of professionals remains client-focused to deliver an outstanding finished product, never losing sight of the project objectives and always striving to exceed…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Keller Construction LTD	Exact match	Edmonton, AB, CanadaHQ recorded Sep 17, 2026	51-200	113 contacts →
	Exact match “For nearly 60 years, Keller Construction Ltd.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Zgemi INC	Exact match	Brampton, ON, CanadaHQ recorded Sep 17, 2026	201-500	110 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Gillam	Exact match	Toronto, ON, CanadaHQ recorded Sep 17, 2026	51-200	104 contacts →
	Exact match “Gillam is a progressive construction management company established with a view to raising the bar in the planning, management and delivery of construction projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	JCB Construction Canada	Exact match	Brossard, QC, CanadaHQ recorded Sep 17, 2026	51-200	104 contacts →
	Exact match “Specializing in the management and execution of major private construction projects, we carry out dozens of expansions, renovations, redevelopments, and new construction projects…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	GPH	Exact match	Longueuil, QC, CanadaHQ recorded Sep 17, 2026	11-50	103 contacts →
	Exact match “Votre Partenaire en gestion de projets Depuis 20 ans, GPH propose à ses clients l’ensemble des services reliés à la gestion de projet et à la gérance de construction, de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	MG Construction	Exact match	Longueuil, QC, CanadaHQ recorded Sep 17, 2026	501-1,000	99 contacts →
	Exact match “MG Construction's mission is to provide top quality work, within a productive schedule, and with competitve market prices!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	IDL Projects INC	Exact match	Prince George, BC, CanadaHQ recorded Sep 17, 2026	501-1,000	96 contacts →
	Exact match “IDL Projects Inc.(IDL) is a dynamic, rapidly expanding company focused on providing a broad array of construction services in Canada and internationally.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	LES Entreprises QMD INC	Exact match	Montreal, QC, CanadaHQ recorded Sep 17, 2026	51-200	94 contacts →
	Exact match “Les Entreprises QMD est une firme de construction qui réalise des projets privés et publics, dans les secteurs commercial, institutionnel et industriel.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Dewar Industrial Services INC	Exact match	Oshawa, ON, CanadaHQ recorded Sep 17, 2026	201-500	93 contacts →
	Exact match “The Dewar brand has been built on trust and performance since 1957, providing construction & maintenance services to power generation, institutional, commercial and industrial…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “preconstruction services companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,643 preconstruction services companies based in Canada

See the full list, filter by size, metro and specialty, and access 6,989 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Preconstruction services companies based in Canada at a glance

As of Sep 17, 2026

38.4%Verified-email coverage

11.1Average contacts per company

11-50Median size (employees)

9.0%Largest-city concentration · Toronto

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

755

11-50

628

51-200

198

201-500

501-1,000

1,001-5,000

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 1,643 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Canada whose business descriptions match “preconstruction services companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,989 professional contacts with verified work emails across the full matched dataset. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Preconstruction services companies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “preconstruction services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many preconstruction services companies are there based in Canada?

RevenueBase identified 1,643 company matches for preconstruction services companies associated with Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Magil Construction tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most preconstruction services companies?

Toronto leads with 148 company records, followed by Montreal (90) and Calgary (75).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,989 professional contacts with verified work emails tracked across these 1,643 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 SmartSearch, 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.