Company lists · Data refreshed September 2026

Top 25 Indoor air quality specialists based in Canada

Name: Indoor air quality specialists based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 200 companies tracked

RevenueBase identified 200 indoor air quality specialists headquartered in Canada as of September 2026 and tracks 1,481 professional contacts across them, including 537 with verified work emails. Calgary is the largest hub.

This list covers indoor air quality specialists 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 20, 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 20, 2026 86% judged on-target in blind review

200Companies

1,481Contacts tracked

537Verified emails

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The 25 largest indoor air quality specialists based in Canada

Ranked by team size

Top 25 of 200 indoor air quality specialists based in Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to indoor air quality specialists: 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	Arpi's Industries LTD	Strong evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	51-200	142 contacts →
	Strong evidence “Arpi’s Industries, a full service mechanical contractor, provides heating, air conditioning, ventilation, plumbing, and air quality solutions to residential and commercial markets.” Source: RevenueBase Database · checked Sep 20, 2026
2	BGE Indoor AIR Quality Solutions	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 20, 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 20, 2026
3	Paracel Laboratories LTD	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 20, 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 20, 2026
4	Modern Purair	Strong evidence	Kelowna, BC, CanadaHQ checked Sep 20, 2026	11-50	83 contacts →
	Strong evidence “Modern PURAIR® is your full-service Indoor Air Quality company.” Source: RevenueBase Database · checked Sep 20, 2026
5	Safetech Environmental Limited	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	55 contacts →
	Indirect evidence “Safetech Environmental Limited (Safetech) is a proudly Canadian environmental consulting firm with a national reach.” Source: RevenueBase Database · checked Sep 20, 2026
6	Fisher Engineering Limited	Indirect evidence	Markham, ON, CanadaHQ checked Sep 20, 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 20, 2026
7	Kilmer Environmental INC	Strong evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	43 contacts →
	Strong evidence “Established in 1987, Kilmer Environmental is a privately owned company dedicated to the distribution of superior applied Indoor Air Quality products for temperature and humidity…” Source: RevenueBase Database · checked Sep 20, 2026
8	MC Ventilation	Indirect evidence	Blainville, QC, CanadaHQ checked Sep 20, 2026	11-50	34 contacts →
	Indirect evidence “L’expertise de MC Ventilation permet aux entreprises du secteur commercial et industriel de Montréal et des environs de profiter d’espaces de vente et de travail dont le climat…” Source: RevenueBase Database · checked Sep 20, 2026
9	Duraclim	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	51-200	34 contacts →
	Indirect evidence “Chez DuraClim, nous sommes déterminés à garantir votre confort tout au long de l'année.” Source: RevenueBase Database · checked Sep 20, 2026
10	T. Harris Environmental Management INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “T.” Source: RevenueBase Database · checked Sep 20, 2026
11	ASE Services Alberta Safety & Environmental Services LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “Alberta Safety & Environmental Services is a fully integrated environmental health, safety and hygiene company with several years of professional industry experience.” Source: RevenueBase Database · checked Sep 20, 2026
12	Environnement S-Air	Partial evidence	Sherbrooke, QC, CanadaHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “S-Air est une firme spécialisée en hygiène industrielle comptant des employés expérimentés et pluridisciplinaires.” Source: RevenueBase Database · checked Sep 20, 2026
13	GOT Mold	Strong evidence	Saskatoon, SK, CanadaHQ checked Sep 20, 2026	11-50	18 contacts →
	Strong evidence “got mold?™ specializes in Indoor Air Quality.” Source: RevenueBase Database · checked Sep 20, 2026
14	Electro Aide INC	Strong evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	51-200	14 contacts →
	Strong evidence “For over 75 years, Electro Aide has been the go-to name in Montreal for reliable heating, cooling, and air quality solutions.” Source: RevenueBase Database · checked Sep 20, 2026
15	Q-Air Environmental Controls	Partial evidence	Stoney Creek, ON, CanadaHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
16	Applied Energy Systems INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	13 contacts →
	Strong evidence “Providing our customers with the most innovative Heating, Cooling and Air Quality solutions.” Source: RevenueBase Database · checked Sep 20, 2026
17	GTS Services	Strong evidence	Toronto, CanadaHQ checked Sep 20, 2026	11-50	13 contacts →
	Strong evidence “GTS Services are HVAC fan coil and heat pump replacement specialists, Certified Air System Cleaning Specialist's (ASCS) and Applied Microbial Remediation Technician's (AMRT)…” Source: RevenueBase Database · checked Sep 20, 2026
18	DCS Global	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “At DCS Global, we support organizations across a wide range of industries and business sectors to achieve cleaner, healthier, more sustainable, cost-effective, and environmentally…” Source: RevenueBase Database · checked Sep 20, 2026
19	Venmar Ventilation ULC	Strong evidence	Drummondville, QC, CanadaHQ checked Sep 20, 2026	201-500	11 contacts →
	Strong evidence “We are the North American leader in air quality.” Source: RevenueBase Database · checked Sep 20, 2026
20	Clairitech Innovations INC	Partial evidence	Boudreau-ouest, CanadaHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “ClairiTech Innovations has been developing innovative clean air technologies for over 30 years.” Source: RevenueBase Database · checked Sep 20, 2026
21	Haven IAQ	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 20, 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 20, 2026
22	Lehder Environmental Services	Strong evidence	Point Edward, ON, CanadaHQ checked Sep 20, 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 20, 2026
23	Acclaimed Heating, Cooling & Furnace Cleaning	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “About Acclaimed: Since 1995, Acclaimed!” Source: RevenueBase Database · checked Sep 20, 2026
24	Georgian Water & AIR	Indirect evidence	Barrie, ON, CanadaHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
25	Environmental Diagnostics INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Environmental Diagnostics Inc is an environmental services company based out of 5050 106 Ave SE, Calgary, Alberta, Canada.” Source: RevenueBase Database · checked Sep 20, 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: indoor air quality specialists. 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 indoor air quality specialists.
Partial evidence: Its own public description names part of indoor air quality specialists, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name indoor air quality specialists. 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 200 indoor air quality specialists based in Canada

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Indoor air quality specialists based in Canada at a glance

As of Sep 20, 2026

36.3%Verified-email coverage

7.4Average contacts per company

1-10Median size (employees)

9.5%Largest-city concentration · Calgary

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

116

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 200 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 indoor air quality specialists, 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 “indoor air quality specialists”. 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 indoor air quality specialists), 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 indoor air quality specialists, 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, 537 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 20, 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 indoor air quality specialists, 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 indoor air quality specialists are there based in Canada?

RevenueBase identified 200 indoor air quality specialists 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?

Arpi's Industries LTD, headquartered in Calgary, tops this list with the largest team on record.

Which city has the most indoor air quality specialists?

Calgary leads with 19 headquartered companies, followed by Toronto (14) and Edmonton (12).

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 537 verified decision-maker contacts tracked across these 200 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 20, 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.