Company lists · Data refreshed September 2026

Top 25 Oil and gas environmental remediation companies based in Canada

Name: Oil and gas environmental remediation companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 246 companies tracked

RevenueBase identified 246 oil and gas environmental remediation companies headquartered in Canada as of September 2026 and tracks 10,419 professional contacts across them, including 5,096 with verified work emails. Calgary is the largest hub.

This list covers oil and gas environmental remediation 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 17, 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 17, 2026 86% judged on-target in blind review

246Companies

10,419Contacts tracked

5,096Verified emails

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The 25 largest oil and gas environmental remediation companies based in Canada

Ranked by team size

Top 25 of 246 oil and gas environmental remediation companies based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas environmental remediation 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	GFL Environmental INC	Partial evidence	Vaughan, ON, CanadaHQ checked Sep 17, 2026	10001+	6,179 contacts →
	Partial evidence “GFL Environmental is the only major diversified environmental services company in North America offering services in solid waste management, liquid waste management and soil…” Source: RevenueBase Database · checked Sep 17, 2026
2	Tervita Corporation	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	606 contacts →
	Indirect evidence “We are Tervita, a company with dedicated employees on a single mission: the future.” Source: RevenueBase Database · checked Sep 17, 2026
3	Vertex Resource Group LTD	Partial evidence	Sherwood Park, AB, CanadaHQ checked Sep 17, 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 17, 2026
4	QM Environmental	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	201-500	253 contacts →
	Partial evidence “QM Environmental is a leading Canadian environmental and industrial services provider, trusted for over three decades to deliver complex projects safely, responsibly, and with…” Source: RevenueBase Database · checked Sep 17, 2026
5	Inflector Environmental Services	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 17, 2026	201-500	169 contacts →
	Strong evidence “Inflector Environmental Services has established itself as one of Canada’s leading environmental service providers in hazardous material remediation, demolition, fireproofing…” Source: RevenueBase Database · checked Sep 17, 2026
6	Summit	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	153 contacts →
	Strong evidence “Summit, An Earth Services Company, is a professional environmental consulting and services company serving the oil and gas, energy and utilities, resources and mining and…” Source: RevenueBase Database · checked Sep 17, 2026
7	Delsan-Aim	Partial evidence	Montreal / Toronto / Ottawa / Quebec, QC, CanadaHQ checked Sep 17, 2026	201-500	117 contacts →
	Partial evidence “Since 1994, Delsan-AIM has been at the forefront of delivering integrated, turn-key environmental services.” Source: RevenueBase Database · checked Sep 17, 2026
8	Milestone Environmental Contracting INC	Partial evidence	Langley, BC, CanadaHQ checked Sep 17, 2026	51-200	95 contacts →
	Partial evidence “No other environmental contractor in Canada can claim the same level of engineering and project-management expertise as Milestone.” Source: RevenueBase Database · checked Sep 17, 2026
9	Diproinduca	Partial evidence	Markham, ON, CanadaHQ checked Sep 17, 2026	51-200	89 contacts →
	Partial evidence “The company is privately held with its primary focus on resolving many of the environmental issues in the steel, petroleum, and construction industries.” Source: RevenueBase Database · checked Sep 17, 2026
10	Nucor Environmental Solutions	Partial evidence	Surrey, BC, CanadaHQ checked Sep 17, 2026	201-500	67 contacts →
	Partial evidence “Nucor Environmental Solutions prides itself on applying our experience and ingenuity to complex and demanding projects for all industries.” Source: RevenueBase Database · checked Sep 17, 2026
11	Stormtec Water Management	Indirect evidence	Delta, BC, CanadaHQ checked Sep 17, 2026	51-200	60 contacts →
	Indirect evidence “Established in 2003, Stormtec is the water management solutions company specializing in providing temporary and permanent industrial water treatment systems for sediment…” Source: RevenueBase Database · checked Sep 17, 2026
12	Swat Consulting INC	Indirect evidence	Leduc, AB, CanadaHQ checked Sep 17, 2026	51-200	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
13	Sublatus	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	53 contacts →
	Strong evidence “Sublatus is a specialized heavy equipment company focused on the beginning and end of life stages in the oil and gas sector.” Source: RevenueBase Database · checked Sep 17, 2026
14	Energera INC	Indirect evidence	Acheson, AB, CanadaHQ checked Sep 17, 2026	201-500	50 contacts →
	Indirect evidence “Headquartered in Edmonton, Alberta, Energera is an enertech company delivering innovative, emissions-reducing technologies and services to energy producers across North America.” Source: RevenueBase Database · checked Sep 17, 2026
