Company lists · Data refreshed September 2026

Top 25 Air permit engineering firms based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 89 companies tracked

RevenueBase identified 89 air permit engineering firms headquartered in Canada as of September 2026 and tracks 779 professional contacts across them, including 411 with verified work emails. Calgary is the largest hub.

This list covers air permit engineering 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 30, 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 30, 2026 86% judged on-target in blind review

89Companies

779Contacts tracked

411Verified emails

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The 25 largest air permit engineering firms based in Canada

Ranked by team size

Top 25 of 89 air permit engineering firms based in Canada, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to air permit engineering 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	NVIRA	Partial evidence	Montréal, QC, CanadaHQ checked Sep 30, 2026	51-200	106 contacts →
	Partial evidence “Since 2009, Nvira has established itself as a multidisciplinary environmental engineering consulting firm committed to delivering a distinctive client experience, providing…” Source: RevenueBase Database · checked Sep 30, 2026
2	North Shore Environmental Consultants INC	Indirect evidence	Sherwood Park, AB, CanadaHQ checked Sep 30, 2026	51-200	89 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
3	Envirochem Services INC	Indirect evidence	North Vancouver, BC, CanadaHQ checked Sep 30, 2026	11-50	46 contacts →
	Indirect evidence “We are your trusted environmental advisor since 1984.” Source: RevenueBase Database · checked Sep 30, 2026
4	Journey Engineering Corporation	Partial evidence	Calgary, AB, CanadaHQ checked Sep 30, 2026	51-200	45 contacts →
	Partial evidence “Journey Engineering Corporation (Journey) is a progressive consulting company founded in response to the energy industry’s need for a collaborative approach to engineering…” Source: RevenueBase Database · checked Sep 30, 2026
5	Remedy Engineering	Strong evidence	Calgary, AB, CanadaHQ checked Sep 30, 2026	11-50	39 contacts →
	Strong evidence “Remedy Engineering's comprehensive mechanical design experience includes heating, ventilation and air conditioning (HVAC), plumbing and drainage, and fire protection systems.” Source: RevenueBase Database · checked Sep 30, 2026
6	Consulair Gestion AIR ET Environnement	Partial evidence	Québec, CanadaHQ checked Sep 30, 2026	51-200	36 contacts →
	Partial evidence “Consulair est un des leaders canadiens en tout ce qui a trait à la gestion globale de projets pour l’air et l'environnement- Services d'ingénierie des procédés- Échantillonnage…” Source: RevenueBase Database · checked Sep 30, 2026
7	Signet Monitoring & Analysis	Indirect evidence	Red Deer, AB, CanadaHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “As part of Spartan Controls, Signet strengthens emissions testing and reliability services by combining unbiased gas skid maintenance recommendations, expert equipment guidance…” Source: RevenueBase Database · checked Sep 30, 2026
8	Proeng	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 30, 2026	11-50	14 contacts →
	Indirect evidence “Building and Energy Engineers” Source: RevenueBase Database · checked Sep 30, 2026
9	Permitman	Partial evidence	Richmond Hill, ON, CanadaHQ checked Sep 30, 2026	1-10	14 contacts →
	Partial evidence “Best Group of Professional Engineers In the Greater Toronto Area PERMITMAN specializes in offering diverse Building and HVAC permit services throughout the Metro Toronto Area.” Source: RevenueBase Database · checked Sep 30, 2026
10	KH Environmental Consulting INC	Indirect evidence	Niagara, ON, CanadaHQ checked Sep 30, 2026	1-10	14 contacts →
	Indirect evidence “Supporting industry by providing environmental regulatory compliance services and implementing sustainable compliance programs.” Source: RevenueBase Database · checked Sep 30, 2026
11	Horizon Compliance Group INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
12	King Epcm	Partial evidence	Markham, ON, CanadaHQ checked Sep 30, 2026	1-10	10 contacts →
	Partial evidence “King EPCM is a full service civil engineering company that does everything outside and below a proposed building.” Source: RevenueBase Database · checked Sep 30, 2026
13	Lehder Environmental Services	Partial evidence	Point Edward, ON, CanadaHQ checked Sep 30, 2026	11-50	10 contacts →
	Partial evidence “LEHDER Environmental Services is an environmental consulting company focused on providing Excellence in Industrial Air Quality Services.” Source: RevenueBase Database · checked Sep 30, 2026
14	Planifitech INC	Indirect evidence	Laval, QC, CanadaHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “SPÉCIALITÉS Planifitech inc, experts-conseils, offre des services dans les secteurs commercial, institutionnel, pharmaceutique et biotechnologique industriel.” Source: RevenueBase Database · checked Sep 30, 2026
15	A&a Environmental Consultants INC	Partial evidence	Woodstock, ON, CanadaHQ checked Sep 30, 2026	1-10	9 contacts →
