These English companies specialize in plastics manufacturing, ranging from global providers of packaging and specialty films to manufacturers of cable management products and polymer solutions. The list includes established firms like Klöckner Pentaplast, a global provider of rigid and flexible packaging, and Victrex, a leader in PEEK and PAEK-based polymer solutions. Other notable companies are RPC Group Limited, specializing in polymer conversion for packaging, and Zotefoams, a producer of lightweight foams for various industries.
The companies on this list are primarily mid-sized to large firms, with a focus on diverse applications within the plastics sector. A common pattern is the wide geographic spread of headquarters across England, from London and Doncaster to Thornton Cleveleys and Croydon, indicating a distributed industrial base rather than a single cluster.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Klöckner Pentaplastkpfilms.com
Global provider of rigid and flexible packaging and specialty films, focusing on sustainability, product protection, and customer value enhancement. |
1,866 | |||
| 2 |
Polypipegenuitgroup.com
This company shares posts from businesses within the Genuit Group, with a focus on Polypipe products Visit Genuit Group for more information |
744 | |||
| 3 |
Victrexvictrex.com
Global leader in PEEK and PAEK-based polymer solutions, helping manufacturers address engineering challenges and accelerate business success with innovative materials |
731 | |||
| 4 |
RPC Group Limitedamcor.com
A global design and engineering company specializing in polymer conversion for packaging and non-packaging markets, offering tailored solutions worldwide |
580 | |||
| 5 |
Zotefoamszotefoams.com
A global leader in cellular material technology, producing lightweight foams for various industries worldwide, including sports, automotive, healthcare, and military applications |
365 | |||
| 6 |
HellermannTyton Globalhellermanntyton.com
A leading manufacturer of cable management products for various industries, specializing in fastening, fixing, connecting, insulating, and protecting electrical cables Operating globally with custom solutions available |
323 | |||
| 7 |
HellermannTyton United Kingdomhellermanntyton.co.uk
Global leader in fastening, fixing, identifying, and protecting cables and data technology components with innovative supply chain solutions across five continents |
273 | |||
| 8 |
Radius Systemsradius-systems.com
Specializes in designing and manufacturing safe, durable polyethylene pipelines for gas, water, energy, power, and telecom sectors with full lifecycle support. |
219 | |||
| 9 |
Sanko Gosei UK Ltdsanko-gosei.co.uk
A leader in injection mold tools and plastic components for the automotive industry, with a growing global presence and reputation Offering in-house tooling services to OEM and Tier 1 customers |
188 | |||
| 10 |
Aliaxis UKaliaxis.co.uk
The company specializes in creating sustainable systems for water, gas, and energy, while prioritizing customer needs and ensuring peace of mind for future generations |
184 | |||
| 11 |
SIVA Groupsivagroup.co.uk
Leading European manufacturer of technically advanced blown polyethylene films, providing innovative and superior packaging solutions through the application of latest technologies |
183 | |||
| 12 |
Simon Carvesecigrouponline.com
A global process engineering contractor with over 130 years of experience, providing services to various industries such as chemicals, pharmaceuticals, polymers, nuclear, and energy |
147 | |||
| 13 |
SHD Composite Materialsshdcomposites.com
SHD Composite Materials is a manufacturer of prepregs for autoclave, press, and oven curing, with expertise in composites industry and AS9100 accreditation |
124 | |||
| 14 |
Polystar Plastics Ltdpolystar.co.uk
A leading polythene manufacturer offering environmentally friendly products, bespoke packaging solutions, and expert consultation services for various industries in the UK |
121 | |||
| 15 |
OGM: Plastic Injection Moulder and Contract Manufacturerogm.uk.com
Precision plastic injection moulding with design consultancy, prototype tooling, and high-volume production for industrial, electronics, utilities, and medical sectors. |
120 | |||
| 16 |
Jonesco (Preston) Ltdjonesco-plastics.com
Family-run manufacturer in UK and France, with distribution to over 50 countries Specializing in plastic products for commercial vehicles and environmental protection |
67 | |||
| 17 |
Injection Mouldingsinmould.co.uk
Specializing in high-quality moulded products, Injection Mouldings Limited offers solutions in various plastics and engineering polymers, turning unique requests into reality since 1994 |
61 | |||
| 18 |
Hi-Technology Group Limitedhitechltd.com
This company provides design solutions, production tooling, and injection moulding services with a focus on high quality products and customer service |
61 | |||
| 19 |
