Company lists · Data refreshed September 2026

Top 18 Emissions verification companies based in Canada

RevenueBase identified 35 emissions verification companies headquartered in Canada as of September 2026 and tracks 511 professional contacts across them, including 193 with verified work emails. Calgary is the largest hub.

This list covers emissions verification companies 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
35Companies
511Contacts tracked
193Verified emails
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The 18 largest emissions verification companies based in Canada

Ranked by team size
Top 18 of 35 emissions verification companies 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 emissions verification companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceMontreal, QC, CanadaHQ checked Sep 19, 202651-200228 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
2Indirect evidenceKingston, ON, CanadaHQ checked Sep 19, 202651-20070 contacts →

Indirect evidence

“CADUCEON Enterprises Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceCalgary, AB, CanadaHQ checked Sep 19, 202611-5034 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
4Partial evidenceCalgary, AB, CanadaHQ checked Sep 19, 202611-5034 contacts →

Partial evidence

“We are emissions reduction experts with a vision for a world with near-zero oil & gas methane emissions.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceRed Deer, AB, CanadaHQ checked Sep 19, 202611-5015 contacts →

Partial 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 19, 2026
6Indirect evidenceNiagara, ON, CanadaHQ checked Sep 19, 20261-1014 contacts →

Indirect evidence

“Supporting industry by providing environmental regulatory compliance services and implementing sustainable compliance programs.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidencePoint Edward, ON, CanadaHQ checked Sep 19, 202611-5010 contacts →

Indirect 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
8Partial evidenceCalgary, AB, CanadaHQ checked Sep 19, 202611-509 contacts →

Partial evidence

“GreenPath Energy is North America’s premier emission management service and solution provider for the oil and gas industry.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceNewmarket, ON, CanadaHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

“BCX is an employee owned, privately held Canadian Company, providing air quality and environmental compliance services across Ontario.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceCalgary, AB, CanadaHQ checked Sep 19, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceCalgary, AB, CanadaHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceEdmonton, AB, CanadaHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceVaughan, ON, CanadaHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Enviro Management Inc.(EMI) is an environmental consulting firm based in the Greater Toronto Area.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceMontréal, QC, CanadaHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“HB EnviroSolutions est une entreprise spécialisée dans les services conseils en environnement et plus spécifiquement en qualité de l’air, émissions atmosphériques et gaz à effet…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceOakville, ON, CanadaHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Environmental Odour Consulting (E.O.C.) is an environmental consulting firm that specializes in odour assessment, testing and sampling.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceCalgary, AB, CanadaHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Consulting provider of air quality assessments, regulatory reporting, and air quality monitoring services.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceCalgary, AB, CanadaHQ checked Sep 19, 20261-101 contacts →

Partial evidence

“Green Mesa intends to become the nexus of emissions measurement, reporting, and rotating equipment performance by introducing intelligent monitoring to industrial organizations…”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceCalgary, AB, CanadaHQ checked Sep 19, 20261-101 contacts →

Partial evidence

“VENTMEDiC® is a cutting-edge digital Measurement, Reporting, and Verification (d-MRV) technology.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 18 of 35 emissions verification companies based in Canada

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Emissions verification companies based in Canada at a glance

As of Sep 19, 2026
37.8%Verified-email coverage
14.6Average contacts per company
1-10Median size (employees)
31.4%Largest-city concentration · Calgary
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
11
51-200
2

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 35 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 emissions verification companies, 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 “emissions verification companies”. 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 emissions verification companies), 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 emissions verification companies, 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, 193 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 emissions verification companies, 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 emissions verification companies are there based in Canada?

RevenueBase identified 35 emissions verification companies 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 emissions verification companies?

Calgary leads with 11 headquartered companies, followed by Montreal (4) and Edmonton (2).

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 193 verified decision-maker contacts tracked across these 35 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.