Top 10 Injection Molding Companies in UK

The UK has long been home to some of the world’s most innovative injection molding companies. These firms specialize in using plastic injection molding to manufacture everything from small precision parts to large automotive components.

With expertise ranging from design and prototype services through to high volume production, the UK’s top injection molding companies enable businesses across industries to bring their product visions to life.

In this guide, as a professional plastic injection molding manufacturer, I’ll be profiling the 10 leading injection molding companies operating in the UK today. For each company, I’ll provide an overview of their capabilities, services, specialties, and more.

I’ve researched widely to identify the most capable and reliable injection molding partners currently active in the country. My rankings are based on factors like years in business, range of services, satisfied customer reviews, industry recognition and awards.

Let’s dive in and explore the top 10 options currently available!

Top 10 Injection Molding Companies in UK

1. Rutland Plastics

Location: Oakham, Rutland

Year Founded: 1956

Employees: 145

Rutland Plastics is my #1 pick for the UK’s top injection molding company. Operating since 1956, they have over 65 years of industry experience under their belt.

Rutland specializes in delivering complete, customized injection molding solutions. Their wide range of services includes everything from initial concept designs and rapid prototyping through to precision CNC machining, injection mold tool building, and eventual mass production of plastic parts.

They possess an enviable range of thermoplastic injection molding machines, enabling them to handle shot sizes ranging from 5 grams right up to 2,500 grams.

Complex multi-shot molding with two or more resins is another Rutland specialty. Parts can be overmolded or feature inserts, achieving enhanced efficiency, strength and aesthetics.

For secondary operations, Rutland handles assembly, printing, painting, ultrasonic welding, leak testing and more in-house, enabling one-stop manufacturing.

With ISO 9001 quality certification, decades of experience serving demanding industries, advanced production technology and positive customer reviews, Rutland Plastics is a premier injection molding partner.

2. Tennants UK

Location: Rochdale, Greater Manchester

Year Founded: 1936

Employees: 150

As the UK’s longest serving injection molding companies, Tennants UK offer over 85 years of plastic manufacturing expertise.

Headquartered in Rochdale, the firm provides complete concept-to-production services for injection, blow and rotational molding. With 150 staff operating their cutting-edge, 65,000 square foot production facility, Tennants delivers exceptional quality and service.

Tennants possesses one of Europe’s largest molding machine stocks, featuring presses from 55 to 2200 metric tonnes. This extensive equipment roster empowers them to handle everything from micro components to extra-large parts with ease.

With comprehensive secondary finishing capabilities also handled in-house, Tennants simplifies sourcing and logistics for customers. Services span sub-assembly, sonic welding, pad printing, leak testing, laser etching and more.

With a strong focus on innovation, sustainability and continuous improvement, multiple long-term customer partnerships spanning decades, and generations of accrued molding proficiency, Tennants UK represents an elite injection molding solution.

3. Transcend Injection

Location: Lostwithiel, Cornwall

Year Founded: 2001

Employees: 60

Transcend Injection have rapidly emerged as one of the most trusted injection molders serving the South West region. Founded in 2001, their 60 strong staff operate from an impressive 30,000 square foot facility in Lostwithiel, Cornwall.

Equipped with 28 molding machines from 33 to 300 metric tonnes, Transcend handles shot volumes spanning 5 grams to 5.5 kilograms. They leverage industry-best Fanuc robots for insert molding automation.

Transcend supports customers from initial concept design through to eventual mass manufacture of net shape thermoplastic parts. With expert mold makers and tool designers on staff, they handle prototype and production tool builds in-house.

The company serves highly regulated sectors like healthcare, engineering, electronics and automotive manufacturing. With ISO certifications for quality, exacting inspection practices and advanced Metrology equipment, they achieve extraordinarily tight tolerances.

Given their cutting-edge production technology, strong quality focus and stellar industry references, Transcend Injection represents an excellent injection molding partner.

