Company lists · Data refreshed September 2026

Top 16 Architectural window companies based in Toronto, Canada

RevenueBase identified 48 architectural window companies headquartered in Toronto, Canada as of September 2026 and tracks 518 professional contacts across them, including 89 with verified work emails. Across Canada, Toronto is the largest hub for this category.

This list covers architectural window companies headquartered in Toronto, 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
48Companies
518Contacts tracked
89Verified emails
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The 16 largest architectural window companies based in Toronto, Canada

Ranked by team size
Top 16 of 48 architectural window companies based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to architectural window 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceToronto, ON, CanadaHQ checked Sep 30, 2026201-500125 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
2Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 2026201-50049 contacts →

Partial evidence

“Vinyl Window Designs (VWD) is a manufacturer of residential vinyl windows, entry doors and patio doors.”

Source: RevenueBase Database · checked Sep 30, 2026
3Indirect evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-5040 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
4Indirect evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-5017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
5Indirect evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-5014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
6Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-5012 contacts →

Partial evidence

“Preference North America is a software company that has been offering software solutions for the window, door and facade industry since the year 2002 as the official distributor…”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-5012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceToronto, ON, CanadaHQ checked Sep 30, 202651-20010 contacts →

Indirect evidence

“SAUC specializes in the design and manufacture of minimal sliding systems installed globally through our network of trusted partners.”

Source: RevenueBase Database · checked Sep 30, 2026
9Indirect evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-507 contacts →

Indirect evidence

“BOS Glass Inc.”

Source: RevenueBase Database · checked Sep 30, 2026
10Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-506 contacts →

Partial evidence

“Glassopolis is the architectural division of a family glass company that dates back to 1912.”

Source: RevenueBase Database · checked Sep 30, 2026
11Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-505 contacts →

Partial evidence

“Founded in 1961, for over 60 years GEM Windows and Doors has been family-owned and operated by the Christopoulos family, offering a large selection of quality residential and…”

Source: RevenueBase Database · checked Sep 30, 2026
12Indirect evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-504 contacts →

Indirect evidence

“Nupress Facades provides Structural Glass Façade Systems by supplying engineered design, project management and world class machined components for Contract Glaziers with…”

Source: RevenueBase Database · checked Sep 30, 2026
13Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 20261-104 contacts →

Partial evidence

“Division 8 offers affordable, European designed aluminum windows and doors, made right here in Canada.”

Source: RevenueBase Database · checked Sep 30, 2026
14Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-502 contacts →

Partial evidence

“Aluminum & UPVC windows and doors”

Source: RevenueBase Database · checked Sep 30, 2026
15Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 20261-102 contacts →

Partial evidence

“Comfortec Windows and Doors is committed to full customer satisfaction by offering high quality windows and doors, beautiful design and exceptional performance.”

Source: RevenueBase Database · checked Sep 30, 2026
16Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-501 contacts →

Partial evidence

“Established in 2019, RST Windows has become a major threat within the window and wall industry.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 16 of 48 architectural window companies based in Toronto, Canada

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Architectural window companies based in Toronto, Canada at a glance

As of Sep 30, 2026
17.2%Verified-email coverage
10.8Average contacts per company
11-50Median size (employees)
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
22
51-200
2
201-500
2
10001+
1

Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 48 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 architectural window 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 Toronto, Canada whose own description of what they do matches “architectural window 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 architectural window 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 architectural window companies, and records with no verified work email. Companies headquartered outside Toronto 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, 89 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 architectural window 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 architectural window companies are there based in Toronto, Canada?

RevenueBase identified 48 architectural window companies headquartered in Toronto, 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?

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

Which city in Canada has the most architectural window companies?

Toronto leads Canada with 48 headquartered companies, followed by Vaughan (33) and Calgary (32).

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 89 verified decision-maker contacts tracked across these 48 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.