Company lists · Data refreshed September 2026

Top 25 Waste audit and consulting firms based in Canada

Name: Waste audit and consulting firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 218 companies tracked

RevenueBase identified 218 waste audit and consulting firms headquartered in Canada as of September 2026 and tracks 3,089 professional contacts across them, including 1,126 with verified work emails. Toronto is the largest hub.

This list covers waste audit and consulting 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 14, 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 14, 2026 86% judged on-target in blind review

218Companies

3,089Contacts tracked

1,126Verified emails

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The 25 largest waste audit and consulting firms based in Canada

Ranked by team size

Top 25 of 218 waste audit and consulting firms based in Canada, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to waste audit and consulting 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	Miller Waste Systems INC	Indirect evidence	Markham, ON, CanadaHQ checked Sep 14, 2026	1,001-5,000	485 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
2	Wasteco, A Republic Services Company	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	201-500	147 contacts →
	Indirect evidence “Wasteco is a Republic Services company.” Source: RevenueBase Database · checked Sep 14, 2026
3	Emterra Environmental	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 14, 2026	1,001-5,000	116 contacts →
	Partial evidence “We have diverted more than 95 million metric tonnes of waste from landfill and annually ship more than metric tonnes of recyclables to end-markets to be re-manufactured into new…” Source: RevenueBase Database · checked Sep 14, 2026
4	Ricova	Partial evidence	Brossard, QC, CanadaHQ checked Sep 14, 2026	201-500	101 contacts →
	Partial evidence “Ricova, a global leader in waste management and recycling, offers comprehensive solutions for the collection, sorting, and recovery of recyclable materials.” Source: RevenueBase Database · checked Sep 14, 2026
5	Diproinduca	Indirect evidence	Markham, ON, CanadaHQ checked Sep 14, 2026	51-200	89 contacts →
	Indirect 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 14, 2026
6	Collective Waste Solutions	Partial evidence	Calgary, AB, CanadaHQ checked Sep 14, 2026	51-200	71 contacts →
	Partial evidence “Collective Waste Solutions is a locally owned Alberta based waste management company operating since 2006.” Source: RevenueBase Database · checked Sep 14, 2026
7	Evirum	Indirect evidence	Brébeuf, QC, CanadaHQ checked Sep 14, 2026	11-50	64 contacts →
	Indirect evidence “Evirum est un courtier pancanadien œuvrant dans le domaine environnemental et offrant une gamme étendue de services en gestion intégrée des matières résiduelles à sa clientèle des…” Source: RevenueBase Database · checked Sep 14, 2026
8	U-Pak Group Of Companies	Partial evidence	Etobicoke, ON, CanadaHQ checked Sep 14, 2026	201-500	62 contacts →
	Partial evidence “U-Pak delivers sustainable waste management solutions for businesses in Ontario and across the country.” Source: RevenueBase Database · checked Sep 14, 2026
9	Waste Logic INC	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 14, 2026	11-50	48 contacts →
	Partial evidence “Here at Waste Logic, we’re on a mission to do the right thing for our team, customers, community, and the environment.” Source: RevenueBase Database · checked Sep 14, 2026
10	Envirochem Services INC	Indirect evidence	North Vancouver, BC, CanadaHQ checked Sep 14, 2026	11-50	46 contacts →
	Indirect evidence “We are your trusted environmental advisor since 1984.” Source: RevenueBase Database · checked Sep 14, 2026
11	S2s Environmental INC	Partial evidence	Pickering, ON, CanadaHQ checked Sep 14, 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 14, 2026
12	Stratzer Conseils INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	51-200	44 contacts →
	Indirect evidence “Chamard et Associés Le cabinet d'expertise environnementale Chamard et Associés oeuvre dans les domaines de la gestion environnementale et des matières résiduelles depuis 1997.” Source: RevenueBase Database · checked Sep 14, 2026
13	AET Group INC	Indirect evidence	Kitchener, ON, CanadaHQ checked Sep 14, 2026	11-50	39 contacts →
	Indirect 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 14, 2026
14	Urban Impact Recycling LTD	Indirect evidence	New Westminster, BC, CanadaHQ checked Sep 14, 2026	201-500	39 contacts →
	Indirect evidence “Urban Impact was launched as the first multi-material recycling company in Metro Vancouver.” Source: RevenueBase Database · checked Sep 14, 2026
