Here’s a list of some leading national suppliers of hand-tied furniture springs in the United Kingdom:

```markdown

Leading Suppliers of Hand Tied Furniture Springs in the UK

1. H. D. M. Limited

   • Specializes in furniture components and springs.
   • Website: hdm.co.uk

2. Harrison Spinks

   • Known for high-quality pocket springs and eco-friendly materials.
   • Website: harrisonspinks.co.uk

3. The Spindle Company

   • Offers a variety of furniture springs and components.
   • Website: spindle.co.uk

4. John Lord Ltd

   • A manufacturer and supplier of upholstery materials including springs.
   • Website: johnlordltd.com

5. Dunlopillo

   • Primarily known for mattresses, but also provides associated furniture springs.
   • Website: dunlopillo.co.uk

6. Sofa Workshop

   • Offers bespoke sofa services including hand-tied springs.
   • Website: sofa.com

7. Hugh M. M. Ltd

   • Specialists in upholstery supplies including springs.
   • Website: hughmm.co.uk

8. E. W. W. Partnership

   • Supplies a range of furniture hardware, including springs.
   • Website: ewwpartnership.com

9. B. A. M. R. Ltd

   • Provides various upholstery supplies with a focus on quality.
   • Website: bamrltd.co.uk

10. Willsmore & Co Ltd

    • Known for a variety of upholstery products including springs.
    • Website: willsmoreandco.co.uk ```

Each of these companies has its unique offerings and strengths in the industry. For more specific inquiries or detailed product information, visiting their websites or contacting them directly would be advisable.