Company lists · Data refreshed September 2026

Top 25 Energy efficiency services companies based in Canada

Name: Energy efficiency services companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 314 companies tracked

RevenueBase identified 314 energy efficiency services companies headquartered in Canada as of September 2026 and tracks 5,601 professional contacts across them, including 2,982 with verified work emails. Toronto is the largest hub.

This list covers energy efficiency services 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 16, 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 16, 2026 86% judged on-target in blind review

314Companies

5,601Contacts tracked

2,982Verified emails

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The 25 largest energy efficiency services companies based in Canada

Ranked by team size

Top 25 of 314 energy efficiency services companies based in Canada, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency services 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	Ainsworth INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,405 contacts →
	Partial evidence “Our customers depend on their buildings, industrial assets, processes, and energy management, to help them meet competitive challenges.” Source: RevenueBase Database · checked Sep 16, 2026
2	MCW Group Of Companies	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	201-500	363 contacts →
	Partial evidence “Since 1964 the MCW Group has built a solid reputation for the delivery of Professional Consulting Engineering Services, Energy Management Services, and Engineering Development…” Source: RevenueBase Database · checked Sep 16, 2026
3	Ecosystem	Indirect evidence	Québec, QC, CanadaHQ checked Sep 16, 2026	201-500	238 contacts →
	Indirect evidence “At Ecosystem, we believe in building meaningful relationships with both our clients and employees.” Source: RevenueBase Database · checked Sep 16, 2026
4	Pageau Morel ET Associés INC	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 16, 2026	201-500	234 contacts →
	Indirect evidence “Fondée en 1956, PAGEAU MOREL est une entreprise spécialisée dans les domaines de l'ingénierie mécanique et électrique, de l'efficacité énergétique et de l'écoconception.” Source: RevenueBase Database · checked Sep 16, 2026
5	Greenfoot Energy Solutions	Strong evidence	Moncton, NB, CanadaHQ checked Sep 16, 2026	501-1,000	206 contacts →
	Strong evidence “Greenfoot Energy Solutions was established in 2014 by a group of energy experts dedicated to improving energy efficiency in Atlantic Canada.” Source: RevenueBase Database · checked Sep 16, 2026
6	ESC Automation	Partial evidence	Surrey, BC, CanadaHQ checked Sep 16, 2026	501-1,000	170 contacts →
	Partial evidence “Established in Vancouver over thirty-five years ago, ESC is a leading service provider in Building Automation and Energy Management.” Source: RevenueBase Database · checked Sep 16, 2026
7	MPN Capital Markets	Partial evidence	Boston, ON, CanadaHQ checked Sep 16, 2026	11-50	118 contacts →
	Partial evidence “MPN Capital Markets is a full-service, energy management consulting firm that advises businesses, governments, non-governmental organizations, homeowners and not-for-profits.” Source: RevenueBase Database · checked Sep 16, 2026
8	Provident Energy Management	Partial evidence	Vaughan, ON, CanadaHQ checked Sep 16, 2026	51-200	91 contacts →
	Partial evidence “Provident Energy Management Inc.” Source: RevenueBase Database · checked Sep 16, 2026
9	ACCS	Indirect evidence	Terrebonne, QC, CanadaHQ checked Sep 16, 2026	51-200	90 contacts →
	Indirect evidence “Leader au Québec en automatisation et en intégration technologique, ACCS améliore la performance des bâtiments depuis plus de 30 ans.” Source: RevenueBase Database · checked Sep 16, 2026
10	The RPM Groups	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 16, 2026	11-50	80 contacts →
	Indirect evidence “We deliver solutions for our clients because we listen to their needs.” Source: RevenueBase Database · checked Sep 16, 2026
11	TST INC	Indirect evidence	Rosemère, QC, CanadaHQ checked Sep 16, 2026	11-50	73 contacts →
	Indirect evidence “We offer a wide variety of services throughout Canada in both French and English.” Source: RevenueBase Database · checked Sep 16, 2026
12	Akonovia	Strong evidence	Montréal, CanadaHQ checked Sep 16, 2026	51-200	73 contacts →
	Strong evidence “Akonovia helps you with your energy efficiency and decarbonization goals.” Source: RevenueBase Database · checked Sep 16, 2026
13	Prism Engineering Limited	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 16, 2026	51-200	67 contacts →
	Indirect evidence “We believe in changing systems for a better world.” Source: RevenueBase Database · checked Sep 16, 2026
14	Simply Green Home Services INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	201-500	60 contacts →
	Partial evidence “Simply Green offers a wide range of options to help you get equipped with reliable, top-quality, high-efficiency heating and cooling systems.” Source: RevenueBase Database · checked Sep 16, 2026
15	PMC Energy Limited	Partial evidence	Moncton, NB, CanadaHQ checked Sep 16, 2026	51-200	56 contacts →
	Partial evidence “Considering over 40% of all energy is consumed by buildings, it is no wonder building managers and owners are becoming increasingly mindful of energy costs and usage.” Source: RevenueBase Database · checked Sep 16, 2026