forteq UKforteq-precision-plastics.com
Global partner specializing in plastic solutions for automotive industry including metal to plastic conversion, tooling, injection molding, gears, and transmission systems. |
58 | |||
| 20 |
Burnetts Manufacturing Limitedburnettsmfg.com
Specialist in technical rubber moulding, providing innovative, faultless rubber, thermoplastic, and silicone components for diverse industries. |
42 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 21 |
TROJAN BATHStrojan-baths.co.uk
A leading European manufacturer of acrylic baths, offering a wide range of high-quality bathroom products, including freestanding, shower, and solid surface baths |
39 | |||
| 22 |
Vital Parts Ltdvital-parts.co.uk
Manufacturer of plastic, rubber, and metal components in Maidstone, Kent Specializing in standard and bespoke solutions, with a focus on customer service and communication |
38 | |||
| 23 |
Big Bear Plastic Products Ltdbigbearplastics.com
Specializing in thermoforming technology, the company designs, prototypes, and produces large and medium-sized plastic parts for various industries using advanced machinery |
35 | |||
| 24 |
Stechford Mouldings Limitedstechfordmouldings.co.uk
A leading manufacturer of precision thermoset and thermoplastic plastic components for various industries, offering full-service molding solutions and quality assurance |
34 | |||
| 25 |
Röchling Industrial (UK) Limited - Gloucesterroechling.com
Specializing in plastics, our company offers machined, extruded, and pultruded profiles, CNC turned and milled parts, and AS9100 accredited micro machining services |
26 | |||
| 26 |
Composites UK - Trade Associationcompositesuk.co.uk
This organization promotes the UK composites industry to support growth and competitiveness in the global market through the use of composite materials |
25 | |||
| 27 |
SI Protech (uk) Limitedsiprotech.co.uk
Specializing in technical injection moulding, product development, and final production for various industries, providing expertise in material selection, mould design, and packaging Serving customers in UK and internationally |
21 | |||
| 28 |
Senior & Dickson Ltdsenior-dickson.co.uk
A family-owned company specializing in manufacturing plastic injection mold tools, pressure die-casting dies, and injection molding services for short runs |
16 | |||
| 29 |
OPTIMOLD LIMITEDuk.com
Specializing in precision injection molding, the company manufactures plastic components for medical equipment with a focus on high quality and accuracy |
13 | |||
| 30 |
Plastic Innovations Ltdpiltd.net
A plastics company based in Daventry, UK specializing in innovative plastic products and solutions |
11 | |||
| 31 |
B2B Injection Moulding Limitedb2binjectionmouldingltd.co.uk
The company specializes in designing and manufacturing plastic components for various industries |
10 | |||
| 32 |
ABG Rubber & Plastics Ltdabgrp.co.uk
A reliable supplier offering high-quality plastic and rubber components, with a focus on customization, technical expertise, and timely delivery A one-stop solution for manufacturing needs |
10 | |||
| 33 |
Etills Limitedetills.com
An independent manufacturing company specializing in rotational moulding, metal fabrication, and laser cutting Emphasizing high quality, UK-made, and environmentally friendly products |
9 | |||
| 34 |
Plastech Solutions Ltdplastechsolutions.co.uk
Plastech Solutions offers cost-effective equipment and services to companies in the UK and Ireland in various market sectors to help them make and save money |
7 | |||
| 35 |
PSR Plasticspsrplastics.co.uk
Provider of engineering plastic components to diverse industries, offering parts made from various materials with CNC capabilities, focusing on quality, reliability, and customer needs |
7 | |||
| 36 |
Technix Rubber & Plastics ltdtechnix-rubber.com
Established in 1989, this UK-based company specializes in manufacturing rubber matting, safety surfacing, fendering, and ground protection products for domestic and international markets |
5 | |||
| 37 |
Osprey Plasticsosprey-plastics.co.uk
A manufacturer of plastic products established in 1947, specializing in the production of various plastic goods |
5 | |||
| 38 |
AV Engineering Services Ltd.aveng.co.uk
Manufacturing high-quality pressure, vacuum, and thermoformed products from plastics with a focus on tooling and production of high-definition mouldings for various industries |
4 | |||
| 39 |
BPFE LTDbpfe.co.uk
Specializing in custom and standard plastic products, we provide high-quality solutions for diverse industries in the UK with exceptional craftsmanship |
2 | |||
| 40 |
SEALING SOLUTIONS Ltd.sealingsolutionsltd.com
Specializing in customized sealing solutions, we manufacture a wide range of hydraulic and pneumatic components up to 2500 mm for various applications |
1 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
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