Company lists · Data refreshed September 2026

Top 25 Insulated glass unit manufacturers based in Canada

Name: Insulated glass unit manufacturers based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 190 companies tracked

RevenueBase identified 190 insulated glass unit manufacturers headquartered in Canada as of September 2026 and tracks 2,267 professional contacts across them, including 858 with verified work emails. Toronto is the largest hub.

This list covers insulated glass unit manufacturers 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 17, 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 17, 2026 86% judged on-target in blind review

190Companies

2,267Contacts tracked

858Verified emails

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The 25 largest insulated glass unit manufacturers based in Canada

Ranked by team size

Top 25 of 190 insulated glass unit manufacturers based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to insulated glass unit manufacturers: 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	Vitrum Glass Group	Partial evidence	Langley, BC, CanadaHQ checked Sep 17, 2026	201-500	189 contacts →
	Partial evidence “Vitrum has been supplying North American customers with top-quality glass products for over 20 years from our head-office and manufacturing facility in Langley, British Columbia…” Source: RevenueBase Database · checked Sep 17, 2026
2	Groupe Prelco	Indirect evidence	Rivière-du-loup, QC, CanadaHQ checked Sep 17, 2026	501-1,000	171 contacts →
	Indirect evidence “Head quartered in Rivière-du-Loup Quebec Canada, Prelco inc.” Source: RevenueBase Database · checked Sep 17, 2026
3	Groupe Lessard	Indirect evidence	Laval, QC, CanadaHQ checked Sep 17, 2026	201-500	155 contacts →
	Indirect evidence “Groupe Lessard is the leader in design, manufacturing and installation of intelligent building envelope systems, with a complete range of doors and windows, curtain walls and…” Source: RevenueBase Database · checked Sep 17, 2026
4	Saand INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	201-500	113 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
5	Cascadia Windows & Doors	Indirect evidence	Langley, BC, CanadaHQ checked Sep 17, 2026	51-200	65 contacts →
	Indirect evidence “We make sustainable, high performance fiberglass products that help save buildings energy.” Source: RevenueBase Database · checked Sep 17, 2026
6	Ferguson Neudorf Glass INC	Indirect evidence	Beamsville, ON, CanadaHQ checked Sep 17, 2026	201-500	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
7	Innotech Windows Doors	Strong evidence	Langley, BC, CanadaHQ checked Sep 17, 2026	51-200	56 contacts →
	Strong evidence “Trusted by architects, building professionals and homeowners, Innotech Windows + Doors manufactures European windows and doors with outstanding thermal insulation, superior air…” Source: RevenueBase Database · checked Sep 17, 2026
8	Unicel Architectural Corp	Indirect evidence	Longueuil, QC, CanadaHQ checked Sep 17, 2026	51-200	53 contacts →
	Indirect evidence “Depuis 60 ans, Unicel Architectural s’est bâti une réputation enviable grâce à ses solutions de pointe en verre/bois et aluminium.” Source: RevenueBase Database · checked Sep 17, 2026
9	Agnora	Partial evidence	Collingwood, ON, CanadaHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “AGNORA is a globally recognized customer service company that fabricates the largest architectural glass in North America.” Source: RevenueBase Database · checked Sep 17, 2026
10	Vitreco - Flynn	Indirect evidence	Laval, QC, CanadaHQ checked Sep 17, 2026	51-200	48 contacts →
	Indirect evidence “Chez Vitreco-Flynn, nous concevons, fabriquons et installons des systèmes intégrés de verre et d'aluminium pour l'enveloppe et l'aménagement intérieur des bâtiments.” Source: RevenueBase Database · checked Sep 17, 2026
11	Altek Portes ET Fenêtres	Indirect evidence	Saint-joseph-de-beauce, QC, CanadaHQ checked Sep 17, 2026	201-500	45 contacts →
	Indirect evidence “Altek portes et fenêtres est une entreprise manufacturière de portes et fenêtres desservant les entrepreneurs en construction.” Source: RevenueBase Database · checked Sep 17, 2026
12	Gamma Murs ET Fenêtres International INC	Indirect evidence	L'ange-gardien, CanadaHQ checked Sep 17, 2026	201-500	43 contacts →
	Indirect evidence “Gamma est un leader dans l'industrie de l'aluminium en Amérique du nord.” Source: RevenueBase Database · checked Sep 17, 2026
13	E1 Doors Glass Metal	Partial evidence	Etobicoke, ON, CanadaHQ checked Sep 17, 2026	51-200	42 contacts →
	Partial evidence “E1 Doors Glass Metal – The Special Forces of Glazing E1 is a full-spectrum glazing company specializing in service, engineered solutions, and complex architectural glazing.” Source: RevenueBase Database · checked Sep 17, 2026
14	Multiver Ltee	Indirect evidence	Quebec, QC, CanadaHQ checked Sep 17, 2026	51-200	41 contacts →
	Indirect evidence “Multiver a débuté en affaires en 1966 comme distributeur de verre.” Source: RevenueBase Database · checked Sep 17, 2026
15	Ferguson Corporation	Indirect evidence	Calgary, CanadaHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “We Build Beauty into Buildings!” Source: RevenueBase Database · checked Sep 17, 2026