	Partial evidence “Multi-disciplinary environmental consulting firm offering services in site assessments, water resource studies, air quality, and landfill design and monitoring.” Source: RevenueBase Database · checked Sep 30, 2026
16	Qortado Environmental Consulting INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 30, 2026	1-10	9 contacts →
	Indirect evidence “When you need innovative solutions and the undivided attention of senior professionals with unrivalled knowledge of today’s environmental regulatory and policy ecosystem, think…” Source: RevenueBase Database · checked Sep 30, 2026
17	Beaulier INC	Indirect evidence	Saint-bruno-de-montarville, QC, CanadaHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Nous sommes une société d’experts-conseils spécialisée dans la ventilation industrielle et la protection contre les incendies et les explosions.” Source: RevenueBase Database · checked Sep 30, 2026
18	DXE Conseil INC	Indirect evidence	Chicoutimi, QC, CanadaHQ checked Sep 30, 2026	1-10	9 contacts →
	Indirect evidence “Services conseils en ingénierie, environnement et gestion de l'énergie” Source: RevenueBase Database · checked Sep 30, 2026
19	Terex Environmental Group	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Terex is a leading Canadian environmental consulting firm providing technical guidance for environmental compliance.” Source: RevenueBase Database · checked Sep 30, 2026
20	Progestech INC	Indirect evidence	Trois-rivieres, QC, CanadaHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Progestech Inc is a renewables and environment company based out of 303, Dessureault, Trois-Rivieres, Quebec, Canada.” Source: RevenueBase Database · checked Sep 30, 2026
21	Greenstone Engineering LTD	Partial evidence	Sault Ste. Marie, ON, CanadaHQ checked Sep 30, 2026	11-50	8 contacts →
	Partial evidence “Greenstone provides environmental engineering and consulting services across Northern and Central Ontario with offices in Sault Ste.” Source: RevenueBase Database · checked Sep 30, 2026
22	BCX Environmental Consulting	Partial evidence	Newmarket, ON, CanadaHQ checked Sep 30, 2026	1-10	8 contacts →
	Partial evidence “BCX is an employee owned, privately held Canadian Company, providing air quality and environmental compliance services across Ontario.” Source: RevenueBase Database · checked Sep 30, 2026
23	Peritus Environmental Consultants INC	Partial evidence	Breslau, ON, CanadaHQ checked Sep 30, 2026	11-50	8 contacts →
	Partial evidence “Peritus Environmental Consultants Inc.(Peritus) is a consulting firm that provides a broad range of environmental engineering services.” Source: RevenueBase Database · checked Sep 30, 2026
24	Calvin Consulting Group LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 30, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
25	Lexus Engineering LTD	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 30, 2026	1-10	7 contacts →
	Strong evidence “Lexus Engineering is a consulting and engineering firm specializing in mechanical, electrical, energy, and project management in the indoor air quality and HVAC space.” Source: RevenueBase Database · checked Sep 30, 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 permit engineering 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 permit engineering firms.
Partial evidence: Its own public description names part of air permit engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name air permit engineering 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 89 air permit engineering firms based in Canada

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Air permit engineering firms based in Canada at a glance

As of Sep 30, 2026

52.8%Verified-email coverage

8.8Average contacts per company

1-10Median size (employees)

14.6%Largest-city concentration · Calgary

Sep 30, 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 89 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 permit engineering 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 permit engineering 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 permit engineering 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 permit engineering 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, 411 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 30, 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 permit engineering 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 permit engineering firms are there based in Canada?

RevenueBase identified 89 air permit engineering 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?

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

Which city has the most air permit engineering firms?

Calgary leads with 13 headquartered companies, followed by Mississauga (6) and Edmonton (5).

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 411 verified decision-maker contacts tracked across these 89 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 30, 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.