15	RAM River Environmental Consultants LTD	Partial evidence	Rocky Mountain House, AB, CanadaHQ checked Sep 17, 2026	11-50	50 contacts →
	Partial evidence “Ram River Environmental Consultants Ltd.(RREC) is a professional environmental consulting company that provides reclamation program management and project supervision for upstream…” Source: RevenueBase Database · checked Sep 17, 2026
16	Terralogix Solutions INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
17	Fisher Engineering Limited	Indirect evidence	Markham, ON, CanadaHQ checked Sep 17, 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 17, 2026
18	Laforge Environnement INC	Indirect evidence	Varennes, QC, CanadaHQ checked Sep 17, 2026	11-50	46 contacts →
	Indirect evidence “Terrain contaminé, déversement de pétrole ou d’autres matières dangereuses, évaluation de site, prévention des risques et formation en environnement : quel que soit votre enjeu…” Source: RevenueBase Database · checked Sep 17, 2026
19	Tri-Phase Group	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	201-500	43 contacts →
	Partial evidence “Tri-Phase is a privately-owned, Canadian environmental and construction firm.” Source: RevenueBase Database · checked Sep 17, 2026
20	GCL Environmental LTD	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	11-50	42 contacts →
	Partial evidence “GCL Environmental Ltd.(GCL) is a results-driven environmental consulting firm.” Source: RevenueBase Database · checked Sep 17, 2026
21	VEI Contracting INC	Partial evidence	Kitchener, ON, CanadaHQ checked Sep 17, 2026	11-50	41 contacts →
	Partial evidence “VEI specializes in the remediation of soil, bedrock, groundwater and soil vapours for various contaminants including chlorinated solvents, petroleum hydrocarbons, polycyclic…” Source: RevenueBase Database · checked Sep 17, 2026
22	Next Environmental INC	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 17, 2026	11-50	37 contacts →
	Partial evidence “We are professionals, specializing in the investigation and remediation of contaminated sites.” Source: RevenueBase Database · checked Sep 17, 2026
23	Northwind Land Resources INC	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	11-50	35 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Solstice Environmental Management	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	11-50	34 contacts →
	Strong evidence “Solstice Environmental Management is a Western Canadian based environmental consulting company specializing in site assessment & remediation/reclamation, liability assessments…” Source: RevenueBase Database · checked Sep 17, 2026
25	Xcg, A Division Of Trace Associates INC	Indirect evidence	Kitchener, ON, CanadaHQ checked Sep 17, 2026	11-50	34 contacts →
	Indirect evidence “On February 1, 2024, XCG became a division of Trace Associates Inc.” Source: RevenueBase Database · checked Sep 17, 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: oil and gas environmental remediation companies. 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 oil and gas environmental remediation companies.
Partial evidence: Its own public description names part of oil and gas environmental remediation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas environmental remediation companies. 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 246 oil and gas environmental remediation companies based in Canada

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Oil and gas environmental remediation companies based in Canada at a glance

As of Sep 17, 2026

48.9%Verified-email coverage

42.4Average contacts per company

11-50Median size (employees)

21.1%Largest-city concentration · Calgary

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

102

11-50

102

51-200

201-500

1,001-5,000

10001+

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 246 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 oil and gas environmental remediation 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 “oil and gas environmental remediation 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 oil and gas environmental remediation 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 oil and gas environmental remediation 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, 5,096 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 17, 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.

Oil and gas environmental remediation companies by metro

Oil and gas environmental remediation companies in Calgary52

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 oil and gas environmental remediation 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 oil and gas environmental remediation companies are there based in Canada?

RevenueBase identified 246 oil and gas environmental remediation 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?

GFL Environmental INC, headquartered in Vaughan, tops this list with the largest team on record.

Which city has the most oil and gas environmental remediation companies?

Calgary leads with 52 headquartered companies, followed by Edmonton (10) and Toronto (9).

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 5,096 verified decision-maker contacts tracked across these 246 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 17, 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.