Company lists · Data refreshed September 2026

Top 25 Thermoplastic companies based in the United Kingdom

Name: Thermoplastic companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 954 companies tracked

RevenueBase identified 954 thermoplastic companies headquartered in the United Kingdom as of September 2026 and tracks 14,189 professional contacts across them, including 4,896 with verified work emails. London is the largest hub.

This list covers thermoplastic companies 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 22, 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 22, 2026 86% judged on-target in blind review

954Companies

14,189Contacts tracked

4,896Verified emails

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The 25 largest thermoplastic companies based in the United Kingdom

Ranked by team size

Top 25 of 954 thermoplastic companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to thermoplastic companies: 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	Ineos Inovyn	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	1,001-5,000	1,529 contacts →
	Indirect evidence “INEOS Inovyn is Europe's leading producer of vinyls and in the top three worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
2	Victrex	Indirect evidence	Thornton Cleveleys, United KingdomHQ checked Sep 22, 2026	1,001-5,000	642 contacts →
	Indirect evidence “Victrex is a global leader in PEEK and PAEK-based polymer solutions, helping manufacturers overcome complex design and engineering challenges.” Source: RevenueBase Database · checked Sep 22, 2026
3	RPC Group Limited	Indirect evidence	Rushden, United KingdomHQ checked Sep 22, 2026	10001+	552 contacts →
	Indirect evidence “Established in the UK in 1991, RPC is today a global design and engineering company specialising in polymer conversion in packaging and non-packaging markets, with centres of…” Source: RevenueBase Database · checked Sep 22, 2026
4	Innovia Films	Indirect evidence	Wigton, United KingdomHQ checked Sep 22, 2026	1,001-5,000	423 contacts →
	Indirect evidence “Innovia Films is a leading material science pioneer that manufactures base film materials for labels, packaging and graphic flms that will create sustainable and recyclable…” Source: RevenueBase Database · checked Sep 22, 2026
5	CEDO	Indirect evidence	Telford, United KingdomHQ checked Sep 22, 2026	1,001-5,000	385 contacts →
	Indirect evidence “We are Europe’s largest circularity platform for flexible plastic films.” Source: RevenueBase Database · checked Sep 22, 2026
6	Brett Martin LTD	Indirect evidence	Newtownabbey, United KingdomHQ checked Sep 22, 2026	501-1,000	293 contacts →
	Indirect evidence “Established in 1958, Brett Martin is a global player supplying specialist plastic products for the construction, fabrication, and, print and display sectors worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
7	Arburg Limited	Indirect evidence	Warwick, United KingdomHQ checked Sep 22, 2026	n/a	229 contacts →
	Indirect evidence “ARBURG LIMITED is the UK & Ireland subsidiary of ARBURG, one of the world’s leading manufacturers of high-end injection moulding machines for plastics processing.” Source: RevenueBase Database · checked Sep 22, 2026
8	Cubis Systems	Indirect evidence	Lurgan, United KingdomHQ checked Sep 22, 2026	501-1,000	218 contacts →
	Indirect evidence “Cubis Systems offers a faster, greener, and more efficient way to build underground infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
9	Nifco UK Limited	Indirect evidence	Stockton-on-tees, United KingdomHQ checked Sep 22, 2026	501-1,000	207 contacts →
	Indirect evidence “Nifco UK is an Eaglescliffe based car parts manufacturer.” Source: RevenueBase Database · checked Sep 22, 2026
10	Nylacast Group	Indirect evidence	Leicester, United KingdomHQ checked Sep 22, 2026	201-500	165 contacts →
	Indirect evidence “Nylacast Group is a world-leading innovator in the design, development and supply of precision engineered polymer solutions.” Source: RevenueBase Database · checked Sep 22, 2026
11	Siva Group	Indirect evidence	Southampton, United KingdomHQ checked Sep 22, 2026	201-500	161 contacts →
	Indirect evidence “SIVA Group operate at the forefront of our industry.” Source: RevenueBase Database · checked Sep 22, 2026
12	Unipart Polymer And Composite Solutions	Indirect evidence	Portsmouth, United KingdomHQ checked Sep 22, 2026	51-200	147 contacts →
	Indirect evidence “Unipart Polymer and Composite Solutions is a leading provider of high-quality polymer and composite components.” Source: RevenueBase Database · checked Sep 22, 2026
13	RGE Group	Indirect evidence	Huntingdon, United KingdomHQ checked Sep 22, 2026	201-500	123 contacts →
	Indirect evidence “RGE Group is a global manufacturer of plastic injection moulded components, with facilities in the UK, Europe and China.” Source: RevenueBase Database · checked Sep 22, 2026
14	Petainer	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	201-500	116 contacts →
	Indirect evidence “Petainer is a specialist engineering and technology business, an industry leader in the development, design and manufacture of PET (PolyEthylene Terephthalate) plastic containers.” Source: RevenueBase Database · checked Sep 22, 2026
15	Amari Plastics	Indirect evidence	Chertsey, United KingdomHQ checked Sep 22, 2026	201-500	104 contacts →
	Indirect evidence “Amari Plastics is the UK’s leading supplier of plastics and related materials for industry.” Source: RevenueBase Database · checked Sep 22, 2026
