Here’s a list of some leading national suppliers of assembly jigs in the United Kingdom:

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Leading Suppliers of Assembly Jigs in the UK

1. Harrison Special Machines

   • Website: harrison-specialmachines.co.uk
   • Specializes in bespoke assembly jigs and automation systems.

2. SMD (Subsea Manufacturing & Design)

   • Website: smd.co.uk
   • Focuses on underwater technology and assembly solutions.

3. MOTIVATED (Motivated Automation)

   • Website: motivatedautomation.com
   • Offers custom-built assembly jigs for various manufacturing needs.

4. Loughborough Manufacturing

   • Website: loughboroughmanufacturing.co.uk
   • Provides precision engineering and assembly jig solutions.

5. Eclipse Engineering Services

   • Website: eclipseengineering.co.uk
   • Offers design and manufacturing of assembly jigs and other engineering solutions.

6. Adept Precision Engineering

   • Website: adeptprecision.co.uk
   • Specializes in precision engineering and custom assembly solutions.

7. SPX FLOW

   • Website: spxflow.com
   • Provides a range of manufacturing and assembly solutions, including jigs.

8. Watt Electrical Mechanical Engineers Ltd.

   • Website: watt-engineering.co.uk
   • Offers bespoke assembly and test jigs designed for specific applications.

9. Fitzgerald Engineering

   • Website: fitzgeraldengineering.co.uk
   • Focuses on manufacturing assembly fixtures and tooling.

10. RDM Engineering

    • Website: rdmengineering.co.uk
    • Provides innovative solutions for assembly and fabrication processes. ```

This list represents a snapshot of companies that are notable in the assembly jig market within the UK. It's advisable to further research each company for specific capabilities, specialties, and the latest innovations they may offer.