Company lists · Data refreshed September 2026

Top 25 Door seal manufacturers based in the United Kingdom

RevenueBase identified 94 door seal manufacturers headquartered in the United Kingdom as of September 2026 and tracks 2,461 professional contacts across them, including 917 with verified work emails. Birmingham is the largest hub.

This list covers door seal 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 16, 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 16, 2026 86% judged on-target in blind review
94Companies
2,461Contacts tracked
917Verified emails
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The 25 largest door seal manufacturers based in the United Kingdom

Ranked by team size
Top 25 of 94 door seal manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to door seal 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceWoking, United KingdomHQ checked Sep 16, 20261,001-5,000661 contacts →

Strong evidence

“We supply high performance fluid sealing products and services, from research and development, manufacture and supply, to plant monitoring, on-site maintenance and seal…”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceRotherham, United KingdomHQ checked Sep 16, 20261,001-5,000592 contacts →

Partial evidence

“AESSEAL designs and manufactures sealing solutions for a sustainable future.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceHampton, United KingdomHQ checked Sep 16, 2026201-500185 contacts →

Partial evidence

“Hallite gives you complete confidence in the performance of your hydraulic cylinders, producing premium seals, wipers and bearings of proven quality, and delivering them across…”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceBradford, United KingdomHQ checked Sep 16, 202651-20092 contacts →

Indirect evidence

“KLINGER is the world's leading sealing solutions and services provider.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceNewton Abbot, United KingdomHQ checked Sep 16, 202651-20070 contacts →

Indirect evidence

“Saving lives and preserving property.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceWorcester, United KingdomHQ checked Sep 16, 202651-20062 contacts →

Indirect evidence

“OBEX Protection Ltd is a global leader in the supply of innovative sealing and protection solutions for commercial glazing and façades.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceBedford, United KingdomHQ checked Sep 16, 202651-20054 contacts →

Indirect evidence

“We are a leading provider of sealing solutions globally.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceBolton, United KingdomHQ checked Sep 16, 202651-20036 contacts →

Partial evidence

“Beldam Crossley is a niche manufacturer of unique sealing and bearing solutions with a solid track record of innovation that spans over a hundred years.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceBristol, United KingdomHQ checked Sep 16, 202611-5030 contacts →

Partial evidence

“We are a manufacturing company specialising in gaskets, washers, seals and heat containment products for all areas of industry.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceManchester, United KingdomHQ checked Sep 16, 202651-20029 contacts →

Indirect evidence

“JA Harrison, an Amcomri Group plc Company - World Class Supplier of Gaskets, Sealing, PTFE and Plastic Technologies J A Harrison & Co boasts an enviable manufacturing heritage…”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceAshington, United KingdomHQ checked Sep 16, 202611-5024 contacts →

Partial evidence

“Eastern Seals (UK) Ltd.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceSheffield, United KingdomHQ checked Sep 16, 202651-20022 contacts →

Partial evidence

“NES is a U.K-based manufacturer dedicated to advancing elastomeric technologies with a truly global reach.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidencePrudhoe, United KingdomHQ checked Sep 16, 202611-5021 contacts →

Partial evidence

“Norseal is a specialist wholesale distributor of intumescent fire and smoke seals.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceChichester, United KingdomHQ checked Sep 16, 202651-20021 contacts →

Partial evidence

“Oldham Seals Group (OSG) is a global leader in high-performance sealing technology, specialising in precision-engineered elastomeric and composite seals.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceAberdeen, United KingdomHQ checked Sep 16, 202611-5021 contacts →

Indirect evidence

“Alba Gaskets is a specialist, independent provider of innovative sealing technology designed to ensure our clients can maintain the very highest levels of asset integrity.”

Source: RevenueBase Database · checked Sep 16, 2026
16Strong evidencePoole, United KingdomHQ checked Sep 16, 202611-5016 contacts →

Strong evidence

“DP Seals manufactures high precision custom seals, gaskets and mouldings for the Aerospace, Subsea Oil & Gas, Medical, Specialist Automotive, Motorsport, Food & dairy and…”

Source: RevenueBase Database · checked Sep 16, 2026
17Strong evidenceStafford, United KingdomHQ checked Sep 16, 202611-5015 contacts →

Strong evidence

“Zero Seal Systems Ltd are specialist hardware suppliers to the architectural ironmongery, partitioning and door manufacturing industry.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceLeicester, United KingdomHQ checked Sep 16, 202611-5014 contacts →

Indirect evidence

“Aeroseals is a leading provider of precision-engineered elastomer solutions for the global aerospace industry.”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceCambridge, United KingdomHQ checked Sep 16, 202651-20013 contacts →

Partial evidence

“Founded 50 years ago, Dixon International Ltd is an award-winning innovator and manufacturer of specialized construction products.”

Source: RevenueBase Database · checked Sep 16, 2026
20Strong evidenceElland, United KingdomHQ checked Sep 16, 202611-5012 contacts →

Strong evidence

“V-Seal Ltd is a leading UK manufacturer of gaskets, seals and laser cut parts, combining over 30 years of industry experience and a worldwide customer base spanning oil, gas and…”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceDroitwich Spa, United KingdomHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceGlasgow, United KingdomHQ checked Sep 16, 202611-5011 contacts →

Strong evidence

“Caledonian Industries specialises in the manufacture of engineering plastics, predominantly seals and rings for the Oil and Gas sector.”

Source: RevenueBase Database · checked Sep 16, 2026
23Strong evidenceLymington, United KingdomHQ checked Sep 16, 202611-5010 contacts →

Strong evidence

“EMI Seals & Gaskets Ltd is a global developer, manufacturer and supplier of custom Sealing and Shielding components (seals, gaskets, bonded washers, foams, sheets, foil masking…”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceHalesowen, United KingdomHQ checked Sep 16, 202611-5010 contacts →

Partial evidence

“Sealco International is the UK’s specialist manufacturer of high-performance sealing solutions for industries where downtime costs millions and reliability is non-negotiable.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceLeamington Spa, United KingdomHQ checked Sep 16, 202611-509 contacts →

Partial evidence

“Robafoam are a specialist company whose technology and expertise is focused on the automatic application of foam seals.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 94 door seal manufacturers based in the United Kingdom

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Door seal manufacturers based in the United Kingdom at a glance

As of Sep 16, 2026
37.3%Verified-email coverage
26.2Average contacts per company
11-50Median size (employees)
7.4%Largest-city concentration · Birmingham
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
33
51-200
16
201-500
3
501-1,000
1
1,001-5,000
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 94 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 door seal 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 “door seal 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 door seal 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 door seal 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, 917 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 16, 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 door seal 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 door seal manufacturers are there based in the United Kingdom?

RevenueBase identified 94 door seal 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?

James Walker, headquartered in Woking, tops this list with the largest team on record.

Which city has the most door seal manufacturers?

Birmingham leads with 7 headquartered companies, followed by Aberdeen (2) and Bristol (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 917 verified decision-maker contacts tracked across these 94 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 16, 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.