Company lists · Data refreshed September 2026
Top 25 Energy efficient building contractors based in Canada
RevenueBase identified 417 energy efficient building contractors headquartered in Canada as of September 2026 and tracks 4,585 professional contacts across them, including 2,464 with verified work emails. Toronto is the largest hub.
This list covers energy efficient building contractors 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.
The 25 largest energy efficient building contractors based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 335 contacts → | ||||
Partial evidence “RDH is a multidisciplinary consulting firm specializing in building performance, durability, and resilience.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 280 contacts → | ||||
Strong evidence “Jayman BUILT has been leading the home building industry in new home construction, sustainable building practices, and energy efficient design in the Calgary area for over 45…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 238 contacts → | ||||
Partial evidence “At Ecosystem, we believe in building meaningful relationships with both our clients and employees.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 168 contacts → | ||||
Indirect evidence “Société de développement en immobilier durable / Bâtir sur parole pour demain / Leader dans le développement immobilier au Québec, MONTONI compte à son actif près de 450 projets…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 153 contacts → | ||||
Partial evidence “AES Engineering provides comprehensive electrical engineering and lighting design services for building construction projects.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 127 contacts → | ||||
Partial evidence “Founded in 1980, Great Northern Insulation is Ontario's leading building envelope service provider, for the new construction and retrofit markets across commercial, institutional…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 90 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 74 contacts → | ||||
Indirect evidence “Nous œuvrons dans le domaine de l’expertise en bâtiment depuis plus de 30 ans.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 73 contacts → | ||||
Indirect evidence “We offer a wide variety of services throughout Canada in both French and English.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 73 contacts → | ||||
Strong evidence “Akonovia helps you with your energy efficiency and decarbonization goals.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 72 contacts → | ||||
Indirect evidence “For over 35 years, AltaPro has successfully completed projects through Design Build, IPD (Integrated Project Delivery) and other procurement methods.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 71 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 66 contacts → | ||||
Strong evidence “Ambioner is an engineering firm specializing in electromechanical design in the building sector, as well as energy efficiency.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 56 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 54 contacts → | ||||
Indirect evidence “CES Group is C.E.S Engineering Ltd.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 51 contacts → | ||||
Indirect evidence “INVIRO is a full-service Canadian engineering firm specializing in mechanical and electrical systems, along with sustainability consulting.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 44 contacts → | ||||
Strong evidence “Great Canadian sells energy-efficient, new-construction and renovation materials for homes and commercial properties.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 38 contacts → | ||||
Indirect evidence “Alliance offers Mechanical and Electrical Design and Construction services, providing integrated solutions across the industrial, commercial, institutional and high-rise…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 37 contacts → | ||||
Indirect evidence “We are an award-winning multi-disciplinary firm of creative problem-solvers, offering a range of services in architecture, planning, and interior design.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 37 contacts → | ||||
Partial evidence “Epp Siepman Engineering provides mechanical & electrical engineering consulting services for the building construction industry.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 34 contacts → | ||||
Indirect evidence “Nejmark Architect has built a reputation for delivering quality projects on schedule, on budget, and with exceptional service since our inception in 1989.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 32 contacts → | ||||
Partial evidence “Purpose develops solutions for healthy, long-life buildings that work in a low-carbon, circular economy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 32 contacts → | ||||
Partial evidence “EQ Building Performance is a collaborative Toronto-based consulting firm.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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 efficient building contractors. 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 efficient building contractors.
- Partial evidence
- Its own public description names part of energy efficient building contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy efficient building contractors. 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 417 energy efficient building contractors based in Canada
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Energy efficient building contractors based in Canada at a glance
As of Sep 16, 2026Companies by employee count
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 417 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 efficient building contractors, 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 efficient building contractors”. 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 efficient building contractors), 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 efficient building contractors, 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, 2,464 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 efficient building contractors by metro
- Energy efficient building contractors in Toronto55
- Energy efficient building contractors in Vancouver32
- Energy efficient building contractors in Montreal26
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 efficient building contractors, 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 efficient building contractors are there based in Canada?
RevenueBase identified 417 energy efficient building contractors 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?
RDH Building Science, headquartered in Burnaby, tops this list with the largest team on record.
Which city has the most energy efficient building contractors?
Toronto leads with 55 headquartered companies, followed by Vancouver (32) and Montreal (26).
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 2,464 verified decision-maker contacts tracked across these 417 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.
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