16	Laurier Architectural	Indirect evidence	Laurier Station, QC, CanadaHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “LAURIER: 70 ans d'expertise en produits verriers Pour tous vos besoins de fabrication de verre destiné au secteur architectural ou manufacturier, Laurier est le partenaire de…” Source: RevenueBase Database · checked Sep 17, 2026
17	Blackline Aluminum	Partial evidence	Markham, ON, CanadaHQ checked Sep 17, 2026	51-200	39 contacts →
	Partial evidence “Blackline Aluminum delivers innovative, high-performance window wall systems and glass, by combining experienced industry leaders, modern designs, and a state-of-art facility to…” Source: RevenueBase Database · checked Sep 17, 2026
18	Maritime Door & Window	Indirect evidence	Moncton, NB, CanadaHQ checked Sep 17, 2026	51-200	37 contacts →
	Indirect evidence “For over 50 years, through innovation, superior craftsmanship and a relentless commitment to client satisfaction, Maritime Door & Window Ltd has evolved as a valued choice among…” Source: RevenueBase Database · checked Sep 17, 2026
19	Goldray Glass	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	34 contacts →
	Strong evidence “Goldray Glass is a leading manufacturer of architectural decorative glass for both interior and exterior building projects.” Source: RevenueBase Database · checked Sep 17, 2026
20	Glass Canada Limited	Partial evidence	London, ON, CanadaHQ checked Sep 17, 2026	51-200	33 contacts →
	Partial evidence “Glass Canada, based in London, is a highly reputable glazing sub-contractor, specializing in residential, commercial, retail, institutional, and industrial projects, delivering…” Source: RevenueBase Database · checked Sep 17, 2026
21	Phoenix Glass INC	Partial evidence	Delta, BC, CanadaHQ checked Sep 17, 2026	51-200	30 contacts →
	Partial evidence “Phoenix Glass is a commercial glazing contractor and a leader in the building envelope and fenestration industry.” Source: RevenueBase Database · checked Sep 17, 2026
22	DEL Windows And Doors	Partial evidence	Hamilton, ON, CanadaHQ checked Sep 17, 2026	11-50	29 contacts →
	Partial evidence “THE DEL DIFFERENCE: Canadian owned & operated, with over 100 years of combined industry experience in PVC window and insulated steel door manufacturing, DEL Windows & Doors…” Source: RevenueBase Database · checked Sep 17, 2026
23	Tagg Industries	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 17, 2026	51-200	27 contacts →
	Indirect evidence “TAGG provides innovative, high-quality glazing solutions for architects and general contractors in the institutional, commercial and retail markets.” Source: RevenueBase Database · checked Sep 17, 2026
24	Noram Glass	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “Noram Glass is a construction company based out of Canada.” Source: RevenueBase Database · checked Sep 17, 2026
25	Alberta Glass	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	23 contacts →
	Partial evidence “Alberta Glass is a commercial glazing contractor focused on providing excellent aesthetics, performance and energy efficient building envelope solutions for building owners and…” Source: RevenueBase Database · checked Sep 17, 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: insulated glass unit manufacturers. 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 insulated glass unit manufacturers.
Partial evidence: Its own public description names part of insulated glass unit manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name insulated glass unit manufacturers. 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 190 insulated glass unit manufacturers based in Canada

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Insulated glass unit manufacturers based in Canada at a glance

As of Sep 17, 2026

37.8%Verified-email coverage

11.9Average contacts per company

11-50Median size (employees)

7.4%Largest-city concentration · Toronto

Sep 17, 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 worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 190 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 insulated glass unit manufacturers, 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 “insulated glass unit manufacturers”. 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 insulated glass unit manufacturers), 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 insulated glass unit manufacturers, 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, 858 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 17, 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 insulated glass unit manufacturers, 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 insulated glass unit manufacturers are there based in Canada?

RevenueBase identified 190 insulated glass unit manufacturers 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?

Vitrum Glass Group, headquartered in Langley, tops this list with the largest team on record.

Which city has the most insulated glass unit manufacturers?

Toronto leads with 14 headquartered companies, followed by Concord (10) and Calgary (9).

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 858 verified decision-maker contacts tracked across these 190 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 17, 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.