Company lists · Data refreshed September 2026

Top 25 Clerestory window manufacturers based in the United Kingdom

Name: Clerestory window manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 67 companies tracked

RevenueBase identified 67 clerestory window manufacturers headquartered in the United Kingdom as of September 2026 and tracks 434 professional contacts across them, including 164 with verified work emails. London is the largest hub.

This list covers clerestory window manufacturers headquartered in the United Kingdom, 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

67Companies

434Contacts tracked

164Verified emails

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The 25 largest clerestory window manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 67 clerestory window manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to clerestory 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	Glazing Vision	Partial evidence	Diss, United KingdomHQ checked Sep 30, 2026	51-200	74 contacts →
	Partial evidence “Technical experts in the design, manufacture and supply of engineered, architectural glass rooflights for residential and commercial buildings.” Source: RevenueBase Database · checked Sep 30, 2026
2	The Rooflight CO	Partial evidence	Bourton-on-the-water, United KingdomHQ checked Sep 30, 2026	51-200	42 contacts →
	Partial evidence “Offering the UK’s widest selection of high quality rooflights, roof windows and skylights, The Rooflight Co.” Source: RevenueBase Database · checked Sep 30, 2026
3	Whitesales	Indirect evidence	Surrey, United KingdomHQ checked Sep 30, 2026	51-200	39 contacts →
	Indirect evidence “For more than 30 years, Whitesales has been driving innovation in the development of daylighting and roof glazing solutions.” Source: RevenueBase Database · checked Sep 30, 2026
4	Roof Maker	Partial evidence	Leicester, United KingdomHQ checked Sep 30, 2026	51-200	34 contacts →
	Partial evidence “Roof Maker manufactures a suite of patented rooflights, designed to address the most demanding challenges our customers face.” Source: RevenueBase Database · checked Sep 30, 2026
5	Naturalight Systems LTD Naturalight	Indirect evidence	Bedlington, United KingdomHQ checked Sep 30, 2026	51-200	18 contacts →
	Indirect evidence “Here at NaturaLight Systems Ltd, you will find our comprehensive range of Rooflights, Skylights, Structural Glazing, Walkways & Canopies at competitive prices with design &…” Source: RevenueBase Database · checked Sep 30, 2026
6	Arcura	Indirect evidence	Croydon, United KingdomHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “ORIGIN & GROWTH Arcura is a long established family business initially formed in 1986 which quickly impressed the market with its commitment to quality workmanship, quality…” Source: RevenueBase Database · checked Sep 30, 2026
7	Dalcon LTD	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Indirect evidence “We are pleased to announce our expansion in U.K.” Source: RevenueBase Database · checked Sep 30, 2026
8	Sunsquare LTD	Partial evidence	Bury St Edmunds, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “Sunsquare designs and manufactures high-spec, bespoke skylights for professional projects.” Source: RevenueBase Database · checked Sep 30, 2026
9	Ecovia	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	1-10	13 contacts →
	Indirect evidence “Ecovia is a specialist provider of high-performance architectural timber and glazing solutions tailored for discerning architects and contemporary building projects.” Source: RevenueBase Database · checked Sep 30, 2026
10	Next Generation Rooflights	Indirect evidence	Mildenhall, United KingdomHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “With over 50 years of combined experience within the rooflight industry, the Next Generation Rooflights team have worked with some of the leading names in the UK construction…” Source: RevenueBase Database · checked Sep 30, 2026
11	Lamilux U.K. Limited	Indirect evidence	Bury St Edmunds, United KingdomHQ checked Sep 30, 2026	501-1,000	9 contacts →
	Indirect evidence “LAMILUX U.K.” Source: RevenueBase Database · checked Sep 30, 2026
12	Classic Windows	Strong evidence	Stanley, United KingdomHQ checked Sep 30, 2026	11-50	9 contacts →
	Strong evidence “Classic Windows, ‘Manufacturer of Windows and Doors’, has been offering high-quality products and service for almost a quarter of a decade.” Source: RevenueBase Database · checked Sep 30, 2026
13	Contech Conservatory Roof Manufacturers LTD	Strong evidence	Stoke On Trent, United KingdomHQ checked Sep 30, 2026	11-50	5 contacts →
	Strong evidence “Contech is a family-run manufacturer specializing in high-quality conservatory roofs, roof lanterns, tiled roofs, flat roof lights, windows, and doors.” Source: RevenueBase Database · checked Sep 30, 2026
14	Direct Trade Windows LTD	Strong evidence	Slough, United KingdomHQ checked Sep 30, 2026	11-50	4 contacts →
	Strong evidence “Direct Trade Windows are specialist manufacturers of high-end aluminium glazing, based in Slough, and serving Greater London and the South East.” Source: RevenueBase Database · checked Sep 30, 2026
15	MET Therm Windows LTD	Partial evidence	Liss, United KingdomHQ checked Sep 30, 2026	1-10	4 contacts →