15	Cleanriver Recycling Solutions	Partial evidence	Aurora, ON, CanadaHQ checked Sep 14, 2026	51-200	38 contacts →
	Partial evidence “As a recognized leader in smart, customizable recycling and waste management solutions, CleanRiver is committed to helping customers meet their environmental stewardship goals…” Source: RevenueBase Database · checked Sep 14, 2026
16	Blue Heron Environmental	Partial evidence	Timmins, ON, CanadaHQ checked Sep 14, 2026	11-50	35 contacts →
	Partial evidence “Blue Heron is an environmental consulting firm headquartered in Timmins with an active presence in Sudbury, Thunder Bay, North Bay, Sault Ste.” Source: RevenueBase Database · checked Sep 14, 2026
17	Clear Environmental Solutions	Strong evidence	Calgary, AB, CanadaHQ checked Sep 14, 2026	11-50	35 contacts →
	Strong evidence “Clear Environmental Solutions ("Clear") is an environmental consulting firm focused on providing waste, water and environmental liability management solutions throughout Western…” Source: RevenueBase Database · checked Sep 14, 2026
18	Xcg, A Division Of Trace Associates INC	Indirect evidence	Kitchener, ON, CanadaHQ checked Sep 14, 2026	11-50	34 contacts →
	Indirect evidence “On February 1, 2024, XCG became a division of Trace Associates Inc.” Source: RevenueBase Database · checked Sep 14, 2026
19	TRY Recycling INC	Indirect evidence	London, ON, CanadaHQ checked Sep 14, 2026	51-200	31 contacts →
	Indirect evidence “Since 1991, TRY Recycling Inc.” Source: RevenueBase Database · checked Sep 14, 2026
20	Recycling Alternative	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 14, 2026	11-50	29 contacts →
	Indirect evidence “Recycling Alternative has been an integral part of Vancouver’s recycling landscape since 1989.” Source: RevenueBase Database · checked Sep 14, 2026
21	CD Sonter LTD	Strong evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	28 contacts →
	Strong 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 14, 2026
22	Maratek Environmental INC	Indirect evidence	Bolton, ON, CanadaHQ checked Sep 14, 2026	51-200	28 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
23	G2s Consulting INC	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 14, 2026	11-50	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
24	Solnor Environnement INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 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 14, 2026
25	Sperling Hansen Associates SHA	Indirect evidence	North Vancouver, BC, CanadaHQ checked Sep 14, 2026	11-50	26 contacts →
	Indirect evidence “Sperling Hansen Associates Inc.” Source: RevenueBase Database · checked Sep 14, 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: waste audit and consulting 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 waste audit and consulting firms.
Partial evidence: Its own public description names part of waste audit and consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name waste audit and consulting 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 218 waste audit and consulting firms based in Canada

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Waste audit and consulting firms based in Canada at a glance

As of Sep 14, 2026

36.5%Verified-email coverage

14.2Average contacts per company

11-50Median size (employees)

9.6%Largest-city concentration · Toronto

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

101

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 218 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 waste audit and consulting 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 “waste audit and consulting 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 waste audit and consulting 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 waste audit and consulting 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, 1,126 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 14, 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 waste audit and consulting 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 waste audit and consulting firms are there based in Canada?

RevenueBase identified 218 waste audit and consulting 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?

Miller Waste Systems INC, headquartered in Markham, tops this list with the largest team on record.

Which city has the most waste audit and consulting firms?

Toronto leads with 21 headquartered companies, followed by Edmonton (15) and Calgary (13).

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 1,126 verified decision-maker contacts tracked across these 218 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 14, 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.