Company lists · Data refreshed September 2026

Top 25 Filtration equipment manufacturers based in the United Kingdom

Name: Filtration equipment 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 197 companies tracked

RevenueBase identified 197 filtration equipment manufacturers headquartered in the United Kingdom as of September 2026 and tracks 2,193 professional contacts across them, including 924 with verified work emails. London is the largest hub.

This list covers filtration equipment 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

197Companies

2,193Contacts tracked

924Verified emails

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The 25 largest filtration equipment manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 197 filtration equipment 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 filtration equipment 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	Porvair Filtration Group	Strong evidence	Fareham, United KingdomHQ checked Sep 30, 2026	501-1,000	245 contacts →
	Strong evidence “Porvair Filtration Group is a fast-growing, international market leader in the design and manufacture of high performance, specialised components and assemblies for applications…” Source: RevenueBase Database · checked Sep 30, 2026
2	Amazon Filters LTD	Strong evidence	Camberley, United KingdomHQ checked Sep 30, 2026	201-500	144 contacts →
	Strong evidence “Amazon Filters Ltd is one of Europe’s leading filtration equipment manufacturers.” Source: RevenueBase Database · checked Sep 30, 2026
3	AAF AIR Filters	Strong evidence	Cramlington, United KingdomHQ checked Sep 30, 2026	51-200	127 contacts →
	Strong evidence “AAF International, the world’s largest manufacturer of air filtration solutions, operates production, warehousing and distribution facilities in 22 countries across four…” Source: RevenueBase Database · checked Sep 30, 2026
4	Filtermist Limited	Indirect evidence	Telford, United KingdomHQ checked Sep 30, 2026	51-200	102 contacts →
	Indirect evidence “This page is managed and monitored by the Filtermist Marketing Team.” Source: RevenueBase Database · checked Sep 30, 2026
5	Walker Filtration Limited	Strong evidence	Washington, United KingdomHQ checked Sep 30, 2026	201-500	94 contacts →
	Strong evidence “Walker Filtration designs, develops and manufactures a comprehensive range of high quality Compressed Air and Gas Filtration and Drying solutions for a wide range of industrial…” Source: RevenueBase Database · checked Sep 30, 2026
6	Envirogen Group	Partial evidence	Alfreton, United KingdomHQ checked Sep 30, 2026	201-500	75 contacts →
	Partial evidence “Envirogen Group is a global leader in industrial water treatment and process filtration solutions.” Source: RevenueBase Database · checked Sep 30, 2026
7	Siltbuster LTD	Indirect evidence	Monmouth, United KingdomHQ checked Sep 30, 2026	51-200	75 contacts →
	Indirect evidence “At Siltbuster Ltd, we operate the UK’s largest rental fleet of water treatment systems, setting the industry benchmark for rapid, reliable, and cost-effective solutions.” Source: RevenueBase Database · checked Sep 30, 2026
8	Barton Firtop	Partial evidence	Kidderminster, United KingdomHQ checked Sep 30, 2026	51-200	69 contacts →
	Partial evidence “Barton Firtop is the centre of excellence for ‘Strainer and Filtration Technology’.” Source: RevenueBase Database · checked Sep 30, 2026
9	Fileder Filter Systems	Indirect evidence	Maidstone, United KingdomHQ checked Sep 30, 2026	51-200	53 contacts →
	Indirect evidence “In short, we’re 'easy to deal with'.” Source: RevenueBase Database · checked Sep 30, 2026
10	Billi UK	Partial evidence	Wolverhampton, United KingdomHQ checked Sep 30, 2026	51-200	40 contacts →
	Partial evidence “At Billi, we design and manufacture a range of energy efficient filtered water systems that offer our customers the very best in innovation, superior performance and reliability.” Source: RevenueBase Database · checked Sep 30, 2026
11	Axium Process LTD	Partial evidence	Hendy, United KingdomHQ checked Sep 30, 2026	51-200	36 contacts →
	Partial evidence “Axium Process is a ‘one stop’ engineering house providing customised solutions to meet your individual requirements be it for a membrane filtration system to treat your effluent…” Source: RevenueBase Database · checked Sep 30, 2026
12	Filtration Control	Strong evidence	Northampton, United KingdomHQ checked Sep 30, 2026	51-200	32 contacts →
	Strong evidence “For more than three decades, Filtration Control LTD (FCL) has stood at the forefront as the leading manufacturer and distributor in the United Kingdom, specializing in engine air…” Source: RevenueBase Database · checked Sep 30, 2026
13	PSI Global Limited	Partial evidence	Stockton-on-tees, United KingdomHQ checked Sep 30, 2026	51-200	32 contacts →
	Partial evidence “For compressed air & vacuum industries PSI Global manufactures and provides solutions for filters and separators to the compressed air and vacuum industries.” Source: RevenueBase Database · checked Sep 30, 2026
14	Bollfilter UK	Strong evidence	Tolleshunt D'arcy, United KingdomHQ checked Sep 30, 2026	501-1,000	29 contacts →
	Strong evidence “BOLLFILTER is a brand of the renowned BOLL & KIRCH Filterbau GmbH in Germany, a world market leader in providing liquid and gas filtration equipment since 1950, with subsidiaries…” Source: RevenueBase Database · checked Sep 30, 2026
