Company lists · Data refreshed September 2026

Top 25 Steel window manufacturers based in Canada

Name: Steel window manufacturers based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 252 companies tracked

RevenueBase identified 252 steel window manufacturers headquartered in Canada as of September 2026 and tracks 3,567 professional contacts across them, including 1,237 with verified work emails. Toronto is the largest hub.

This list covers steel window 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 30, 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 30, 2026 86% judged on-target in blind review

252Companies

3,567Contacts tracked

1,237Verified emails

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The 25 largest steel window manufacturers based in Canada

Ranked by team size

Top 25 of 252 steel window manufacturers based in Canada, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to steel window 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	State Window Corporation	Partial evidence	Vaughan, ON, CanadaHQ checked Sep 30, 2026	501-1,000	452 contacts →
	Partial evidence “State Window Corporation offers complete design, engineering, manufacturing and installation of custom window wall systems.” Source: RevenueBase Database · checked Sep 30, 2026
2	Starline Windows	Partial evidence	Surrey, BC, CanadaHQ checked Sep 30, 2026	1,001-5,000	246 contacts →
	Partial evidence “Starline Windows has been proudly designing and building windows & balcony doors for over 50 years, providing quality, comfort and peace of mind to our customers.” Source: RevenueBase Database · checked Sep 30, 2026
3	Centra Windows & Install Pros	Partial evidence	Langley, CanadaHQ checked Sep 30, 2026	201-500	170 contacts →
	Partial evidence “From window and door manufacturing, supply, and install to building envelope restorations, Centra Windows & Install Pros does it all.” Source: RevenueBase Database · checked Sep 30, 2026
4	Groupe Lessard	Partial evidence	Laval, QC, CanadaHQ checked Sep 30, 2026	201-500	155 contacts →
	Partial 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 30, 2026
5	Kohltech Windows & Entrance Systems	Strong evidence	Debert, NS, CanadaHQ checked Sep 30, 2026	201-500	135 contacts →
	Strong evidence “Kohltech Windows & Entrance Systems is a leading manufacturer of high-quality, custom window and door products.” Source: RevenueBase Database · checked Sep 30, 2026
6	Alumicor	Strong evidence	Toronto, ON, CanadaHQ checked Sep 30, 2026	201-500	125 contacts →
	Strong evidence “The Alumicor brand is a Canadian-based manufacturer of architectural aluminum windows, curtain wall, storefront, and entrances.” Source: RevenueBase Database · checked Sep 30, 2026
7	LUX Windows & Doors	Partial evidence	Calgary, AB, CanadaHQ checked Sep 30, 2026	201-500	107 contacts →
	Partial evidence “An industry leader in the design, manufacturing and installation of quality windows and doors, Lux is a family-owned and managed business based in Calgary, Alberta, Canada.” Source: RevenueBase Database · checked Sep 30, 2026
8	Brookstone Windows & Doors	Indirect evidence	Windsor, ON, CanadaHQ checked Sep 30, 2026	51-200	76 contacts →
	Indirect evidence “We are a customer obsessed, modern business in a traditional industry.” Source: RevenueBase Database · checked Sep 30, 2026
9	Matrex Window System INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 30, 2026	11-50	68 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
10	Solaris Québec Portes ET Fenêtres INC	Indirect evidence	L'ange-gardien, CanadaHQ checked Sep 30, 2026	201-500	67 contacts →
	Indirect evidence “Solaris Québec portes et fenêtres est renommée pour la qualité supérieure de ses produits, son service personnalisé et la riche expertise de son personnel.” Source: RevenueBase Database · checked Sep 30, 2026
11	Cascadia Windows & Doors	Indirect evidence	Langley, BC, CanadaHQ checked Sep 30, 2026	51-200	65 contacts →
	Indirect evidence “We make sustainable, high performance fiberglass products that help save buildings energy.” Source: RevenueBase Database · checked Sep 30, 2026
12	Ferguson Neudorf Glass INC	Indirect evidence	Beamsville, ON, CanadaHQ checked Sep 30, 2026	201-500	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
13	Alumico Architectural INC	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 30, 2026	51-200	54 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
14	Screenco Manufacturing LTD	Partial evidence	Vaughan, ON, CanadaHQ checked Sep 30, 2026	51-200	52 contacts →
	Partial evidence “Screenco Manufacturing Limited is Canada’s leading manufacturer of high quality rollform and screen products.” Source: RevenueBase Database · checked Sep 30, 2026
15	Fabelta	Indirect evidence	Terrebonne, QC, CanadaHQ checked Sep 30, 2026	51-200	50 contacts →
