Company lists · Data refreshed September 2026

Top 21 Environmental consulting and remediation based in Ottawa, Canada

Name: Environmental consulting and remediation based in Ottawa, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 33 companies tracked

RevenueBase identified 33 company matches for environmental consulting and remediation associated with Ottawa, Canada as of September 2026 and tracks 1,151 professional contacts across them, including 611 with verified work emails. Across Canada, Calgary is the largest hub for this category (182 companies); Ottawa has 33.

This list covers company matches for environmental consulting and remediation associated with Ottawa, Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

33Companies

1,151Contacts tracked

611Verified emails

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The 21 largest environmental consulting and remediation based in Ottawa, Canada

Ranked by team size

Top 21 of 33 company matches for environmental consulting and remediation based in Ottawa, Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Tomlinson Group Of Companies	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	501-1,000	475 contacts →
	Exact match “Starting with a single-axle dump truck in 1952, R.W.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Blumetric	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	201-500	210 contacts →
	Exact match “Since 1976, BluMetric has been delivering innovative and sustainable solutions to complex environmental challenges.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Inflector Environmental Services	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	201-500	169 contacts →
	Exact match “Inflector Environmental Services has established itself as one of Canada’s leading environmental service providers in hazardous material remediation, demolition, fireproofing…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Clean Water Works INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	51-200	57 contacts →
	Exact match “Headquartered in Ottawa and Montreal serving Ontario, Quebec and New Brunswick, Clean Water Works is one of the nation’s foremost sewer rehabilitation companies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Geofirma Engineering LTD	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	24 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Subsurface Geotech & Environmental	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	24 contacts →
	Exact match “Geotechnical Engineers specializing in deep foundation design, inspection, and testing services and Tunnel and Embankment monitoring.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Buller Crichton Environmental INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	22 contacts →
	Exact match “With over 80 years of combined experience, Buller Crichton Environmental Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Kilgour & Associates LTD	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	19 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Cm3 Environmental INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	15 contacts →
	Exact match “CM3 specializes in providing environmental consulting services to organizations that insure real property and buildings, or who manage, market or own property in Eastern Ontario.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	HMRS	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match “H.M.R.S.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Greenough Environmental Consulting INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “ABOUT US Greenough Environmental Consulting Inc.(GEC) is an environmental consulting company specializing in designated substances, hazardous materials management, indoor air…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Asbex Environmental Contractors	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	51-200	9 contacts →
	Exact match “Asbex Environmental Contractors is a leading Canadian Environmental safety company that specializes in the safe removal of hazardous materials.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Omni-Mccann INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	8 contacts →
	Exact match “Omni-McCann offers complementary applied earth science expertise in terrain analysis, hydrogeology, civil and geotechnical engineering for both public- and private-sector clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Geocentric Environmental INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	1-10	8 contacts →
	Exact match “Geocentric Environmental Inc is an agile team of hydrogeologists, numerical modelers and data scientists focused on Hydrogeology, Water Management and Software Development of…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Mico Restoration & Abatement Services	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	8 contacts →
	Exact match “MICO Restoration: Trusted Experts in Environmental Remediation and Restoration Services Serving the Greater Ottawa Area, MICO specializes in: Asbestos Abatement (Types 1/2/3)…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Welburn Consulting Limited	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	1-10	4 contacts →
	Exact match “Bringing together more than 30 years’ experience in environmental engineering, policy analysis and small business, we created a consulting firm that truly puts our clients first.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Triangle Pump Service Limited	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	2 contacts →
	Exact match “Since 1953 Triangle Pump Service Limited has been a leader in the petroleum contracting sector covering both Eastern Ontario and Western Quebec.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Innovative Environmental Group INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	11-50	1 contacts →
	Exact match “Innovative Environmental Group (IEG) is an Environmental Contracting firm that specializes in removal of Asbestos, Hazardous Building Materials, Water Damage Remediation and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Corrin Environmental Consulting	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “We have decades of experience in all aspects of environmental risk assessment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Ottawa Contaminant Solutions	Exact match	Ottawa, CanadaHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Our Mission: To provide intelligent and competitive environmental solutions for stakeholders who manage buildings and building related operations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Compton Regulatory Consulting INC	Exact match	Ottawa, CanadaHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Providing consulting and contracting services for regulatory affairs for pest control, including UV-C devices, tobacco and vape, and agronomic inputs products to help you get to…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental consulting and remediation”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 21 of 33 environmental consulting and remediation based in Ottawa, Canada

See the full list, filter by size, metro and specialty, and access 611 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental consulting and remediation based in Ottawa, Canada at a glance

As of Sep 19, 2026

53.1%Verified-email coverage

34.9Average contacts per company

11-50Median size (employees)

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole Canada list rather than for Ottawa, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 33 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Ottawa, Canada whose business descriptions match “environmental consulting and remediation” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 611 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Environmental consulting and remediation by metro in Canada

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental consulting and remediation”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consulting and remediation are there based in Ottawa, Canada?

RevenueBase identified 33 company matches for environmental consulting and remediation associated with Ottawa, Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Tomlinson Group Of Companies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Canada has the most environmental consulting and remediation?

Calgary leads Canada with 182 company records, followed by Toronto (69) and Edmonton (62). Ottawa has 33.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 611 professional contacts with verified work emails tracked across these 33 companies; direct dials are available where recorded.

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 SmartSearch, 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.