Company lists · Data refreshed November 2026

Top 25 Grading companies based in Canada

RevenueBase identified 312 company matches for grading companies associated with Canada as of November 2026 and tracks 2,456 professional contacts across them, including 697 with verified work emails. Edmonton is the largest hub.

This list covers company matches for grading 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 November 6, 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 Nov 6, 2026 How this list was built
312Companies
2,456Contacts tracked
697Verified emails
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The 25 largest grading companies based in Canada

Ranked by team size
Top 25 of 312 company matches for grading companies based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026201-500176 contacts →

Exact match

“For almost 40 years, we’ve been a proud extension of our client’s team.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBracebridge, ON, CanadaHQ recorded Nov 6, 2026501-1,000137 contacts →

Exact match

“Trusted name since 1949 • IAMFowler · Infrastructure, Aggregates & Asphalt and Maintenance · FOWLER Construction is one of Ontario's leading road-building, aggregate-producing and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAcheson, AB, CanadaHQ recorded Nov 6, 2026201-500128 contacts →

Exact match

“Kichton Contracting Ltd (KCL) has been in business since 1963 and is based out of Edmonton, Alberta, Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“Established in 1975 Agrodrain Systems Limited (ASL) began with the purchase of a bulldozer that we customized to create a specialized tile drainage plow.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026201-50095 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSt-bruno-de-montarville, QC, CanadaHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Bricon s'est établi comme un chef de file incontournable dans l'industrie de la construction au Québec.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBrampton, ON, CanadaHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“With over 25 years experience, Metro Infrastructure works to provide construction services across Toronto, Peel and Halton regions for construction companies, public works…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEdmonton, AB, CanadaHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Waiward Construction Managment Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBonnyville No 87, AB, CanadaHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Brown's began in 2004 with owner/operator, Mark Brown, as the sole employee.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchEdmonton, AB, CanadaHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“WCL is where quality work meets quality people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchVancouver, AB, CanadaHQ recorded Nov 6, 202651-20032 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLaval, QC, CanadaHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Notre entreprise œuvre dans le domaine de l’excavation et du génie civil depuis plus de 20 ans.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Trust Prattco Excavating, a family owned and operated company, for all your excavation needs in Calgary and the surrounding area!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWarwick Township, ON, CanadaHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Since 1973, Birnam Excavating Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBurnaby, BC, CanadaHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Terra Contracting is a full service earthworks contractor that provides a full package of services to various types and sizes of developments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLangley, CanadaHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“R.D.M.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHamilton, CanadaHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“residential construction, excavation, exterior sewers and water, stone slinger service, trucking, concrete flat work, rock breaking, re-cycled granular material for sale”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchEdmonton, AB, CanadaHQ recorded Nov 6, 2026201-50022 contacts →

Exact match

“Serving Edmonton and area since 1980, Mid-City’s mission has been to provide you, our customer, with the highest quality and most cost-effective excavating solutions, in the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWinnipeg, MB, CanadaHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“L.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchElginburg, ON, CanadaHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“Len Corcoran Excavating (LCE), a third-generation family operated business was founded in Kingston in 1962 by Len Corcoran.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCochrane, AB, CanadaHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Slimdor Contracting Ltd is a construction company based out of 42 Griffin Industrial Point, Cochrane, AB”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchParry Sound, ON, CanadaHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Wayne Hall Construction Inc.(Hall Construction) is a dynamic and specialized construction company dedicated to providing the highest quality construction services to our many…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPortage La Prairie, MB, CanadaHQ recorded Nov 6, 202651-20017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchVaughan, ON, CanadaHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“Founded by the Iozzo family in 1968, Blue Star Construction Corporation provides construction services and equipment rentals to developers across Ontario.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 312 grading companies based in Canada

See the full list, filter by size, metro and specialty, and access 697 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Grading companies based in Canada at a glance

As of Nov 6, 2026
28.4%Verified-email coverage
7.9Average contacts per company
11-50Median size (employees)
5.8%Largest-city concentration · Edmonton
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
142
11-50
102
51-200
41
201-500
6
501-1,000
2
1,001-5,000
1
5,001-10,000
1

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 312 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 “grading 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 697 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 November 6, 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.

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 “grading companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grading companies are there based in Canada?

RevenueBase identified 312 company matches for grading companies associated with Canada as of November 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?

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

Which city has the most grading companies?

Edmonton leads with 18 company records, followed by Calgary (12) and Ottawa (9).

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 697 professional contacts with verified work emails tracked across these 312 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 November 6, 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.