4. Flexachem

Location: Runcorn, Cheshire

Year Founded: 1987

Employees: 120

Flexachem are an award-winning, eco-conscious manufacturer of precision plastic injection molded components. They provide services spanning initial concept studies, design for manufacture and tooling development through to eventual mass production.

Flexachem possesses one of Europe’s most advanced production facilities. They operate three separate clean room molding suites, certified from ISO Class 7 to Class 8. An on-site tool room also enables rapid sampling and prototypes to facilitate design optimization.

With experience serving highly demanding sectors like pharmaceuticals, medical, healthcare, electronics and automotive, Flexachem delivers exceptionally intricate, accurate and consistent plastic parts. FDA validation, ISO 13485 and full technical consultancy services provide customers confidence and convenience.

Given their strong quality focus, exacting standards and clean room expertise, Flexachem represents an ideal partner for regulated industries with rigorous production needs.

5. Saint Gobain

Locations: Multiple Sites Across UK

Year Founded: 1665

Employees: Over 167,000 Globally

Saint Gobain first pioneered molten glass molding processes back in the 1600s. Today, as one of Europe’s largest manufacturing corporations, the company brings extensive molding expertise spanning multiple materials and markets.

Across four UK locations, Saint Gobain’s Performance Plastics division provides world-class thermoplastic molding capabilities. Leveraging decades of experience serving aerospace, healthcare, electronics and transportation sectors, their facilities handle advanced injection, compression and blow molding processes.

By combining far-reaching industry expertise with cutting-edge production and tooling technologies, Saint Gobain empowers customers to achieve tighter tolerances, improved part consistency and enhanced efficiency.

For UK enterprises seeking a injection molding partner with tremendous experience achieving high-volume precision at a global scale, Saint Gobain warrants consideration.

6. Multikart Engineers

Location: Wolverhampton, West Midlands

Year Founded: 1976

Employees: 72

In business for over 45 years, Multikart Engineers offer diverse in-house capabilities spanning tool design, mold building, injection molding, blow molding, extrusion, vacuum forming and more.

Headquartered in Wolverhampton, their 70+ employees work across two UK production plants with a combined footprint exceeding 40,000 square foot.

Ongoing investments in advanced molding machinery provide the equipment capability to handle shot sizes from 5 grams to 5 kilograms. With ISO 9001 and ISO 13485 quality certification, Multikart produces extremely precise plastic components for regulated sectors.

Thanks to their integrated facilities and strong process control expertise built over decades, Multikart Engineers offer exceptional quality, service reliability and supply chain flexibility.

7. Spectrum Plastics

Location: Washington, Tyne and Wear

Year Founded: 1990

Employees: 72

Spectrum Plastics Group provide diverse thermoplastic injection molding capabilities across two UK facilities in Washington and Leicester.

In business for over 30 years, Spectrum has established a strong reputation for manufacturing high tolerance, close tolerance and multi-shot injection molded components. Industries served span electronics, automotive, construction and defense.

Leveraging cutting-edge injection molding equipment and highly capable production expertise, Spectrum reliably meets demanding quality standards for technically complex plastic parts. Additional functionality like pad printing, ultrasonic welding, measuring and assembly are also handled in-house.

With Spectrum’s strong focus on precision, high mechanical performance and attention to detail, they represent a very adept injection molder for engineering firms and OEMs with exacting specifications.

8. Haines Plastics

Location: South Woodham Ferrers, Essex

Year Founded: 1982

Employees: 42

A family-owned enterprise launched in 1982, Haines Plastics focus exclusively on assisting startups with concept evaluation, prototyping and bridging to full scale manufacture.

Leveraging decades of experience guiding new product development projects, Haines provide critical insights that help refine early-stage designs for eventual production. With extensive knowledge of optimizing molds for functionality and ease of molding, they help clients accelerate speed-to-market while avoiding unnecessary costs.

Haines possesses advanced simultaneous five axis CNC machining capabilities to produce extremely intricate prototypes. Once designs are finalized, they handle all aspects of mold flow analysis, precision mold tooling fabrication and eventual high volume plastic part manufacture.