	Indirect evidence “Fabelta est une entreprise familiale québécoise qui fabrique, vend et installe une vaste gamme de portes d'acier et d'aluminium et des fenêtres en aluminium et hybride, depuis…” Source: RevenueBase Database · checked Sep 30, 2026
16	Altek Portes ET Fenêtres	Indirect evidence	Saint-joseph-de-beauce, QC, CanadaHQ checked Sep 30, 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 30, 2026
17	Prévost	Indirect evidence	Richelieu, QC, CanadaHQ checked Sep 30, 2026	201-500	43 contacts →
	Indirect evidence “Nous sommes un chef de file dans la conception et la fabrication de produits architecturaux d’aluminium haute performance offrant une gamme complète de murs rideaux, fenêtres…” Source: RevenueBase Database · checked Sep 30, 2026
18	Blackline Aluminum	Partial evidence	Markham, ON, CanadaHQ checked Sep 30, 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 30, 2026
19	Maritime Door & Window	Partial evidence	Moncton, NB, CanadaHQ checked Sep 30, 2026	51-200	37 contacts →
	Partial 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 30, 2026
20	Tiltco Architectural	Strong evidence	Newmarket, ON, CanadaHQ checked Sep 30, 2026	11-50	35 contacts →
	Strong evidence “Established in North America in 1988, Tiltco, a Windoworld Group company, plans, designs, manufactures and installs custom European tilt and turn windows, doors and curtain wall…” Source: RevenueBase Database · checked Sep 30, 2026
21	Métautek	Indirect evidence	Mirabel, QC, CanadaHQ checked Sep 30, 2026	51-200	34 contacts →
	Indirect evidence “Métautek est un partenaire de premier plan dans la conception, la fabrication et l’installation de métaux ouvrés et de structures métalliques pour des clients commerciaux…” Source: RevenueBase Database · checked Sep 30, 2026
22	Tradewood Architectural Windows & Doors	Strong evidence	St. Catherines, ON, CanadaHQ checked Sep 30, 2026	51-200	32 contacts →
	Strong evidence “Architectural windows & doors, designed & manufactured to the highest standards of quality by a dedicated team of professionals.” Source: RevenueBase Database · checked Sep 30, 2026
23	DEL Windows And Doors	Strong evidence	Hamilton, ON, CanadaHQ checked Sep 30, 2026	11-50	29 contacts →
	Strong 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 30, 2026
24	Inkan Limited	Indirect evidence	Brampton, CanadaHQ checked Sep 30, 2026	51-200	27 contacts →
	Indirect evidence “Inkan Limited is an Architectural Glass and Metal fabricator located in Brampton, Ontario.” Source: RevenueBase Database · checked Sep 30, 2026
25	Benson Steel	Partial evidence	Bolton, ON, CanadaHQ checked Sep 30, 2026	51-200	26 contacts →
	Partial evidence “Benson Steel Limited is a construction company based out of 72 Commercial Rd, BOLTON, Ontario, Canada.” Source: RevenueBase Database · checked Sep 30, 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: steel window 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 steel window manufacturers.
Partial evidence: Its own public description names part of steel window manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name steel window 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 252 steel window manufacturers based in Canada

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Steel window manufacturers based in Canada at a glance

As of Sep 30, 2026

34.7%Verified-email coverage

14.2Average contacts per company

11-50Median size (employees)

6.7%Largest-city concentration · Toronto

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

104

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 252 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 steel window 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 “steel window 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 steel window 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 steel window 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, 1,237 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 30, 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 steel window 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 steel window manufacturers are there based in Canada?

RevenueBase identified 252 steel window 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?

State Window Corporation, headquartered in Vaughan, tops this list with the largest team on record.

Which city has the most steel window manufacturers?

Toronto leads with 17 headquartered companies, followed by Montreal (14) and Mississauga (12).

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 1,237 verified decision-maker contacts tracked across these 252 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 30, 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.