Here is a list of leading national suppliers of compact worm gears in the United Kingdom:

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Leading National Suppliers of Compact Worm Gears in the UK

1. Radicon Drive Systems

   • Website: radicon.com
   • Overview: Offers a wide range of gearboxes, including compact worm gears, suitable for various applications in industries such as manufacturing and engineering.

2. Sew-Eurodrive

   • Website: sew-eurodrive.co.uk
   • Overview: A global leader in drive technology, providing innovative gear solutions including compact worm gears for various sectors.

3. Bison Gear & Engineering Corp

   • Website: bisongear.com
   • Overview: Specializes in manufacturing gearboxes, including worm gears, with a focus on efficiency and durability.

4. Worm Gear Drives Ltd

   • Website: wormgeardrives.com
   • Overview: Offers a broad range of worm gear solutions, including compact and bespoke designs tailored to customer specifications.

5. David Brown Santasalo

   • Website: dbsantasalo.com
   • Overview: A prominent provider of geared solutions, including compact worm gear systems for heavy industries.

6. Baldor Electric Company

   • Website: baldor.com
   • Overview: Part of the ABB Group, provides power transmission products, including compact worm gear drives known for their reliability and efficiency.

7. Harmonic Drive UK

   • Website: harmonicdrive.co.uk
   • Overview: Offers precision motion control products, including compact gear systems suitable for robotics and automation.

8. Brevini Power Transmission (part of Dana Incorporated)

   • Website: brevini.co.uk
   • Overview: Supplies a range of geared solutions including worm gear systems aimed at mobile and industrial applications.

9. Gearbox Express

   • Website: gearboxexpress.co.uk
   • Overview: Offers a variety of gearbox solutions, specializing in both standard and custom worm gears.

10. Stock Drive Products (SDP/SI)

    • Website: sdp-si.com
    • Overview: Provides a broad range of mechanical components including compact worm gears designed for various applications. ```

This list represents a mix of companies specializing in compact worm gears in the UK. Make sure to check their websites for the latest product offerings and innovations.