Company lists · Data refreshed September 2026

Top 25 Environmental audit services based in Canada

Name: Environmental audit services based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 136 companies tracked

RevenueBase identified 136 environmental audit services headquartered in Canada as of September 2026 and tracks 2,203 professional contacts across them, including 1,172 with verified work emails. Calgary is the largest hub.

This list covers environmental audit services 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 28, 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 28, 2026 86% judged on-target in blind review

136Companies

2,203Contacts tracked

1,172Verified emails

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The 25 largest environmental audit services based in Canada

Ranked by team size

Top 25 of 136 environmental audit services based in Canada, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to environmental audit services: 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	Vertex Resource Group LTD	Partial evidence	Sherwood Park, AB, CanadaHQ checked Sep 28, 2026	1,001-5,000	471 contacts →
	Partial evidence “Since 1962, Vertex has been a leading North American provider of environmental services.” Source: RevenueBase Database · checked Sep 28, 2026
2	PGL Environmental Consultants	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	51-200	186 contacts →
	Partial 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 28, 2026
3	Keystone Environmental	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 28, 2026	51-200	158 contacts →
	Partial evidence “Keystone Environmental is a proudly Canadian (owned and operated) full service environmental consultancy helping businesses meet their environmental goals and objectives.” Source: RevenueBase Database · checked Sep 28, 2026
4	Associated Environmental Consultants	Partial evidence	Vernon, BC, CanadaHQ checked Sep 28, 2026	501-1,000	105 contacts →
	Partial evidence “Associated Environmental Consultants are experts in environmental science and management with a passion for our work, our communities, and our environment.” Source: RevenueBase Database · checked Sep 28, 2026
5	Canada North Environmental Services	Partial evidence	Saskatoon, SK, CanadaHQ checked Sep 28, 2026	51-200	62 contacts →
	Partial evidence “Canada North Environmental Services (CanNorth) provides a full range of environmental services and is 100% First Nations owned by the Lac La Ronge Indian Band, Saskatchewan’s…” Source: RevenueBase Database · checked Sep 28, 2026
6	Pesca Environment	Partial evidence	Carleton-sur-mer, QC, CanadaHQ checked Sep 28, 2026	51-200	60 contacts →
	Partial evidence “PESCA Environment assists you in the realization of your projects for more than 30 years.” Source: RevenueBase Database · checked Sep 28, 2026
7	Ecometrix Incorporated	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 28, 2026	11-50	56 contacts →
	Indirect evidence “Ecometrix rebranded as Egis in 2026.” Source: RevenueBase Database · checked Sep 28, 2026
8	H2lab	Indirect evidence	Sainte-agathe-des-monts, QC, CanadaHQ checked Sep 28, 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 28, 2026
9	Envirochem Services INC	Partial evidence	North Vancouver, BC, CanadaHQ checked Sep 28, 2026	11-50	46 contacts →
	Partial evidence “We are your trusted environmental advisor since 1984.” Source: RevenueBase Database · checked Sep 28, 2026
10	S2s Environmental INC	Partial evidence	Pickering, ON, CanadaHQ checked Sep 28, 2026	11-50	44 contacts →
	Partial evidence “S2S Environmental is a specialist environmental consulting firm providing advice and services to stakeholders in the Real Estate sector.” Source: RevenueBase Database · checked Sep 28, 2026
11	ORTAM	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 28, 2026	11-50	43 contacts →
	Indirect evidence “ENVIRONNEMENT (ORTAM-ENVIRO) Vérification de conformité selon la réglementation en vigueur Évaluations environnementales (phase I) Caractérisations environnementales (phases II et…” Source: RevenueBase Database · checked Sep 28, 2026
12	GCL Environmental LTD	Partial evidence	Calgary, AB, CanadaHQ checked Sep 28, 2026	11-50	42 contacts →
	Partial evidence “GCL Environmental Ltd.(GCL) is a results-driven environmental consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
13	AET Group INC	Partial evidence	Kitchener, ON, CanadaHQ checked Sep 28, 2026	11-50	39 contacts →
	Partial evidence “AET Group is an environmental consultancy firm committed to our ecological, financial and social responsibilities, working together collaboratively to find innovative solutions…” Source: RevenueBase Database · checked Sep 28, 2026
14	Groupe SCP Environnement INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 28, 2026	51-200	39 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
15	Xcg, A Division Of Trace Associates INC	Indirect evidence	Kitchener, ON, CanadaHQ checked Sep 28, 2026	11-50	34 contacts →