16	Polypipe Building Products	Indirect evidence	Doncaster, United KingdomHQ checked Sep 22, 2026	1,001-5,000	98 contacts →
	Indirect evidence “With over 40 years of experience, Polypipe Building Products is the UK's leading provider of innovative plastic piping systems and low-carbon heating solutions for the residential…” Source: RevenueBase Database · checked Sep 22, 2026
17	Distrupol	Indirect evidence	Chertsey, United KingdomHQ checked Sep 22, 2026	51-200	93 contacts →
	Indirect evidence “Distrupol - a member of Omya Performance Polymer Distribution Distrupol is a long established leader with over 60 years of excellence, innovation and expertise in the sales and…” Source: RevenueBase Database · checked Sep 22, 2026
18	Polystar Plastics LTD	Indirect evidence	Northam, United KingdomHQ checked Sep 22, 2026	51-200	93 contacts →
	Indirect evidence “Established over 20 years ago in the heart of the Southampton docklands, Polystar Plastics is now the fastest growing, most respected, independently owned polythene manufacturer…” Source: RevenueBase Database · checked Sep 22, 2026
19	First Circle Packaging Limited	Indirect evidence	Newport Pagnell, United KingdomHQ checked Sep 22, 2026	201-500	91 contacts →
	Indirect evidence “At First Circle Packaging, we create plastic packaging solutions that help brands move faster, work smarter and deliver with confidence.” Source: RevenueBase Database · checked Sep 22, 2026
20	Oadby Plastics LTD	Indirect evidence	Leicester, United KingdomHQ checked Sep 22, 2026	51-200	89 contacts →
	Indirect evidence “We are the UK’s leading independent plastics supplier with over 50 years of experience behind us.” Source: RevenueBase Database · checked Sep 22, 2026
21	Matrix Polymers	Indirect evidence	Liverpool, United KingdomHQ checked Sep 22, 2026	201-500	86 contacts →
	Indirect evidence “Matrix Polymers is a leading global supplier of raw materials to the rotational moulding industry.” Source: RevenueBase Database · checked Sep 22, 2026
22	Symphony Environmental	Indirect evidence	Borehamwood, United KingdomHQ checked Sep 22, 2026	11-50	85 contacts →
	Indirect evidence “Symphony Environmental Technologies plc specializes in developing and marketing a wide range of plastic products and other environmental technologies, and operates worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
23	Ensinger LTD	Indirect evidence	Porth, United KingdomHQ checked Sep 22, 2026	201-500	83 contacts →
	Indirect evidence “Ensinger is a world leader in the field of engineering plastics, excelling in both the manufacture of semi-finished stock shapes and profiles and in the machining of plastic…” Source: RevenueBase Database · checked Sep 22, 2026
24	Fluorocarbon Group	Indirect evidence	Stevenage, United KingdomHQ checked Sep 22, 2026	201-500	76 contacts →
	Indirect evidence “Founded in 1962, Fluorocarbon has grown into a leading global provider of high-performance fluoropolymer components, engineering plastics, and stock shapes.” Source: RevenueBase Database · checked Sep 22, 2026
25	Coba Plastics Group	Indirect evidence	Leicester, United KingdomHQ checked Sep 22, 2026	501-1,000	76 contacts →
	Indirect evidence “COBA’s vision is to be a caring organisation that grows with our people.” Source: RevenueBase Database · checked Sep 22, 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: thermoplastic companies. 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 thermoplastic companies.
Partial evidence: Its own public description names part of thermoplastic companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name thermoplastic companies. 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 954 thermoplastic companies based in the United Kingdom

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Thermoplastic companies based in the United Kingdom at a glance

As of Sep 22, 2026

34.5%Verified-email coverage

14.9Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

357

11-50

366

51-200

143

201-500

501-1,000

1,001-5,000

10001+

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 954 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 thermoplastic companies, 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 “thermoplastic companies”. 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 thermoplastic companies), 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 thermoplastic companies, 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, 4,896 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 22, 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.

Thermoplastic companies by metro

Thermoplastic companies in London36

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 thermoplastic companies, 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 thermoplastic companies are there based in the United Kingdom?

RevenueBase identified 954 thermoplastic companies 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?

Ineos Inovyn, headquartered in Olz, tops this list with the largest team on record.

Which city has the most thermoplastic companies?

London leads with 36 headquartered companies, followed by Manchester (17) and Leicester (15).

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 4,896 verified decision-maker contacts tracked across these 954 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 22, 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.