Company lists · Data refreshed September 2026

Top 25 Contaminated site cleanup companies based in Canada

Name: Contaminated site cleanup companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 367 companies tracked

RevenueBase identified 367 contaminated site cleanup companies headquartered in Canada as of September 2026 and tracks 15,150 professional contacts across them, including 7,131 with verified work emails. Calgary is the largest hub.

This list covers contaminated site cleanup companies 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 19, 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 19, 2026 86% judged on-target in blind review

367Companies

15,150Contacts tracked

7,131Verified emails

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The 25 largest contaminated site cleanup companies based in Canada

Ranked by team size

Top 25 of 367 contaminated site cleanup companies based in Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to contaminated site cleanup companies: 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	GFL Environmental INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 19, 2026	10001+	6,179 contacts →
	Indirect evidence “GFL Environmental is the only major diversified environmental services company in North America offering services in solid waste management, liquid waste management and soil…” Source: RevenueBase Database · checked Sep 19, 2026
2	Golder	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	5,001-10,000	3,167 contacts →
	Indirect evidence “Golder was acquired by WSP.” Source: RevenueBase Database · checked Sep 19, 2026
3	Tomlinson Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	501-1,000	475 contacts →
	Indirect evidence “Starting with a single-axle dump truck in 1952, R.W.” Source: RevenueBase Database · checked Sep 19, 2026
4	Vertex Resource Group LTD	Indirect evidence	Sherwood Park, AB, CanadaHQ checked Sep 19, 2026	1,001-5,000	471 contacts →
	Indirect evidence “Since 1962, Vertex has been a leading North American provider of environmental services.” Source: RevenueBase Database · checked Sep 19, 2026
5	QM Environmental	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	201-500	253 contacts →
	Indirect evidence “QM Environmental is a leading Canadian environmental and industrial services provider, trusted for over three decades to deliver complex projects safely, responsibly, and with…” Source: RevenueBase Database · checked Sep 19, 2026
6	Blumetric	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	201-500	210 contacts →
	Indirect evidence “Since 1976, BluMetric has been delivering innovative and sustainable solutions to complex environmental challenges.” Source: RevenueBase Database · checked Sep 19, 2026
7	PGL Environmental Consultants	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	51-200	186 contacts →
	Indirect evidence “PGL Environmental Consultants consistently provides clients with a high level of support and confidence in our environmental management and planning decisions by combining…” Source: RevenueBase Database · checked Sep 19, 2026
8	Inflector Environmental Services	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	201-500	169 contacts →
	Indirect evidence “Inflector Environmental Services has established itself as one of Canada’s leading environmental service providers in hazardous material remediation, demolition, fireproofing…” Source: RevenueBase Database · checked Sep 19, 2026
9	Summit	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	51-200	153 contacts →
	Indirect evidence “Summit, An Earth Services Company, is a professional environmental consulting and services company serving the oil and gas, energy and utilities, resources and mining and…” Source: RevenueBase Database · checked Sep 19, 2026
10	DS Consultants LTD	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 19, 2026	51-200	126 contacts →
	Indirect evidence “DS Consultants, A BluMetric Company, is a publicly traded company in good standing with the Professional Engineers of Ontario (PEO) and the Association of Professional…” Source: RevenueBase Database · checked Sep 19, 2026
11	Delsan-Aim	Indirect evidence	Montreal / Toronto / Ottawa / Quebec, QC, CanadaHQ checked Sep 19, 2026	201-500	117 contacts →
	Indirect evidence “Since 1994, Delsan-AIM has been at the forefront of delivering integrated, turn-key environmental services.” Source: RevenueBase Database · checked Sep 19, 2026
12	Milestone Environmental Contracting INC	Indirect evidence	Langley, BC, CanadaHQ checked Sep 19, 2026	51-200	95 contacts →
	Indirect evidence “No other environmental contractor in Canada can claim the same level of engineering and project-management expertise as Milestone.” Source: RevenueBase Database · checked Sep 19, 2026
13	North Shore Environmental Consultants INC	Indirect evidence	Sherwood Park, AB, CanadaHQ checked Sep 19, 2026	51-200	89 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
14	Diproinduca	Indirect evidence	Markham, ON, CanadaHQ checked Sep 19, 2026	51-200	89 contacts →
	Indirect evidence “The company is privately held with its primary focus on resolving many of the environmental issues in the steel, petroleum, and construction industries.” Source: RevenueBase Database · checked Sep 19, 2026
15	LES Entreprises Michaudville INC	Indirect evidence	Mont-saint-hilaire, QC, CanadaHQ checked Sep 19, 2026	51-200	82 contacts →
