Company lists · Data refreshed September 2026
Top 25 Sunroom manufacturers worldwide
RevenueBase identified 2,586 sunroom manufacturers worldwide as of September 2026 and tracks 25,893 professional contacts across them, including 7,264 with verified work emails. The United States is the largest market and Norwich the largest hub.
This list covers sunroom manufacturers 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 30, 2026. Country and city lists for sunroom manufacturers 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.
The 25 largest sunroom manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,285 contacts → | ||||
Partial evidence “Milgard Windows & Doors manufactures high-quality, innovative replacement windows and patio doors for home improvement projects as well as new construction windows and patio doors…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 948 contacts → | ||||
Indirect 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 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 373 contacts → | ||||
Partial evidence “All Weather at Home is Canada's largest privately owned window and door manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 314 contacts → | ||||
Indirect evidence “FAKRO is a private company established in Poland in 1991.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 260 contacts → | ||||
Indirect 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 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 257 contacts → | ||||
Indirect 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 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 248 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 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 229 contacts → | ||||
Partial evidence “The Patio Enclosures® brand has been a mainstay in the sunroom industry since 1966.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 202 contacts → | ||||
Indirect evidence “Salamander Industrie-Produkte GmbH and its brand Salamander Window & Door Systems with headquarters in Türkheim/Unterallgäu is one of the leading European quality providers for…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 180 contacts → | ||||
Indirect evidence “Das niedersächsische Familienunternehmen aus Bissendorf bei Osnabrück hat sich in fast 30 Jahren national und international einen Namen gemacht.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 175 contacts → | ||||
Partial evidence “CWS has fabricated high quality windows, doors, and sunroom products designed and constructed for Florida and coastal markets since 1986.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 167 contacts → | ||||
Indirect evidence “Western Window Systems is focused on helping people live better through remarkably beautiful moving glass walls and windows that blend the indoors with the outside.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 150 contacts → | ||||
Indirect evidence “With the vision of our Chairman, Gerard Eadie CBE, CR Smith has grown over the past 50 years to become Scotland’s leading home improvement company.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 147 contacts → | ||||
Indirect evidence “Schipper Kozijnen is een familiebedrijf met 250 betrokken medewerkers.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 136 contacts → | ||||
Indirect evidence “For over thirty years, Viwinco has been manufacturing custom-made, high-performance, beautiful windows and patio doors.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 135 contacts → | ||||
Partial evidence “Kohltech Windows & Entrance Systems is a leading manufacturer of high-quality, custom window and door products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 119 contacts → | ||||
Partial evidence “Based in Vista, Calif, Solatube International Inc, a Kingspan Light + Air, is the worldwide leading innovator, manufacturer and marketer of Tubular Daylighting Devices (TDDs).” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 110 contacts → | ||||
Indirect evidence “Estamos há mais de 67 anos no mercado, entregando soluções em vidro com excelência.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 101 contacts → | ||||
Indirect evidence “INTUS Windows LT is a subsidiary company of INTUS Windows LLC – a company manufacturing high-performing windows and doors that conserve energy, increase thermal performance, and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 101 contacts → | ||||
Indirect evidence “SINCE 1977, WindowRama has established a reputation as the Northeast’s leading window, door, and skylight supplier for homeowners and professionals.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 95 contacts → | ||||
Partial evidence “Our goal is to provide assembled screens to window, door and skylight manufacturers that exceed their requirements for in-house production - but at lower total cost.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 89 contacts → | ||||
Indirect evidence “Corradi designs and produces complete solutions for getting the best value out of residential and commercial outdoor spaces.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 88 contacts → | ||||
Partial evidence “Manufacturer of vinyl replacement windows and patio doors that are expertly designed and skillfully manufactured to provide you with cost-saving energy efficiency, exceptional…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 86 contacts → | ||||
Indirect evidence “Lindsay Windows has been manufacturing energy-efficient new construction and vinyl replacement windows since 1947.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
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: sunroom 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 sunroom manufacturers.
- Partial evidence
- Its own public description names part of sunroom manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sunroom 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 2,586 sunroom manufacturers worldwide
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Sunroom manufacturers worldwide at a glance
As of Sep 30, 2026Companies by employee count
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 sunroom 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.
- Coverage
- Every country. Country and city lists for sunroom manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “sunroom 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 sunroom 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 sunroom manufacturers, 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, 7,264 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.
Sunroom manufacturers by location
10 lists · largest firstEvery Sunroom manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Sunroom manufacturers based in the United States732
- Sunroom manufacturers based in the United Kingdom277
- Sunroom manufacturers based in Germany215
- Sunroom manufacturers based in the Netherlands183
- Sunroom manufacturers based in France151
- Sunroom manufacturers based in Spain115
- Sunroom manufacturers based in Canada108
- Sunroom manufacturers based in Italy99
- Sunroom manufacturers based in Belgium80
- Sunroom manufacturers based in Australia38
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 sunroom 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 sunroom manufacturers are there worldwide?
RevenueBase identified 2,586 sunroom manufacturers 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 sunroom manufacturers?
The United States leads with 732 companies, followed by the United Kingdom (277) and Germany (215). Every sunroom manufacturers list by country and city is linked on this page.
Which city has the most sunroom manufacturers?
Norwich leads with 11 headquartered companies, followed by Chicago (9) and Madrid (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 7,264 verified decision-maker contacts tracked across these 2,586 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.