Here’s a list of leading national suppliers of canister vacuum cleaners in the United Kingdom:

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Leading National Suppliers of Canister Vacuum Cleaners in the UK

• Dyson
• Hoover
• Miele
• Vax
• Shark
• Bissell
• Numatic (Henry)
• Electrolux
• Samsung
• AEG ```

These companies are well-known for their innovative designs and technologies in the vacuum cleaner market, especially in the canister segment. If you need further information about a specific company or more details on product offerings, feel free to ask!