Who are we?

Founded in 1972 by our Managing Director’s Father Peter Marsden, P S Marsden (Precision Engineers) Ltd, (PSM) has been providing manufacturing services for five decades.

PSM began manufacturing and regrinding form tools and with continual investment, has become a strategic collaborative first choice supplier to leading organisations. PSM share best practice and provide an extended supply chain to the benefit of all interested parties.

PSM specialises in precision sub-contract machining services for the UK and European markets, supplying mechanical test pieces, precision machined components, kits and mechanical assemblies, to leading organisations in the Aerospace, Nuclear, Defence, Motorsport and Power Generation markets.

To strengthen our reliable performance in the manufacture of precision components, we offer a unique complete flexible machining facility, able to produce 1 off prototypes to multiples of 1,000’s.

PSM’s key focus is on enhancing customer satisfaction through customer focus, an engaged team, compliance to relative requirements and continual improvement. This has proven to be the driving force behind our ongoing success.

Our Mission

What we do
Manufacture high quality precision components and material test specimens, delivering cost effective engineering solutions.

How we do it

  • Family, friendly open door culture
  • Continued investment in modern technology
  • Highly skilled engaged workforce within a safe environment
  • Procurement Management
  • Environmentally conforming facility

Why we do it

  • Providing customer services, support and value for money
  • Sustained stable employment

Our Values

  • Communication
  • Collaboration
  • Sharing information/knowledge
  • Consideration and understanding
  • One team
  • Fellow workers, people, management
  • Rules and regulations
  • Product
  • Environment around you
  • Health & safety of fellow workers / well being
  • Responsible
  • Ethical behaviour
  • Doing it right
  • Trust, Honesty, Openness
  • Reliability
  • Work lean/Shared cost saving
  • Driven/Focused/Self motivated
  • Creative work ethic
  • Promotion of good practice
  • Well organised/methodical

Our Vision

What we want to be
  • To be the best in the field of our expertise
How do we get there
  • Partnerships with suppliers and collaboration with customers
  • Continual improvement
  • Sustained investment
  • Explore new opportunities and initiatives
  • and …………….. HARD WORK!


“Quality Is the Culture” is at the heart of our organisation and we pride ourselves on the exceptional level of quality and precision that we deliver to our customers. It is that determined commitment to quality that has helped secure customer approvals and accreditation to international standards.

Continual improvement, continued investment, collaboration with customers, leading Universities and industry, on-going engagement, training and development for our team will continue to contribute to our customers and our own growth and success.

Business Management System

Our established integrated Business Management System, (BMS) is controlled by a dedicated quality team. The continued investment in people, processes and equipment ensures that our team is frequently assessing our practices to verify that each process is operating efficiently to generate the very highest level of quality. Recognised for this commitment, we are fully accredited to both EN 9100:2018 & BS EN ISO 9001:2015.

Environmental & Health & Safety

Operating in a safe, secure and healthy environment is a right for our team and we believe that being aligned with health and safety obligations is paramount. We enlist the professional services of Ellis Whittam whose consultants support our in-house H&S team. We take a hands on approach to managing and frequently reviewing our working practices, to ensure that we adhere to the industry standards for HSE. Recognised for this commitment to environmentally friendly working practices.


Bureau Veritas Certification

Quality Assurance

Cyber Essentials – Certificate of Assurance


H & S Policy

Health & Safety

Brochure – Precision Engineering


Brochure – Specimens


Capacity List


Quality & Environmental Policy

Policies & Terms

Certificate of Approval

Quality Assurance

Terms for Goods Services

Policies & Terms