15	Filtrex Global LTD	Indirect evidence	Harlow, United KingdomHQ checked Sep 30, 2026	11-50	24 contacts →
	Indirect evidence “Filtrex Global Ltd specializes in providing solutions for clean air management, from supplying replaceable filter cells for air conditioning and ventilation systems, complete…” Source: RevenueBase Database · checked Sep 30, 2026
16	Allied Filter Systems LTD	Strong evidence	Irlam, United KingdomHQ checked Sep 30, 2026	51-200	23 contacts →
	Strong evidence “Allied Filter Systems Ltd® is the UK’s leading manufacturer & supplier of high-performance liquid filter bags, filter cartridges and filter equipment for process industries.” Source: RevenueBase Database · checked Sep 30, 2026
17	Beta Group LTD	Partial evidence	Bacup, United KingdomHQ checked Sep 30, 2026	51-200	21 contacts →
	Partial evidence “Specialists in Air Filtration & Engineering Services.” Source: RevenueBase Database · checked Sep 30, 2026
18	AIR Filtration Solutions Limited	Strong evidence	Preston, United KingdomHQ checked Sep 30, 2026	11-50	17 contacts →
	Strong evidence “Air Filtration Solutions Ltd - a specialist Air Filter Manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026
19	Westbury Group	Partial evidence	Sandringham Court, United KingdomHQ checked Sep 30, 2026	51-200	16 contacts →
	Partial evidence “Established in 1969, Westbury has become the largest privately owned British air filter manufacturer, with it’s Head Office and Factory based in Burnley Lancashire and additional…” Source: RevenueBase Database · checked Sep 30, 2026
20	Headline Filters Limited	Strong evidence	Aylesford, United KingdomHQ checked Sep 30, 2026	11-50	16 contacts →
	Strong evidence “About Headline Filters Headline Filters is a UK-based manufacturer specialising in high-performance gas and instrument air filtration for critical applications.” Source: RevenueBase Database · checked Sep 30, 2026
21	Filtration LTD	Partial evidence	Bristol, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Partial evidence “Filtration Ltd has been supplying filtration products for over 30 years.” Source: RevenueBase Database · checked Sep 30, 2026
22	Kapwell LTD	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “Kapwell Ltd High-performance separators, engineering solutions.” Source: RevenueBase Database · checked Sep 30, 2026
23	ETL Fluid Experts LTD	Partial evidence	Knaresborough, United KingdomHQ checked Sep 30, 2026	11-50	13 contacts →
	Partial evidence “The home of CARDEV Oil Filtration & Coolant Handling & Recycling, MOTOREX High Performance Metalworking Fluids, Flow Meters & Instrumentation and Condition Monitoring.” Source: RevenueBase Database · checked Sep 30, 2026
24	GVS Filter Technology UK LTD	Partial evidence	Morecambe, United KingdomHQ checked Sep 30, 2026	201-500	12 contacts →
	Partial evidence “The GVS Group is one of the world's leading manufacturers of filters and components for applications in the Healthcare, Life Sciences, Automotive, Appliance, Safety, and…” Source: RevenueBase Database · checked Sep 30, 2026
25	R & B Industrial LTD	Indirect evidence	Andover, United KingdomHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “We provide bespoke application expertise; by focusing upon customer specific requirements and offering appropriate cost effective solutions.” 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: filtration equipment 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 filtration equipment manufacturers.
Partial evidence: Its own public description names part of filtration equipment manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name filtration equipment 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 197 filtration equipment manufacturers based in the United Kingdom

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Filtration equipment manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

42.1%Verified-email coverage

11.1Average contacts per company

11-50Median size (employees)

6.1%Largest-city concentration · London

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

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 197 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 filtration equipment 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 “filtration equipment 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 filtration equipment 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 filtration equipment 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, 924 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 filtration equipment 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 filtration equipment manufacturers are there based in the United Kingdom?

RevenueBase identified 197 filtration equipment 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?

Porvair Filtration Group, headquartered in Fareham, tops this list with the largest team on record.

Which city has the most filtration equipment manufacturers?

London leads with 12 headquartered companies, followed by Nottingham (6) and Morecambe (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 924 verified decision-maker contacts tracked across these 197 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.