We turn ideas into reality

From early-stage concepts to full-scale production — we help businesses of all sizes bring their plastic components to life. Trusted by global brands — and startups with big ideas.

Plastic injection moulding, tool making and design over 5 sites – manufacturing, office, warehousing and clean room facilities in Greater Manchester, UK.

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Why?

Years manufacturing experience

Customers Worldwide

M+

Parts produced 2024

Who we help

From start-ups to experienced manufacturers, we’ve got you covered.

For product developers and start-ups; if you’re new to manufacturing we’ll guide you every step of the way – from first sketch to finished product. Our in-house design and tooling team will work out how to produce your plastic product, perfectly

Are you an experienced engineering or procurement team? We’re a reliable supplier, producing quality, consistency and efficiency at scale. We measure clients and team members in decades and not single projects.

Product Design and Development

Got an idea but not sure where to begin? We’re here to help turn that into a real, manufacturable plastic product.

Manufacturing and Production

Our state-of-the-art manufacturing facilities (25 to 350 tonne) and skilled team ensure efficient and high-quality plastic injection moulding production to meet your demands.

Quality Assurance and Control

We prioritise quality at every step with rigorous quality control measures in place, ensuring that our plastic products and components meet the highest industry standards.

We Incorporate the Best of the Past and Future

With decades of hands-on manufacturing experience, SGH brings a deep understanding of what works — and why it matters. But we don’t stop there. By combining time-tested techniques with the latest in design tools, automation, and materials, we deliver smarter, more efficient solutions for today’s plastic products. It’s this balance of heritage and innovation that sets SGH apart — helping clients old and new bring their ideas to life with confidence.

Close-up of a robotic arm showcasing advanced technology and innovation in an indoor environment.

Senior artisan in eyeglasses crafting indoors with focus and skill, wearing apron.

47+

Years of Manufacturing
Experience

For over four decades, SGH have been trusted by businesses large and small to deliver reliable, high-quality plastic injection components. That experience means we’ve seen what works, solved complex challenges, and built long-lasting relationships across a wide range of industries. Our team combines deep technical know-how with a practical, problem-solving approach — so whether you’re launching a new product or scaling up production, you’re in capable hands.

Our Partners

Brands & companies we work with.

SGH are proud to support industry-leading brands like JCB and Rockwell Automation — as well as countless innovative startups and growing businesses across the UK.

When clients switch to us, they stay.

Consistent, reliable, and efficient production is at the core of everything we do at SGH.
We implement Total Production Maintenance (TPM) which aims to eliminate equipment breakdowns and associated waste, ultimately improving production efficiency and quality

Our robust quality system tracks inspections at every stage — from moulding through to final dispatch — so nothing is left to chance.

With flexible warehousing solutions, we can hold stock and dispatch components exactly when you need them, picked with precision and delivered on time. And through our Kanban supply chain partnerships, we become more than just a supplier — we become a trusted extension of your operations.

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accreditations and associations

Quality matters

Case Studies

From Dragons Den featured Discrete Heat to JCB, we support new entrants to the market as well as established players.

Dragons Den investors may have passed on the opportunity to work with Discrete Heat, but SGH certainly didn’t. 15 years on, they’ve shown the Dragons don’t always get it right with their innovative thermal skirting board revolutionising home heating, and SGH are proud to be a key supplier of plastic injection moulding in the ThermaSkirt production.

Discrete Heat

With a relationship spanning over 22 years, SGH are very proud to have developed into a key partner for JCB. We are the largest independent supplier of plastics components into JCB, supplying every division in every country around the world with more than 1,000 SKU’s. Consistently high scoring in supplier assessment.

JCB Worldwide