Company lists · Data refreshed September 2026

Top 25 Greenhouse ventilation system companies based in Canada

Name: Greenhouse ventilation system companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 76 companies tracked

RevenueBase identified 76 greenhouse ventilation system companies headquartered in Canada as of September 2026 and tracks 1,274 professional contacts across them, including 480 with verified work emails. Leamington is the largest hub.

This list covers greenhouse ventilation system 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 19, 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 19, 2026 86% judged on-target in blind review

76Companies

1,274Contacts tracked

480Verified emails

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The 25 largest greenhouse ventilation system companies based in Canada

Ranked by team size

Top 25 of 76 greenhouse ventilation system companies based in Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to greenhouse ventilation system 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	Oxygen8	Indirect evidence	Burnaby, BC, CanadaHQ checked Sep 19, 2026	201-500	120 contacts →
	Indirect evidence “Ox·y·gen·ate your space.” Source: RevenueBase Database · checked Sep 19, 2026
2	Conviron	Partial evidence	Winnipeg, MB, CanadaHQ checked Sep 19, 2026	51-200	101 contacts →
	Partial evidence “Established in 1964, Conviron is the world leader in the design, manufacture and installation of controlled environment systems for plant science research.” Source: RevenueBase Database · checked Sep 19, 2026
3	SEF	Partial evidence	Leamington, ON, CanadaHQ checked Sep 19, 2026	51-200	87 contacts →
	Partial evidence “Since 1994, SEF® has grown from a specialized fabricator of greenhouse parts, equipment, and structures into a trusted partner delivering complete greenhouse solutions that…” Source: RevenueBase Database · checked Sep 19, 2026
4	Systemair NA	Strong evidence	Bouctouche, NB, CanadaHQ checked Sep 19, 2026	5,001-10,000	85 contacts →
	Strong evidence “Systemair is a leading ventilation company with operations in 51 countries in Europe, North America, the Middle East, Asia, Australia and Africa.” Source: RevenueBase Database · checked Sep 19, 2026
5	Bousquet Technologies	Partial evidence	Sainte-Julie, QC, CanadaHQ checked Sep 19, 2026	51-200	82 contacts →
	Partial evidence “A pioneer in the design and manufacturing of ventilation equipment in Canada, Bousquet has more than a half a century of experience in the field.” Source: RevenueBase Database · checked Sep 19, 2026
6	Argus Control Systems	Partial evidence	Langley, BC, CanadaHQ checked Sep 19, 2026	51-200	55 contacts →
	Partial evidence “Argus provides advanced environmental control systems that are customized to each grower's requirements and are adaptable to their changing needs, enabling them to operate their…” Source: RevenueBase Database · checked Sep 19, 2026
7	LES Industries Perform AIR	Strong evidence	Candiac, QC, CanadaHQ checked Sep 19, 2026	51-200	38 contacts →
	Strong evidence “Chef de file au Québec en matière de systèmes de ventilation, climatisation, et chauffage, nous accompagnons l’ensemble de nos clients depuis plus de 30 ans.” Source: RevenueBase Database · checked Sep 19, 2026
8	Cravo Equipment LTD	Partial evidence	Brantford, ON, CanadaHQ checked Sep 19, 2026	51-200	34 contacts →
	Partial evidence “Cravo is a 45-year old Canadian, family-run business with 40 years of experience in the design and manufacturing of automatic retractable roof greenhouses, cooling houses and…” Source: RevenueBase Database · checked Sep 19, 2026
9	GGS Greenhouse Structures INC	Partial evidence	Vineland Station, ON, CanadaHQ checked Sep 19, 2026	51-200	32 contacts →
	Partial evidence “Commercial Greenhouses Built to Last GGS has been a world-class designer, manufacturer, and installer of commercial greenhouse structures since 1979 and our greenhouses are built…” Source: RevenueBase Database · checked Sep 19, 2026
10	BC Greenhouse Builders LTD	Indirect evidence	Surrey, BC, CanadaHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
11	Vddo-Qat	Strong evidence	Delson, QC, CanadaHQ checked Sep 19, 2026	51-200	27 contacts →
	Strong evidence “Since its foundation in 1983, VDDO has built a solid reputation as the supplier of choice for ventilation products and air treatment systems to contractors and engineers in the…” Source: RevenueBase Database · checked Sep 19, 2026
12	BW Global	Partial evidence	Abbotsford, BC, CanadaHQ checked Sep 19, 2026	11-50	23 contacts →
	Partial evidence “BW GLOBAL is Western Canada’s largest manufacturer of Greenhouses & Parts established in 1980 with ISO 9001 2015 certification.” Source: RevenueBase Database · checked Sep 19, 2026
13	Provent HCE INC	Partial evidence	Montréal, CanadaHQ checked Sep 19, 2026	51-200	22 contacts →
	Partial evidence “Provent HCE is a leading manufacturer of commercial ventilation.” Source: RevenueBase Database · checked Sep 19, 2026
14	Prins Greenhouses	Partial evidence	Abbotsford, BC, CanadaHQ checked Sep 19, 2026	51-200	21 contacts →
	Partial evidence “Prins Greenhouses is Canada’s premier greenhouse building company with 45 years of experience in providing turn-key greenhouse solutions.” Source: RevenueBase Database · checked Sep 19, 2026