16	Continual Energy INC	Partial evidence	Toronto, CanadaHQ checked Sep 16, 2026	51-200	55 contacts →
	Partial evidence “The team at Continual Energy Inc.” Source: RevenueBase Database · checked Sep 16, 2026
17	CES Group	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 16, 2026	51-200	54 contacts →
	Indirect evidence “CES Group is C.E.S Engineering Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
18	Active Business Services ABS	Strong evidence	Burlington, ON, CanadaHQ checked Sep 16, 2026	11-50	54 contacts →
	Strong evidence “Active Business Services (ABS) is an industry leader in energy management solutions, with a focus to help organizations accelerate their energy efficiency and optimize energy…” Source: RevenueBase Database · checked Sep 16, 2026
19	Sustainable Projects Group SPG	Strong evidence	Calgary, AB, CanadaHQ checked Sep 16, 2026	11-50	53 contacts →
	Strong evidence “Sustainable Projects Group is a design-build energy efficiency company working with industry leaders to help accomplish their energy savings goals by providing them with the…” Source: RevenueBase Database · checked Sep 16, 2026
20	Nerva Energy	Partial evidence	Hamilton, ON, CanadaHQ checked Sep 16, 2026	51-200	50 contacts →
	Partial evidence “Nerva Energy is an award-winning energy advisory firm, helping our clients to maximize their energy performance, decrease GHG emissions, and improve indoor air quality.” Source: RevenueBase Database · checked Sep 16, 2026
21	Ecofitt Corp	Strong evidence	Calgary, AB, CanadaHQ checked Sep 16, 2026	51-200	38 contacts →
	Strong evidence “Ecofitt Corporation is recognized as a premier "Clean Energy" solutions provider and has earned its unparalleled reputation as the premier distributor of high-efficiency water and…” Source: RevenueBase Database · checked Sep 16, 2026
22	Genisys Consulting Group	Indirect evidence	Québec, QC, CanadaHQ checked Sep 16, 2026	11-50	37 contacts →
	Indirect evidence “Providing companies with a competitive edge, Génisys believes in taking fully into account market competition imperatives and its clients’ concerns.” Source: RevenueBase Database · checked Sep 16, 2026
23	NRG Management	Partial evidence	Winnipeg, MB, CanadaHQ checked Sep 16, 2026	51-200	36 contacts →
	Partial evidence “Since 1993 the NRG Management team have provided commercial, industrial and institutional clients with a full range of complete energy management systems, bringing comfort…” Source: RevenueBase Database · checked Sep 16, 2026
24	Energy Performance Services EPS	Strong evidence	Montreal, QC, CanadaHQ checked Sep 16, 2026	11-50	31 contacts →
	Strong evidence “For over 34 years, EPS has been a trusted leader in industrial energy efficiency and energy management across Canada and internationally.” Source: RevenueBase Database · checked Sep 16, 2026
25	Enerlife Consulting INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	30 contacts →
	Partial evidence “Enerlife helps owners and managers achieve the full potential of their buildings, drawing on our dynamic national database and experience with leading organizations to provide…” Source: RevenueBase Database · checked Sep 16, 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: energy efficiency services 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 energy efficiency services companies.
Partial evidence: Its own public description names part of energy efficiency services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency services 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 314 energy efficiency services companies based in Canada

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Energy efficiency services companies based in Canada at a glance

As of Sep 16, 2026

53.2%Verified-email coverage

17.8Average contacts per company

1-10Median size (employees)

15.0%Largest-city concentration · Toronto

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

170

11-50

100

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 314 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 energy efficiency services 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 “energy efficiency services 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 energy efficiency services 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 energy efficiency services 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, 2,982 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 16, 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.

Energy efficiency services companies by metro

Energy efficiency services companies in Toronto47

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 energy efficiency services 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 energy efficiency services companies are there based in Canada?

RevenueBase identified 314 energy efficiency services 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?

Ainsworth INC, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most energy efficiency services companies?

Toronto leads with 47 headquartered companies, followed by Montreal (19) and Calgary (17).

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 2,982 verified decision-maker contacts tracked across these 314 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 16, 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.