Company lists · Data refreshed September 2026

Top 25 Sealing and gasket manufacturers based in the United Kingdom

Name: Sealing and gasket 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 17, 2026 260 companies tracked

RevenueBase identified 260 sealing and gasket manufacturers headquartered in the United Kingdom as of September 2026 and tracks 3,560 professional contacts across them, including 1,367 with verified work emails. Birmingham is the largest hub.

This list covers sealing and gasket 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 17, 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 17, 2026 86% judged on-target in blind review

260Companies

3,560Contacts tracked

1,367Verified emails

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The 25 largest sealing and gasket manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 260 sealing and gasket manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to sealing and gasket 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	James Walker	Strong evidence	Woking, United KingdomHQ checked Sep 17, 2026	1,001-5,000	661 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 17, 2026
2	Aesseal	Strong evidence	Rotherham, United KingdomHQ checked Sep 17, 2026	1,001-5,000	592 contacts →
	Strong evidence “AESSEAL designs and manufactures sealing solutions for a sustainable future.” Source: RevenueBase Database · checked Sep 17, 2026
3	Cross Manufacturing Company 1938 LTD	Partial evidence	Bath, United KingdomHQ checked Sep 17, 2026	501-1,000	209 contacts →
	Partial evidence “Cross is a world leading manufacturer of aerospace seals, aircraft piston rings and custom seal rings for aircraft engines, steam turbines, vehicle turbochargers, control valves…” Source: RevenueBase Database · checked Sep 17, 2026
4	Hallite Seals	Indirect evidence	Hampton, United KingdomHQ checked Sep 17, 2026	201-500	185 contacts →
	Indirect 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 17, 2026
5	Klinger United Kingdom	Partial evidence	Bradford, United KingdomHQ checked Sep 17, 2026	51-200	92 contacts →
	Partial evidence “KLINGER is the world's leading sealing solutions and services provider.” Source: RevenueBase Database · checked Sep 17, 2026
6	R&g Fluid Power Group LTD	Partial evidence	Preston, United KingdomHQ checked Sep 17, 2026	201-500	60 contacts →
	Partial evidence “Based in Lancashire, R&G Fluid Power Group is the parent company of numerous companies within industrial, sealing, hydraulic and pneumatic solutions across the UK.” Source: RevenueBase Database · checked Sep 17, 2026
7	Ceetak LTD Sealing Solutions	Partial evidence	Bedford, United KingdomHQ checked Sep 17, 2026	51-200	54 contacts →
	Partial evidence “We are a leading provider of sealing solutions globally.” Source: RevenueBase Database · checked Sep 17, 2026
8	Vulcan Seals	Strong evidence	Sheffield, United KingdomHQ checked Sep 17, 2026	501-1,000	46 contacts →
	Strong evidence “Vulcan Seals - a leading manufacturer and supplier of- Mechanical Seals - FEP/PFA Encapsulated 'O'-Rings & Seals - Gland Packing - Expanded PTFE Gasketing Global Presence…” Source: RevenueBase Database · checked Sep 17, 2026
9	Vip-Polymers LTD	Strong evidence	Huntingdon, United KingdomHQ checked Sep 17, 2026	51-200	38 contacts →
	Strong evidence “VIP-Polymers are World Class provider of Globally approved sealing gaskets.” Source: RevenueBase Database · checked Sep 17, 2026
10	Lonestar Leeds	Partial evidence	Leeds, United KingdomHQ checked Sep 17, 2026	51-200	37 contacts →
	Partial evidence “LoneStar Leeds is a leading provider of precision engineered components, sealing technologies and specialised surface coatings to the world’s Oil & Gas, Petrochemical, Power…” Source: RevenueBase Database · checked Sep 17, 2026
11	Beldam Crossley	Strong evidence	Bolton, United KingdomHQ checked Sep 17, 2026	51-200	36 contacts →
	Strong 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 17, 2026
12	Nicholsons Sealing Technologies	Strong evidence	Stanley, United KingdomHQ checked Sep 17, 2026	51-200	36 contacts →
	Strong evidence “Global specialists in the design and manufacture of high temperature metal seals & gaskets.” Source: RevenueBase Database · checked Sep 17, 2026
13	Ramsay Rubber & Plastics LTD	Strong evidence	Bilston, United KingdomHQ checked Sep 17, 2026	51-200	32 contacts →
	Strong evidence “Ramsay are a UK solution-based manufacturer for custom gaskets, mouldings, sealing, adhesive tapes, protection, and packaging products.” Source: RevenueBase Database · checked Sep 17, 2026
14	Avon Group Manufacturing LTD	Partial evidence	Bristol, United KingdomHQ checked Sep 17, 2026	11-50	30 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 17, 2026
