Company lists · Data refreshed October 2026

Top 13 Instrument windows suppliers based in the United Kingdom

RevenueBase identified 29 company matches for instrument windows suppliers associated with the United Kingdom as of October 2026 and tracks 246 professional contacts across them, including 105 with verified work emails. Cambridge is the largest hub.

This list covers company matches for instrument windows suppliers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 27, 2026 How this list was built
29Companies
246Contacts tracked
105Verified emails
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The 13 largest instrument windows suppliers based in the United Kingdom

Ranked by team size
Top 13 of 29 company matches for instrument windows suppliers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBirmingham, United KingdomHQ recorded Oct 27, 202651-20042 contacts →

Exact match

“Thermoseal Group Limited is a supplier to the window industry, supplying a range of over 2,500 insulated glass (IG) components and a range of machinery used for manufacturing IG…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
2Exact matchHarrietsham, United KingdomHQ recorded Oct 27, 202611-5032 contacts →

Exact match

“Here at Knight Optical, we enable pioneers to harness the power of photonics.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
3Exact matchBexhill-on-sea, United KingdomHQ recorded Oct 27, 202611-5026 contacts →

Exact match

“Torr Scientific Limited is an innovative company that brings together a unique range of expertise, skills and equipment from the worlds of thin film vacuum coating, vacuum…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
4Exact matchCambridge, United KingdomHQ recorded Oct 27, 202611-5021 contacts →

Exact match

“Comar Optics has over 40 years of experience in suppling custom optical components and assemblies for OEMs.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
5Exact matchLeighton Buzzard, United KingdomHQ recorded Oct 27, 202611-5016 contacts →

Exact match

“GPE Scientific Ltd was established in 1962 and is a leading distributor and manufacturer of laboratory equipment, glassblowing products and specialised glass components for the…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
6Exact matchRoss-on-wye, United KingdomHQ recorded Oct 27, 2026201-50015 contacts →

Exact match

“At REHAU, we understand that our customers want windows that are not only high-quality, safe and stylish, but also innovative and eco-friendly.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
7Exact matchPoole, United KingdomHQ recorded Oct 27, 202611-5011 contacts →

Exact match

“Crystran Ltd is a manufacturer and supplier of high quality optical components.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 27, 202611-508 contacts →

Exact match

“The company is an expert in manufacturing, supplying and installing innovatively designed windows and doors.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
9Exact matchWhitstable, United KingdomHQ recorded Oct 27, 20261-106 contacts →

Exact match

“Passivlux has been established with the specific purpose of supplying high-quality performance windows and doors to all sectors of the construction industry.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
10Exact matchSt Albans, United KingdomHQ recorded Oct 27, 202611-505 contacts →

Exact match

“Elliot Scientific is a major supplier of Opto-Mechanic, Laser, Cryogenic, Magnetic and other systems and components to Science, Research and Industry.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
11Exact matchKnutsford, United KingdomHQ recorded Oct 27, 20261-104 contacts →

Exact match

“PeplerOptics is a specialist distributor of optical instruments for use in industry, laboratories, education and at home.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
12Exact matchCumbernauld, United KingdomHQ recorded Oct 27, 202611-503 contacts →

Exact match

“Architectural Doors & Windows Ltd were founded in 2002 with the vision of bringing the best windows & doors that Europe has to offer to the Scottish market.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
13Exact matchCb24, United KingdomHQ recorded Oct 27, 202611-502 contacts →

Exact match

“UQG Optics Ltd is a UK-headquartered optical components manufacturer.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase

Showing 13 of 29 instrument windows suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 105 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Instrument windows suppliers based in the United Kingdom at a glance

As of Oct 27, 2026
42.7%Verified-email coverage
8.5Average contacts per company
1-10Median size (employees)
6.9%Largest-city concentration · Cambridge
Oct 27, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
9
51-200
2
201-500
2

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 29 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “instrument windows suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 105 professional contacts with verified work emails across the full matched dataset. 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 October 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “instrument windows suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many instrument windows suppliers are there based in the United Kingdom?

RevenueBase identified 29 company matches for instrument windows suppliers associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Thermoseal Group Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most instrument windows suppliers?

Cambridge leads with 2 company records, followed by London (2) and Berwick Bassett (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 105 professional contacts with verified work emails tracked across these 29 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 27, 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 SmartSearch, 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.