• 
  Northfield Vets

  Llandysul
• 
  Northvet - Harray

  Orkney
• 
  Northvet - Kirkwall

  Kirkwall
• Northwest Veterinary Specialists

  Runcorn
• 
  Northwich Vets

  Lostock Gralam
• 
  Norwood Road Veterinary

  Lambeth
• 
  Number 1 Vets

  Rugeley
• 
  Nurture Vets - Wells

  Wells
• 
  Nurture Vets - Weston

  Weston-super-Mare
• 
  Nutbourne Veterinary Centre

  Southbourne
• 
  O'Reilly & Fee Armagh Vets

  Armagh
• 
  Oak Barn Vets

  Shalford
• 
  Oak Tree Veterinary Centre

  Edinburgh
• 
  Oakham Vet Hospital

  Oakham
• 
  Oakhouse Vets - Carlton

  Carlton
• 
  Oakhouse Vets - Mapperley

  Arnold
• 
  Oaklands Vet Centre

  Ingleby Barwick
• 
  Oakley Veterinary Clinic

  Caversham
• 
  Oakmount Veterinary Centre

  Burnley
• 
  Oakwood Vets

  Harleston
• 
  Oban Veterinary Surgeons

  Oban
• 
  Ocean Vets - Alderholt

  Alderholt
• 
  Ocean Vets - Three Legged Cross

  Three Legged Cross
• 
  Okeford Veterinary Centre - Okehampton

  Okehampton