Here is a list of leading national suppliers of tubular handles in the United Kingdom:

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Leading National Suppliers of Tubular Handles in the UK

1. SJonathan

   • Website: sjonathan.co.uk

2. Blum UK Ltd

   • Website: blum.com

3. Häfele UK Ltd

   • Website: hafele.co.uk

4. Door Handle Warehouse

   • Website: doorhandlewarehouse.co.uk

5. L. M. Dorrington (Handles)

   • Website: lmdorrington.co.uk

6. IronmongeryDirect

   • Website: ironmongerydirect.co.uk

7. WDS Component Parts Ltd

   • Website: wdscomponentparts.co.uk

8. B&Q (Kingfisher plc)

   • Website: diy.com

9. Toolstation

   • Website: toolstation.com

10. Screwfix

    • Website: screwfix.com ```

Feel free to ask for more specific information or insights about any of these suppliers or the tubular handle market in general!