Welcome to Stephenson Engineering

We take your high-integrity machined components, fabrications and structures from paper to paint within our facility…

Over the past 60 years, we’ve developed a broad and loyal customer base, through offering general engineering services and specialist support to a vast range of customers across various industries.

Specialist in large-scale CNC machined components, welded fabrications and complex structures up to 35 tonnes

Operating from a modern, purpose-built facility, Stephenson Engineering offers an integrated supply chain solution. Our multiple capabilities include; profile flame cutting, coded welding, large capacity CNC machining, NDE, proof-load testing, assembly and coating - all from the same site.

We operate one of the largest capacity sub-contract machining facilities in the UK, and with our team of professional welders, we are leaders in the manufacture of complex components, assemblies and large-scale steel structures.

Our knowledge and capabilities in advanced manufacturing is transferrable across a diverse range industries and sectors - we are an approved supplier to OEMs and leading operators globally, delivering an engineering solution for critical service applications.

Top view of a large industrial machining setup with a person working on a big vertical CNC machine labeled 'STARCUT 250' at Asquith Butler, with various equipment and safety markings around in a factory setting.

Multi-capability manufacturing service

Our innovative turnkey service provides the following benefits:

  • Combining separate specialist services promotes manufacturing efficiency.

  • Class leading expertise, knowledge and capability delivered by all departments.

  • Integrating all manufacturing processes delivers total control over schedule and cost.

  • One point of contact for seamless project management without multiple suppliers and contracts.

  • Operating multiple services reduces transport costs, time and unnecessary packaging.

Quality built in

We have established a robust, repeatable production programme with standardised quality procedures.

  • ISO 9001:2015, ISO 3834 Part 2, ISO 1090 EXC3, ISO 15085.

  • All production processes come under a single quality system.

  • International Welding Engineer lead / Dedicated documentation controllers.

  • Responsible material sourcing with total traceability and records.

A welder wearing protective gear and welding helmet, working inside a metal frame or structure in a workshop.

Our Sectors