	Partial evidence “MET THERM WINDOWS LTD is a Building Materials company located in UNIT 7 RAKE BUSINESS PARK RAKE, LISS, HAMPSHIRE, United Kingdom.” Source: RevenueBase Database · checked Sep 30, 2026
16	Abbey Architectural	Indirect evidence	Derby, United KingdomHQ checked Sep 30, 2026	51-200	3 contacts →
	Indirect evidence “Welcome to our commercial offering from Abbey and Burton Glass.” Source: RevenueBase Database · checked Sep 30, 2026
17	Conessence LTD	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	3 contacts →
	Partial evidence “Timber Windows and Doors, Joinery, Solar Protection” Source: RevenueBase Database · checked Sep 30, 2026
18	Nu-Scene LTD	Strong evidence	Bradford, United KingdomHQ checked Sep 30, 2026	1-10	3 contacts →
	Strong evidence “Nu-Scene manufacture, fabricate and supply a vast range of high-performance aluminium bi-fold doors, sliding doors, windows and roof lanterns direct to trade customers throughout…” Source: RevenueBase Database · checked Sep 30, 2026
19	Ação Suave L Otiima UK Architectural Aspirations	Indirect evidence	Sevenoaks, United KingdomHQ checked Sep 30, 2026	11-50	2 contacts →
	Indirect evidence “Ação suave offer award-winning architectural glass systems, minimalistic glazing and bespoke glazing designs to the super-prime high end residential market.” Source: RevenueBase Database · checked Sep 30, 2026
20	Rooflights & Atriums LTD	Indirect evidence	Manchester, United KingdomHQ checked Sep 30, 2026	1-10	2 contacts →
	Indirect evidence “Homeowners, architects, contractors you’re all welcome here to take a look at what we do, for those that don’t know us we are a friendly local company with over 15 years…” Source: RevenueBase Database · checked Sep 30, 2026
21	Atlas Glazed Roof Solutions	Indirect evidence	Stonehouse, United KingdomHQ checked Sep 30, 2026	51-200	1 contacts →
	Indirect evidence “The Atlas lantern was the first lantern designed with no need for a bulky boss or hood and it's been leading the industry ever since.” Source: RevenueBase Database · checked Sep 30, 2026
22	Roofglaze Commercial	Indirect evidence	St Neots, United KingdomHQ checked Sep 30, 2026	51-200	1 contacts →
	Indirect evidence “Experts in architectural rooflights and roof glazing systems for public & commercial applications Part of the Roofglaze group, Roofglaze Commercial specialises in the design…” Source: RevenueBase Database · checked Sep 30, 2026
23	Fenestration Solutions	Partial evidence	Wirral, United KingdomHQ checked Sep 30, 2026	11-50	1 contacts →
	Partial evidence “Fenestration Solutions is leading the way in window innovation with the introduction of the new Rehau Artevo.” Source: RevenueBase Database · checked Sep 30, 2026
24	Coxdome	Indirect evidence	Blyth, United KingdomHQ checked Sep 30, 2026	11-50	1 contacts →
	Indirect evidence “COXDOME has been providing buildings with daylight and natural ventilation via rooflights since 1954.” Source: RevenueBase Database · checked Sep 30, 2026
25	Abbey Windows & Conservatories LTD	Partial evidence	Maidenhead, United KingdomHQ checked Sep 30, 2026	1-10	1 contacts →
	Partial evidence “With over 40 years combined industry experience, Abbey Windows & Conservatories Ltd pride ourselves on product knowledge, fitting expertise and providing our customers with a…” 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: clerestory 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 clerestory window manufacturers.
Partial evidence: Its own public description names part of clerestory window manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clerestory 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 67 clerestory window manufacturers based in the United Kingdom

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Clerestory window manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

37.8%Verified-email coverage

6.5Average contacts per company

11-50Median size (employees)

13.4%Largest-city concentration · London

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 67 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 clerestory 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 the United Kingdom whose own description of what they do matches “clerestory 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 clerestory 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 clerestory window manufacturers, and records with no verified work email. Companies headquartered outside United Kingdom 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, 164 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 clerestory 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 clerestory window manufacturers are there based in the United Kingdom?

RevenueBase identified 67 clerestory window manufacturers headquartered in the United Kingdom 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?

Glazing Vision, headquartered in Diss, tops this list with the largest team on record.

Which city has the most clerestory window manufacturers?

London leads with 9 headquartered companies, followed by Bradford (2) and Bury St Edmunds (2).

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 164 verified decision-maker contacts tracked across these 67 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.