	Indirect evidence “L’entreprise a connu ses débuts à Saint-Bernard-de-Michaudville, ce qui donne une signification à sa dénomination sociale.” Source: RevenueBase Database · checked Sep 19, 2026
16	Terrapex Environnement Ltée	Indirect evidence	Brossard, QC, CanadaHQ checked Sep 19, 2026	51-200	69 contacts →
	Indirect evidence “Terrapex Environnement Ltée est une firme de consultants multidisciplinaires en environnement.” Source: RevenueBase Database · checked Sep 19, 2026
17	Nucor Environmental Solutions	Indirect evidence	Surrey, BC, CanadaHQ checked Sep 19, 2026	201-500	67 contacts →
	Indirect evidence “Nucor Environmental Solutions prides itself on applying our experience and ingenuity to complex and demanding projects for all industries.” Source: RevenueBase Database · checked Sep 19, 2026
18	Active Earth	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 19, 2026	51-200	65 contacts →
	Partial evidence “Active Earth is an industry leading environmental consulting firm that was founded in 2007, specializing in Site Assessment and Remediation, Soil Testing and Disposal Management…” Source: RevenueBase Database · checked Sep 19, 2026
19	Swat Consulting INC	Indirect evidence	Leduc, AB, CanadaHQ checked Sep 19, 2026	51-200	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
20	Clean Water Works INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	51-200	57 contacts →
	Partial evidence “Headquartered in Ottawa and Montreal serving Ontario, Quebec and New Brunswick, Clean Water Works is one of the nation’s foremost sewer rehabilitation companies.” Source: RevenueBase Database · checked Sep 19, 2026
21	Amnor Industries INC	Indirect evidence	Rouyn-noranda, QC, CanadaHQ checked Sep 19, 2026	51-200	55 contacts →
	Indirect evidence “AmNor Industries est une entreprise spécialisée en nettoyage industriel ainsi qu’en gestion, transport etrécupération de matière résiduelle dangereuse (M.D.R.) L’équipe de gestion…” Source: RevenueBase Database · checked Sep 19, 2026
22	RAM River Environmental Consultants LTD	Indirect evidence	Rocky Mountain House, AB, CanadaHQ checked Sep 19, 2026	11-50	50 contacts →
	Indirect evidence “Ram River Environmental Consultants Ltd.(RREC) is a professional environmental consulting company that provides reclamation program management and project supervision for upstream…” Source: RevenueBase Database · checked Sep 19, 2026
23	Terralogix Solutions INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	51-200	49 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	Fisher Engineering Limited	Indirect evidence	Markham, ON, CanadaHQ checked Sep 19, 2026	11-50	47 contacts →
	Indirect evidence “Trusted by the Real Estate Industry since 1989, Fisher has successfully remediated hundreds of properties.” Source: RevenueBase Database · checked Sep 19, 2026
25	Envirochem Services INC	Indirect evidence	North Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	46 contacts →
	Indirect evidence “We are your trusted environmental advisor since 1984.” Source: RevenueBase Database · checked Sep 19, 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: contaminated site cleanup companies. 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 contaminated site cleanup companies.
Partial evidence: Its own public description names part of contaminated site cleanup companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name contaminated site cleanup companies. 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 367 contaminated site cleanup companies based in Canada

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Contaminated site cleanup companies based in Canada at a glance

As of Sep 19, 2026

47.1%Verified-email coverage

41.3Average contacts per company

11-50Median size (employees)

13.6%Largest-city concentration · Calgary

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

151

11-50

160

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 367 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 contaminated site cleanup companies, 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 “contaminated site cleanup companies”. 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 contaminated site cleanup companies), 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 contaminated site cleanup companies, 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, 7,131 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 19, 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.

Contaminated site cleanup companies by metro

Contaminated site cleanup companies in Calgary50

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 contaminated site cleanup companies, 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 contaminated site cleanup companies are there based in Canada?

RevenueBase identified 367 contaminated site cleanup companies 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?

GFL Environmental INC, headquartered in Vaughan, tops this list with the largest team on record.

Which city has the most contaminated site cleanup companies?

Calgary leads with 50 headquartered companies, followed by Edmonton (17) and Ottawa (17).

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 7,131 verified decision-maker contacts tracked across these 367 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 19, 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.