Company lists · Data refreshed September 2026

Top 25 Pollution control contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 56 companies tracked

RevenueBase identified 56 company matches for pollution control contractors associated with Canada as of September 2026 and tracks 477 professional contacts across them, including 223 with verified work emails. Calgary is the largest hub.

This list covers company matches for pollution control contractors 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

56Companies

477Contacts tracked

223Verified emails

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The 25 largest pollution control contractors based in Canada

Ranked by team size

Top 25 of 56 company matches for pollution control contractors 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	Envirochem Services INC	Exact match	North Vancouver, BC, CanadaHQ recorded Sep 17, 2026	11-50	46 contacts →
	Exact match “We are your trusted environmental advisor since 1984.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Biorem INC	Exact match	Puslinch, ON, CanadaHQ recorded Sep 17, 2026	11-50	46 contacts →
	Exact match “Founded in 1991, BIOREM® is a global clean technology engineering company with one objective: engineer, design, manufacture and distribute the most innovative and effective…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	GCL Environmental LTD	Exact match	Calgary, AB, CanadaHQ recorded Sep 17, 2026	11-50	42 contacts →
	Exact match “GCL Environmental Ltd.(GCL) is a results-driven environmental consulting firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Airex Industries	Exact match	Laval, QC, CanadaHQ recorded Sep 17, 2026	51-200	36 contacts →
	Exact match “Founded in 1975, Airex Industries inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Questor Technology	Exact match	Calgary, AB, CanadaHQ recorded Sep 17, 2026	11-50	29 contacts →
	Exact match “Clear Solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	X-Terra Environmental Services LTD	Exact match	Lloydminster, AB, CanadaHQ recorded Sep 17, 2026	11-50	26 contacts →
	Exact match “X-Terra Environmental Services Ltd.(X-Terra) is a close network of Environmental Consultants and Professionals committed to serving industry, striving for environmental compliance…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Macrotek INC	Exact match	Markham, ON, CanadaHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “With more than 90 years of experience, Macrotek Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	A.H. Lundberg Systems Limited	Exact match	Vancouver, BC, CanadaHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “AHLS is a process technology consultancy that specializes in air- and water-related environmental control systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Biothermica Technologies INC	Exact match	Montreal, QC, CanadaHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Biothermica provides technologies, solutions & engineering services in the following sectors: industrial air pollution control, landfill gas, coal mine methane & waste-to-energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Q-Air Environmental Controls	Exact match	Stoney Creek, ON, CanadaHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match “Q-Air is committed to being the definitive choice in complete solutions to all iin-plant industrial air pollution by providing equipment, systems designs, and on-going services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	KH Environmental Consulting INC	Exact match	Niagara, ON, CanadaHQ recorded Sep 17, 2026	1-10	14 contacts →
	Exact match “Supporting industry by providing environmental regulatory compliance services and implementing sustainable compliance programs.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Core Environmental Consulting INC	Exact match	Edmonton, CanadaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “CORE is a company unlike any other.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Greenpath Energy	Exact match	Calgary, AB, CanadaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “GreenPath Energy is North America’s premier emission management service and solution provider for the oil and gas industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Imausar INC	Exact match	St-jérôme, CanadaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Fondée en 1995, Imausar Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Calvin Consulting Group LTD	Exact match	Calgary, AB, CanadaHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Quatrex Environmental INC	Exact match	Terrebonne, QC, CanadaHQ recorded Sep 17, 2026	11-50	6 contacts →
	Exact match “Canada's expert in environmental compliance products and solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Valgo Canada INC	Exact match	Montréal, QC, CanadaHQ recorded Sep 17, 2026	201-500	5 contacts →
	Exact match “Le groupe VALGO est spécialisé dans la dépollution des sols et des nappes phréatiques, les opérations de désamiantage et de déconstruction, ainsi que la transformation des déchets…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Hewitt Brockville LTD	Exact match	Brockville, ON, CanadaHQ recorded Sep 17, 2026	11-50	5 contacts →
	Exact match “The Company is involved in the design, development, manufacture and sale of a unique line of specialized pollution control boats for use on lakes, rivers, harbours, inland…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Aquafy Water Technologies INC	Exact match	Toronto, ON, CanadaHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “Aquafy is a sales and service company focused on innovative, environmental equipment used in the water and wastewater treatment industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	The TIN Knockers Industrial LTD	Exact match	Oshawa, CanadaHQ recorded Sep 17, 2026	11-50	4 contacts →
	Exact match “The Tin Knockers Industrial is focused on providing commercial & industrial air pollution control services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Welburn Consulting Limited	Exact match	Ottawa, ON, CanadaHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “Bringing together more than 30 years’ experience in environmental engineering, policy analysis and small business, we created a consulting firm that truly puts our clients first.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	SBB Energy Canada	Exact match	Niagara-on-the-lake, ON, CanadaHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “SBB Energy Canada is a multi-discipline consulting engineering design firm founded in 2016 and is dedicated to the Thermal Power, Conventional Energy, Renewable Energy, Air…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Dowclear	Exact match	Ottawa, ON, CanadaHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “Dowclear is a specialized environmental solutions services company based in the Eastern Ontario Region of Canada.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	AIR & Odour INC	Exact match	Boucherville, QC, CanadaHQ recorded Sep 17, 2026	1-10	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Atlantic AIR Cleaning Specialists	Exact match	Rothesay, NB, CanadaHQ recorded Sep 17, 2026	11-50	2 contacts →
	Exact match “There is a great deal of concern about the quality of the air we breathe – especially in the workplace.” 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 “pollution control contractors”. 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 56 pollution control contractors based in Canada

See the full list, filter by size, metro and specialty, and access 223 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Pollution control contractors based in Canada at a glance

As of Sep 17, 2026

46.8%Verified-email coverage

8.5Average contacts per company

11-50Median size (employees)

12.5%Largest-city concentration · Calgary

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 56 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 “pollution control contractors” 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 223 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.

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 “pollution control contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many pollution control contractors are there based in Canada?

RevenueBase identified 56 company matches for pollution control contractors 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?

Envirochem Services INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most pollution control contractors?

Calgary leads with 7 company records, followed by Montreal (5) and Mississauga (4).

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 223 professional contacts with verified work emails tracked across these 56 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.