Company lists · Data refreshed September 2026

Top 25 Air quality monitoring firms based in Canada

Name: Air quality monitoring firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 111 companies tracked

RevenueBase identified 111 air quality monitoring firms headquartered in Canada as of September 2026 and tracks 1,115 professional contacts across them, including 473 with verified work emails. Calgary is the largest hub.

This list covers air quality monitoring 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 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

111Companies

1,115Contacts tracked

473Verified emails

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The 25 largest air quality monitoring firms based in Canada

Ranked by team size

Top 25 of 111 air quality monitoring firms 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 air quality monitoring 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Ghgsat	Partial evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	51-200	228 contacts →
	Partial evidence “GHGSat is a global technology leader with pioneering emissions-monitoring capabilities that drive industrial efficiency with positive impact.” Source: RevenueBase Database · checked Sep 19, 2026
2	BGE Indoor AIR Quality Solutions	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 19, 2026	51-200	108 contacts →
	Strong evidence “AT BGE, WE BELIEVE CLEAN AIR MATTERS BGE Indoor Air Quality Solutions is committed to keeping people healthy in their workplaces, buildings, and communities.” Source: RevenueBase Database · checked Sep 19, 2026
3	Paracel Laboratories LTD	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	51-200	100 contacts →
	Indirect evidence “Paracel Laboratories Ltd.(Paracel) is one of the oldest, privately owned and operated environmental testing companies in Canada.” Source: RevenueBase Database · checked Sep 19, 2026
4	H2lab	Indirect evidence	Sainte-agathe-des-monts, QC, CanadaHQ checked Sep 19, 2026	51-200	51 contacts →
	Indirect evidence “Lorsque vient le temps d’obtenir l’heure juste en matière d’analyses environnementales, les organisations des secteurs privés et publics peuvent compter sur H2Lab.” Source: RevenueBase Database · checked Sep 19, 2026
5	Armstrong Monitoring	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	51-200	39 contacts →
	Partial evidence “Welcome to Armstrong Monitoring!” Source: RevenueBase Database · checked Sep 19, 2026
6	Wood Buffalo Environmental Association Wbea	Partial evidence	Fort Mcmurray, AB, CanadaHQ checked Sep 19, 2026	11-50	37 contacts →
	Partial evidence “The Wood Buffalo Environmental Association (WBEA) monitors the air in the Regional Municipality of Wood Buffalo, 24 hours a day, 365 days a year.” Source: RevenueBase Database · checked Sep 19, 2026
7	Global Analyzer Systems LTD	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	34 contacts →
	Partial evidence “Global Analyzer Systems is a complete package CEMS provider offering state of the art, multi-component Continuous Emission Monitoring Systems (CEMS), Data Acquisition and Control…” Source: RevenueBase Database · checked Sep 19, 2026
8	Avensys Solutions INC	Partial evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	11-50	32 contacts →
	Partial evidence “Avensys Solutions is an industry leader in providing instrumentation and integrated solutions for the monitoring of industrial processes and environmental surveillance…” Source: RevenueBase Database · checked Sep 19, 2026
9	Scentroid Ides Canada INC	Indirect evidence	Whitchurch-stouffville, ON, CanadaHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “Scentroid a division of IDES Canada Inc.” Source: RevenueBase Database · checked Sep 19, 2026
10	Odotech NOW Envirosuite	Partial evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	51-200	21 contacts →
	Partial evidence “Owned by Envirosuite, Odotech is an environmental technology company specializing in the monitoring and management of odours, gaseous contaminants and dust.” Source: RevenueBase Database · checked Sep 19, 2026
11	GOT Mold	Strong evidence	Saskatoon, SK, CanadaHQ checked Sep 19, 2026	11-50	18 contacts →
	Strong evidence “got mold?™ specializes in Indoor Air Quality.” Source: RevenueBase Database · checked Sep 19, 2026
12	Ecosystem Informatics INC	Strong evidence	Toronto, CanadaHQ checked Sep 19, 2026	11-50	14 contacts →
	Strong evidence “We are an environmental intelligence company using AI-powered technology to transform how we measure, understand, and act on air quality data.” Source: RevenueBase Database · checked Sep 19, 2026
13	VL Energy LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “VL Energy delivers regulatory approved, AI powered energy and emissions intelligence that helps industrial operators improve performance, strengthen compliance, and reduce…” Source: RevenueBase Database · checked Sep 19, 2026
