Company lists · Data refreshed September 2026

Top 25 Heavy construction accounting firms based in Canada

RevenueBase identified 115 heavy construction accounting firms headquartered in Canada as of September 2026 and tracks 697 professional contacts across them, including 197 with verified work emails. Calgary is the largest hub.

This list covers heavy construction accounting firms 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 28, 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 28, 2026 86% judged on-target in blind review
115Companies
697Contacts tracked
197Verified emails
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The 25 largest heavy construction accounting firms based in Canada

Ranked by team size
Top 25 of 115 heavy construction accounting firms based in Canada, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to heavy construction accounting firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWinnipeg, MB, CanadaHQ checked Sep 28, 2026201-50043 contacts →

Partial evidence

“Nelson River Construction was formed in Winnipeg during the First World War, in the 1950’s moved to 101 Dawson Road, in Winnipeg MB which is still site for our Repair and…”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceVaughan, ON, CanadaHQ checked Sep 28, 202611-5033 contacts →

Partial evidence

“I&A is not your standard accounting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceThunder Bay, ON, CanadaHQ checked Sep 28, 202651-20026 contacts →

Partial evidence

“Tom Jones Corporation is a full-service construction company with a reputation for excellence in the public and private sectors.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceKelowna, BC, CanadaHQ checked Sep 28, 202651-20024 contacts →

Indirect evidence

“Sawchuk Developments was established in 1981.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidencePort Hood, NS, CanadaHQ checked Sep 28, 202651-20023 contacts →

Indirect evidence

“Zutphen Contractors is a company based out of 10442 Nova Scotia Trunk 19, Port Hood, Nova Scotia, Canada.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSurrey, BC, CanadaHQ checked Sep 28, 202611-5020 contacts →

Indirect evidence

“For nearly sixty years, Concost Consultants Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceWestmount, QC, CanadaHQ checked Sep 28, 202611-5020 contacts →

Partial evidence

“LCO is a firm which specializes in Construction Cost Management providing Fair Market Value Estimating and Project Controls services to support the Client in achieving the…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceLaval, QC, CanadaHQ checked Sep 28, 202611-5018 contacts →

Partial evidence

“Guidés par les meilleures normes de qualité et d’efficacité, Quadrax & Associés se sont taillés une place de choix dans l’industrie de la construction résidentielle lourde…”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceLaval, QC, CanadaHQ checked Sep 28, 202611-5012 contacts →

Partial evidence

“For over 25 years, Legico has been involved in major local and international construction projects.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceVaughan, ON, CanadaHQ checked Sep 28, 202651-20012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceCourtenay, BC, CanadaHQ checked Sep 28, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceMount Pearl, NL, CanadaHQ checked Sep 28, 20261-1010 contacts →

Partial evidence

“Feltham & Associates, Chartered Professional Accountants provide a full range of professional services in Audit, Accounting, Management Advisory, Business Plans and Proposals, Tax…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceSainte-marthe-sur-le-lac, QC, CanadaHQ checked Sep 28, 20261-1010 contacts →

Partial evidence

“Welcome to Précision DP, your dedicated partner for excellence in construction cost estimation services.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceCalgary, AB, CanadaHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

“Tech-Cost helps project owners and design teams make better capital decisions.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceToronto, CanadaHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“Real Estate Consulting”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceJersevville, ON, CanadaHQ checked Sep 28, 20261-109 contacts →

Partial evidence

“Southbrook Accounting Services is a remote, contractor-focused accounting firm serving trades businesses across Canada and the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceCambridge, ON, CanadaHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

“Built by Engineers operates primarily in the commercial and industrial building markets.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceKamloops, BC, CanadaHQ checked Sep 28, 202611-508 contacts →

Indirect evidence

“Customer service, meeting timelines and quality of workmanship are three keys we strive for within every project.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceQuébec, QC, CanadaHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Fondée en mars Consultants en Gestion de Construction (CGC) est née de la vision de quatre ingénieurs affichant des aspirations professionnelles et des expériences de travail…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceMarkham - York - Markham, ON, CanadaHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“GMP Contracting Ltd.”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceCanmore, AB, CanadaHQ checked Sep 28, 202611-507 contacts →

Strong evidence

“Bremner Engineering and Construction Ltd.(BECL), is a COR certified heavy civil construction organization that specializes in industrial, utility and municipal infrastructure…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceCastlegar, BC, CanadaHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

“Much more than accountants.we are idea generators, coaches, and financial counselors.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceLaval, QC, CanadaHQ checked Sep 28, 202611-505 contacts →

Partial evidence

“The incredibly promising avenues of construction fascinated Nazir Aridi very early on.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceTottenham, ON, CanadaHQ checked Sep 28, 202611-505 contacts →

Indirect evidence

“Four Corners Engineering is one of Ontario’s most diverse providers of professional technical services.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceConception Bay South, NL, CanadaHQ checked Sep 28, 202611-504 contacts →

Partial evidence

“At KelCo Construction Inc, we strive to provide all clients with long-term and cost-effective solutions on budget and ahead of schedule.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 115 heavy construction accounting firms based in Canada

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Heavy construction accounting firms based in Canada at a glance

As of Sep 28, 2026
28.3%Verified-email coverage
6.1Average contacts per company
1-10Median size (employees)
7.0%Largest-city concentration · Calgary
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
63
11-50
36
51-200
13
201-500
3

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 115 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 construction accounting firms, 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 construction accounting firms”. 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 construction accounting firms), 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 construction accounting firms, 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, 197 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 28, 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 heavy construction accounting firms, 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 construction accounting firms are there based in Canada?

RevenueBase identified 115 heavy construction accounting firms 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?

Nelson River Construction INC, headquartered in Winnipeg, tops this list with the largest team on record.

Which city has the most heavy construction accounting firms?

Calgary leads with 8 headquartered companies, followed by Toronto (6) and Laval (5).

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 197 verified decision-maker contacts tracked across these 115 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 28, 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.