	Indirect evidence “On February 1, 2024, XCG became a division of Trace Associates Inc.” Source: RevenueBase Database · checked Sep 28, 2026
16	OZA Inspections LTD	Partial evidence	Stoney Creek, ON, CanadaHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial evidence “Oza Inspections Ltd is an Environmental Services company located in 215 Roberts Rd, Grimsby, ON, Canada.” Source: RevenueBase Database · checked Sep 28, 2026
17	CD Sonter LTD	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “CD SONTER, an industry leader in sustainable solutions, provides waste auditing and environmental consulting, and project management of environmental awards and certifications.” Source: RevenueBase Database · checked Sep 28, 2026
18	Solnor Environnement INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “Solnor est une firme de services d’experts-conseils en environnement, géotechnique, contrôle des matériaux, service minier, recyclage de batteries.” Source: RevenueBase Database · checked Sep 28, 2026
19	X-Terra Environmental Services LTD	Partial evidence	Lloydminster, AB, CanadaHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial evidence “X-Terra Environmental Services Ltd.(X-Terra) is a close network of Environmental Consultants and Professionals committed to serving industry, striving for environmental compliance…” Source: RevenueBase Database · checked Sep 28, 2026
20	T. Harris Environmental Management INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “T.” Source: RevenueBase Database · checked Sep 28, 2026
21	Premier Environmental Services INC	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Take your sustainability and wellness commitment one step further with Premier's full suite of solutions.” Source: RevenueBase Database · checked Sep 28, 2026
22	Inneo Environnement	Indirect evidence	Lévis, QC, CanadaHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “Inneo est une firme d'experts-conseils en environnement formée d'un groupe d'associés dynamiques, complété par une équipe multidisplinaire, à l'écoute de ses clients.” Source: RevenueBase Database · checked Sep 28, 2026
23	Viresco Solutions INC	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 28, 2026	1-10	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
24	EEM EHS Management EEM Gestion ESS	Partial evidence	Montreal, QC, CanadaHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “EEM EHS Management is an independent consultancy helping clients in the public, private and non-profit sectors in their environmental and health & safety management initiatives.” Source: RevenueBase Database · checked Sep 28, 2026
25	Azimuth Consulting Group INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “We created Azimuth in 2001 as a small team of senior-level consultants that delivers value to their clients.” Source: RevenueBase Database · checked Sep 28, 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: environmental audit services. 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 environmental audit services.
Partial evidence: Its own public description names part of environmental audit services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental audit services. 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 136 environmental audit services based in Canada

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Environmental audit services based in Canada at a glance

As of Sep 28, 2026

53.2%Verified-email coverage

16.2Average contacts per company

1-10Median size (employees)

11.0%Largest-city concentration · Calgary

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 136 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 environmental audit services, 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 “environmental audit services”. 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 environmental audit services), 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 environmental audit services, 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, 1,172 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 28, 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 environmental audit services, 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 environmental audit services are there based in Canada?

RevenueBase identified 136 environmental audit services 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?

Vertex Resource Group LTD, headquartered in Sherwood Park, tops this list with the largest team on record.

Which city has the most environmental audit services?

Calgary leads with 15 headquartered companies, followed by Montreal (12) and Toronto (10).

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 1,172 verified decision-maker contacts tracked across these 136 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 28, 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.