14	Biomaxx Environmental	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	13 contacts →
	Strong evidence “BioMaxx Environmental provides a wide range of water quality monitoring services, particularly flow monitoring and wastewater sampling services.” Source: RevenueBase Database · checked Sep 19, 2026
15	Horizon Compliance Group INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
16	Tekran Instruments Corporation	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Tekran® is an international leader in environmental measurement technology, serving the needs of industry, government and research institutions with applications ranging from pure…” Source: RevenueBase Database · checked Sep 19, 2026
17	Haven IAQ	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	11 contacts →
	Strong evidence “HAVEN is the first and only smart whole-home air quality solutions provider.” Source: RevenueBase Database · checked Sep 19, 2026
18	Nanozen	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “SMEPAC HPAPI OEB 3-6 Products and Services Nanozen Industries Inc.” Source: RevenueBase Database · checked Sep 19, 2026
19	Accutron Instruments	Partial evidence	Sudbury, ON, CanadaHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “Accutron Instruments is the global choice for mine ventilation monitoring equipment.” Source: RevenueBase Database · checked Sep 19, 2026
20	Lehder Environmental Services	Strong evidence	Point Edward, ON, CanadaHQ checked Sep 19, 2026	11-50	10 contacts →
	Strong evidence “LEHDER Environmental Services is an environmental consulting company focused on providing Excellence in Industrial Air Quality Services.” Source: RevenueBase Database · checked Sep 19, 2026
21	Piera Systems INC	Strong evidence	Mississauga, ON, CanadaHQ checked Sep 19, 2026	11-50	9 contacts →
	Strong evidence “Piera Systems mission is To Make Air Quality Measurement as accurate, simple, inexpensive and pervasive as Temperature enabling a major improvement in the health of all humans.” Source: RevenueBase Database · checked Sep 19, 2026
22	Ecosafesense	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	9 contacts →
	Strong evidence “Real-time air quality monitoring and data-driven recommendations for healthier communities and workplaces.” Source: RevenueBase Database · checked Sep 19, 2026
23	Calvin Consulting Group LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	Detekta Solutions	Partial evidence	Québec, QC, CanadaHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “Spécialiste en détection de gaz depuis plus de 30 ans, Detekta vous propose des solutions sur-mesure pour vos besoins en analyse de l’air et en détection de gaz.” Source: RevenueBase Database · checked Sep 19, 2026
25	Surgically Clean AIR INC	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 19, 2026	51-200	8 contacts →
	Partial evidence “Surgically Clean Air is a market leader in the high-end, premium, air purification solutions.” 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: air quality monitoring firms. 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 air quality monitoring firms.
Partial evidence: Its own public description names part of air quality monitoring firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name air quality monitoring firms. 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 111 air quality monitoring firms based in Canada

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Air quality monitoring firms based in Canada at a glance

As of Sep 19, 2026

42.4%Verified-email coverage

10.0Average contacts per company

1-10Median size (employees)

13.5%Largest-city concentration · Calgary

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 111 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 air quality monitoring 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 “air quality monitoring 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 air quality monitoring 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 air quality monitoring 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, 473 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.

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 air quality monitoring 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 air quality monitoring firms are there based in Canada?

RevenueBase identified 111 air quality monitoring 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?

Ghgsat, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most air quality monitoring firms?

Calgary leads with 15 headquartered companies, followed by Montreal (12) and Edmonton (7).

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 473 verified decision-maker contacts tracked across these 111 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.