15	Westbrook Greenhouse Systems	Strong evidence	Beamsville, ON, CanadaHQ checked Sep 19, 2026	51-200	16 contacts →
	Strong evidence “Family-owned and operated commercial greenhouse manufacturer specializing in high-quality greenhouse structures, heating systems, and bench solutions.” Source: RevenueBase Database · checked Sep 19, 2026
16	Decloet Greenhouse MFG LTD	Partial evidence	Simcoe, ON, CanadaHQ checked Sep 19, 2026	51-200	14 contacts →
	Partial evidence “DeCloet Greenhouse Mfg Ltd is a transportation/trucking/railroad company based out of STN MAIN, SIMCOE, Ontario, Canada.” Source: RevenueBase Database · checked Sep 19, 2026
17	Ventilation Maximum LTD	Partial evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	51-200	14 contacts →
	Partial evidence “At Ventilation Maximum, we design and manufacture high-performance roof ventilation solutions engineered for Canadian climates.” Source: RevenueBase Database · checked Sep 19, 2026
18	Sun-North Systems LTD	Indirect evidence	Seaforth, ON, CanadaHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
19	Nu-Air Ventilation System INC	Partial evidence	Windsor, NS, CanadaHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Advanced Integrated HVAC Systems Improve energy efficiency, comfort and air quality in homes and buildings while reducing space requirements and costs.” Source: RevenueBase Database · checked Sep 19, 2026
20	Paul Boers Manufacturing	Strong evidence	Vineland Station, ON, CanadaHQ checked Sep 19, 2026	11-50	13 contacts →
	Strong evidence “Manufactures commercial production greenhouses and greenhouse systems.” Source: RevenueBase Database · checked Sep 19, 2026
21	Westland Greenhouse Solutions	Partial evidence	Jordan Station, ON, CanadaHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Our History is our Experience Westland Greenhouse Solutions Inc.” Source: RevenueBase Database · checked Sep 19, 2026
22	Ventec Canada	Indirect evidence	Saint-hyacinthe, QC, CanadaHQ checked Sep 19, 2026	51-200	12 contacts →
	Indirect evidence “Ventec Canada is a company based out of Canada.” Source: RevenueBase Database · checked Sep 19, 2026
23	Venmar Ventilation ULC	Indirect evidence	Drummondville, QC, CanadaHQ checked Sep 19, 2026	201-500	11 contacts →
	Indirect evidence “We are the North American leader in air quality.” Source: RevenueBase Database · checked Sep 19, 2026
24	Agronomic IQ	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	201-500	9 contacts →
	Partial evidence “Agronomic IQ sets the HVAC standard for commercial growers by taking advantage of an all-in-one system to deliver the most precise temperature and humidity control in the…” Source: RevenueBase Database · checked Sep 19, 2026
25	Tessier	Indirect evidence	St-damase, QC, CanadaHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Fort de près de 45 ans d’expérience, Tessier est une entreprise qui fabrique et installe des structures de serres et tunnels chenilles s’adaptant à plusieurs types de climat et…” Source: RevenueBase Database · checked Sep 19, 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: greenhouse ventilation system 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 greenhouse ventilation system companies.
Partial evidence: Its own public description names part of greenhouse ventilation system companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name greenhouse ventilation system 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 76 greenhouse ventilation system companies based in Canada

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Greenhouse ventilation system companies based in Canada at a glance

As of Sep 19, 2026

37.7%Verified-email coverage

16.8Average contacts per company

11-50Median size (employees)

5.3%Largest-city concentration · Leamington

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 76 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 greenhouse ventilation system 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 “greenhouse ventilation system 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 greenhouse ventilation system 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 greenhouse ventilation system 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, 480 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 19, 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 greenhouse ventilation system 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 greenhouse ventilation system companies are there based in Canada?

RevenueBase identified 76 greenhouse ventilation system 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?

Oxygen8, headquartered in Burnaby, tops this list with the largest team on record.

Which city has the most greenhouse ventilation system companies?

Leamington leads with 4 headquartered companies, followed by Montreal (4) and Abbotsford (3).

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 480 verified decision-maker contacts tracked across these 76 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 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 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.