Why?
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.
See our FAQ’s for answers to more specific information you might be looking for.
Why Us
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.
See the Services we offer.
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.
See the Industries we work with.
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.
As part of our ongoing support, we work with the JCB UK design team on polymer selection, Design for Manufacture reviews (DFM), and tooling layout. We also run a fully equipped warehouse solution for JCB with regular weekly drops to run along side their JIT / Kanban system thus removing cost and overheads from the JCB group.
We are rated top 20 percentile globally within their continuous supplier assessment.
In a 2025 supplier assessment and audit at SGH’s facilities in Bolton, the assessors from Poland stated ‘We needed to come and visit SGH in person; we have gone through our records and there are no quality defects or claims on your record. Not figuratively, but literally. You are our best performing supplier” SGH has been invited to Poland to discuss expanding the SKU line as a result.
We are very proud of audits and relationships like this. It’s not a one-off, we consistently score as a top supplier in the national and multi-national businesses we work with over multi-year or decade relationships.
During the difficult times witnessed due to Covid, SGH were able to react quickly setting up dedicated supply cells and moving the facility to a twin shift 5 days a week to support the urgent needs of components for Oxylitre’s manufacturing facility in Manchester, and ensuring the increase demand was met without delays.
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.
accreditations and associations
Quality matters