15	Techsil LTD	Indirect evidence	Bidford-on-avon, United KingdomHQ checked Sep 17, 2026	11-50	29 contacts →
	Indirect evidence “TECHSiL® - Suppliers of Industrial Sealants, Adhesives and Tapes TECHSiL® are industrial suppliers of RTV silicone, adhesives, sealants, encapsulants, conformal coatings, casting…” Source: RevenueBase Database · checked Sep 17, 2026
16	JA Harrison & CO LTD	Strong evidence	Manchester, United KingdomHQ checked Sep 17, 2026	51-200	29 contacts →
	Strong 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 17, 2026
17	Hodgson Sealants	Partial evidence	Beverley, United KingdomHQ checked Sep 17, 2026	51-200	28 contacts →
	Partial evidence “Who we are Hodgson Sealants are the largest independent sealant manufacturer in the UK.” Source: RevenueBase Database · checked Sep 17, 2026
18	Roxtec UK & Ireland	Partial evidence	Bury, United KingdomHQ checked Sep 17, 2026	11-50	26 contacts →
	Partial evidence “We provide cable and pipe sealing solutions for a wide range of applications within many different industries.” Source: RevenueBase Database · checked Sep 17, 2026
19	TRP Polymer Solutions Limited	Indirect evidence	Hereford, United KingdomHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect evidence “TRP Polymer Solutions, est.” Source: RevenueBase Database · checked Sep 17, 2026
20	Eastern Seals UK LTD	Indirect evidence	Ashington, United KingdomHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “Eastern Seals (UK) Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
21	Superior Seals LTD	Partial evidence	Wimborne, United KingdomHQ checked Sep 17, 2026	51-200	22 contacts →
	Partial evidence “As a leading manufacturer of high integrity o-rings and seals; every day at Superior we renew our commitment to a culture of continuous improvement in the design, manufacture and…” Source: RevenueBase Database · checked Sep 17, 2026
22	NES	Partial evidence	Sheffield, United KingdomHQ checked Sep 17, 2026	51-200	22 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 17, 2026
23	Oldham Seals Group	Partial evidence	Chichester, United KingdomHQ checked Sep 17, 2026	51-200	21 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 17, 2026
24	SBR Southbourne Rubber	Partial evidence	Waterlooville, United KingdomHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “SBR is a lean, agile, customer focused, highly responsive manufacturer of rubber and silicone mouldings and extrusions.” Source: RevenueBase Database · checked Sep 17, 2026
25	Alba Gaskets	Strong evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	11-50	21 contacts →
	Strong 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 17, 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: sealing and gasket 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 sealing and gasket manufacturers.
Partial evidence: Its own public description names part of sealing and gasket manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sealing and gasket 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 260 sealing and gasket manufacturers based in the United Kingdom

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Sealing and gasket manufacturers based in the United Kingdom at a glance

As of Sep 17, 2026

38.4%Verified-email coverage

13.7Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · Birmingham

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

114

11-50

51-200

201-500

501-1,000

1,001-5,000

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 260 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 sealing and gasket 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 “sealing and gasket 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 sealing and gasket 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 sealing and gasket 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, 1,367 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 17, 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 sealing and gasket 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 sealing and gasket manufacturers are there based in the United Kingdom?

RevenueBase identified 260 sealing and gasket 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 sealing and gasket manufacturers?

Birmingham leads with 10 headquartered companies, followed by London (7) and Leeds (5).

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 1,367 verified decision-maker contacts tracked across these 260 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 17, 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.