Company lists · Data refreshed September 2026

Top 25 Skylights and window companies worldwide

RevenueBase identified 6,203 skylights and window companies worldwide as of September 2026 and tracks 71,168 professional contacts across them, including 19,119 with verified work emails. The United States is the largest market and London the largest hub.

This list covers skylights and window companies worldwide, 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 22, 2026. Country and city lists for skylights and window companies follow the table.

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 22, 2026 86% judged on-target in blind review
6,203Companies
71,168Contacts tracked
19,119Verified emails
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The 25 largest skylights and window companies worldwide

Ranked by team size
Top 25 of 6,203 skylights and window companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to skylights and 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
1Indirect evidenceHorsholm, DenmarkHQ checked Sep 22, 202610001+4,962 contacts →

Indirect evidence

“For more than 80 years, the VELUX Group has created better living environments for people around the world; making the most of daylight and fresh air through the roof.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidencePella, IA, RussiaHQ checked Sep 22, 202610001+4,073 contacts →

Partial evidence

“As the #1 most-preferred national window and door brand by homeowners across the country, Pella Corporation leads the industry in innovation and design.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceWarroad, MN, IndiaHQ checked Sep 22, 20265,001-10,0002,650 contacts →

Indirect evidence

“At Marvin, we’re driven to help customers find inspiration and create spaces designed around the way they live.”

Source: RevenueBase Database · checked Sep 22, 2026
4Partial evidenceCincinnati, OH, United StatesHQ checked Sep 22, 20261,001-5,000948 contacts →

Partial evidence

“With over six decades of experience and expertise, Champion Windows and Home Exteriors, a Great Day Improvements brand, is one of the nation’s leading home improvement companies.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceBarranquilla, ColombiaHQ checked Sep 22, 20265,001-10,000654 contacts →

Indirect evidence

“Durante más de 40 años, hemos sido líderes en la industria del vidrio, el metal y las ventanas, siendo la compañía número 1 en América en la fabricación de productos para la…”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceOwatonna, MN, United StatesHQ checked Sep 22, 20261,001-5,000648 contacts →

Indirect evidence

“Viracon is part of Apogee Enterprises, Inc.(NASDAQ: APOG) and is headquartered in Owatonna, Minnesota, From aesthetics to strict environmental and energy specifications, to…”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceWaregem, BelgiumHQ checked Sep 22, 20261,001-5,000529 contacts →

Indirect evidence

“Renson, founded in 1909, is trendsetter in ventilation, sun protection, façade & outdoor living solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
8Partial evidenceVaughan, ON, CanadaHQ checked Sep 22, 2026501-1,000452 contacts →

Partial evidence

“State Window Corporation offers complete design, engineering, manufacturing and installation of custom window wall systems.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceMemphis, TN, United StatesHQ checked Sep 22, 2026501-1,000441 contacts →

Indirect evidence

“For over 150 years, Binswanger Glass has shaped the built environment with award-winning architectural glazing solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceAtlanta, GA, United StatesHQ checked Sep 22, 20261,001-5,000427 contacts →

Partial evidence

“YKK AP America is the North American arm of the global YKK AP Group-an innovation-driven, award-winning manufacturer of commercial façade systems and residential windows and doors.”

Source: RevenueBase Database · checked Sep 22, 2026
11Partial evidenceEdmonton, AB, CanadaHQ checked Sep 22, 20261,001-5,000373 contacts →

Partial evidence

“All Weather at Home is Canada's largest privately owned window and door manufacturer.”

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceMonett, MO, United StatesHQ checked Sep 22, 20261,001-5,000373 contacts →

Partial evidence

“The EFCO brand offers a comprehensive portfolio of architectural windows, curtain walls, storefronts, and entry systems designed for commercial construction needs.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceTangerang, IndonesiaHQ checked Sep 22, 20261,001-5,000347 contacts →

Indirect evidence

“PT YKK AP INDONESIA is a Japan manufacturing company which was established on 1986 and we are one of the companies under YKK Group, consists of another manufacturing industry…”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceCairo, EgyptHQ checked Sep 22, 2026501-1,000338 contacts →