Given their specialized expertise guiding startups efficiently from early prototyping to production plastic parts, Haines Plastics represents an excellent niche injection molding partner.

9. PPE Group

Locations: Heywood & Rochdale, Greater Manchester

Year Founded: 1965

Employees: 150

With roots dating back over 55 years, PPE Group offers exceptional breadth of plastic molding capabilities spanning injection, rotational, blow and vacuum forming processes.

Headquartered in Heywood, their 150 staff operate a high output, 75,000 square foot production facility housing over 50 molding machines. Supporting rapid scalability without compromising quality, their operation runs 24 hours a day, 7 days per week.

In addition to precision UK molding services, PPE also operates a production center in Slovakia enabling highly cost competitive EU sourcing options.

With tremendous molding versatility across multiple processes and resins, extensive secondary stage assembly expertise plus global sourcing optionality, PPE Group warrants strong consideration among the UK’s top injection molding companies.

10. fo-am Group

Locations: Tunbridge Wells & Washington, UK

Year Founded: 1972

Employees: 150

fo-am Group consists of two well-established British molders providing advanced polyurethane, epoxy and silicone molding capabilities. Across sites in Tunbridge Wells and Washington, their 150 person team operates some of Europe’s most advanced reaction injection molding equipment.

Capable of handling large shot sizes up to 100 kilograms, fo-am produces intricate molded parts at high volumes for sectors where performance and durability are vital. Major markets served span construction, agriculture, renewables, defense and motorsports.

With niche expertise in structural foam molding, decades of experience driving manufacturing innovations and a solutions-first customer ethos, fo-am Group represents an elite reactive chemistry injection molding specialist operating in Britain.

Baiwe Molding

Baiwe Molding is a top Chinese plastic injection molding manufacturer with over 15 years of experience. Our factory can meet all your needs. Our factory passed the BSCI audit, and our silicone rubber products have been approved by the FDA, SGS, and LFGB. You can trust us to supply your plastic molded products.

As one of the best custom plastic injection molding manufacturers, we focus on improving our production craft with equipment like 3D printers, CNC machines, and other molding equipment. This ensures we can meet your high standards for plastic injection molding projects.

Factors to Consider When Selecting an Injection Molding Partner

With background on 10 of the most highly capable injection molding companies active in Britain today, you’re well equipped to shortlist the leading contenders for your upcoming project.

To further assist with selecting the right molding partner, below are a few key selection criteria to keep in mind:

Services Offered – Look for an injection molder offering end-to-end support, spanning initial design concept reviews through to finished part assembly and secondary processes where required.

Industry Specialties – Target injection molders with proven experience supporting your specific market sector and manufacturing needs. This focused domain expertise brings tremendous value.

Production Scalability – Assess production capacity and scope to handle eventual volumes you project, without compromising responsiveness, quality or pricing.

Quality & Compliance – For regulated sectors, verify all requisite ISO quality management certifications are actively maintained. Also validate compliance with key industry standards.

Equipment & Technology – Ensure cutting-edge injection molding machines and tooling technologies are leveraged to enable precision molding, tight process controls and higher automation. State of the art production technology brings major advantages.

Cost Competitiveness – Beyond basic quote comparisons when initially sourcing injection molding suppliers, consider total cost implications in the context of service ranges, production expertise, reliability and overall customer focus.

Customer References – Don’t underestimate the value of speaking to 1-2 existing clients on reliability, responsiveness and the strength of collaborative problem solving. Glowing references indicate a lot.

Using criteria like this during your injection molding partner selection process will help accurately evaluate providers beyond basic service claims advertised on websites. I hope reviewing the top contenders in Britain here supports those efforts.

Now equipped with background on the country’s premier molding experts, insight into evaluating suppliers and a reliable starting shortlist, securing production services for your next injection molded plastic component project should be smooth and dependable. Best of luck with your search and upcoming manufacturing initiatives!