Indirect evidence

“Integrated Façade Solution ® Previously Known as Alico Egypt is one of Orascom Construction’s subsidiaries, A leading Aluminum & Glazing Façade Building Envelope company in Egypt…”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceWausau, WI, United StatesHQ checked Sep 22, 20261,001-5,000332 contacts →

Partial evidence

“After 75 years, Kolbe Windows & Doors is best known for superior quality, custom craftsmanship, and attention to detail.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceDoha, QatarHQ checked Sep 22, 20261,001-5,000316 contacts →

Indirect evidence

“Alutec, Aluminium Technology Auxiliary Industries WLL is a global leader in design, engineering, manufacturing and installation of building envelopes and architectural systems.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceNowy Sącz, PolandHQ checked Sep 22, 20261,001-5,000314 contacts →

Indirect evidence

“FAKRO is a private company established in Poland in 1991.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceNoyal-pontivy, FranceHQ checked Sep 22, 20261,001-5,000284 contacts →

Indirect evidence

“Activité menuiserie de HERIGE Industries, Atlantem propose une gamme complète de produits fabriqués en France couvrant tous les besoins en ouvertures et fermetures pour l’habitat…”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceMinneapolis, MN, United StatesHQ checked Sep 22, 20265,001-10,000275 contacts →

Indirect evidence

“By definition, Apogee means "highest point." It's no coincidence that it's also the name of our company.”

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceHasselt, BelgiumHQ checked Sep 22, 2026501-1,000271 contacts →

Partial evidence

“For more than 48 years, Belisol has been a specialist in windows, doors and sliding doors in PVC, aluminium and wood.”

Source: RevenueBase Database · checked Sep 22, 2026
21Partial evidenceZionsville, IN, United StatesHQ checked Sep 22, 202651-200260 contacts →

Partial evidence

“A pioneering dealer for next-generation windows and eco-friendly building products, Apex Energy Solutions serves homeowners who value and love the place they call home.”

Source: RevenueBase Database · checked Sep 22, 2026
22Partial evidenceMedford, United StatesHQ checked Sep 22, 20261,001-5,000257 contacts →

Partial evidence

“Weather Shield has been committed to making windows and doors the best way we know how- by putting the wants of our customers first.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceDubai Silicon Oasis, United Arab EmiratesHQ checked Sep 22, 2026201-500257 contacts →

Indirect evidence

“Inventure Metal Products LLC is a construction company based out of United Arab Emirates.”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceUnterinn/ritten, ItalyHQ checked Sep 22, 20261,001-5,000248 contacts →

Indirect evidence

“Based in South Tyrol, Italy, Finstral is held by the Oberrauch family, who founded the company in 1969.”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceNorwich, United KingdomHQ checked Sep 22, 2026201-500248 contacts →

Indirect evidence

“First Home Improvements traces its roots to the 1970's and prides itself on installing highly innovative A rated energy saving products unrivaled by many others within our…”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 6,203 skylights and window companies worldwide

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Skylights and window companies worldwide at a glance

As of Sep 22, 2026
26.9%Verified-email coverage
11.5Average contacts per company
11-50Median size (employees)
0.7%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
2,713
11-50
2,184
51-200
816
201-500
197
501-1,000
70
1,001-5,000
62
5,001-10,000
10
10001+
11

Email recency is reported on each country list linked below.

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 skylights and 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.
Coverage
Every country. Country and city lists for skylights and window companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “skylights and 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 skylights and 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 skylights and window companies, and records with no verified work email.
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, 19,119 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 22, 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.

Skylights and window companies by location

21 lists · largest first

Every Skylights and window companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 skylights and 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 skylights and window companies are there worldwide?

RevenueBase identified 6,203 skylights and window companies worldwide 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?

VELUX, headquartered in Horsholm, tops this list with the largest team on record.

Which country has the most skylights and window companies?

The United States leads with 1,154 companies, followed by Germany (715) and the United Kingdom (519). Every skylights and window companies list by country and city is linked on this page.

Which city has the most skylights and window companies?

London leads with 45 headquartered companies, followed by New York (26) and Sao Paulo (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 19,119 verified decision-maker contacts tracked across these 6,203 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 22, 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.