- The Animal Behaviour Centre
- Association of Dogs and Cats Home
- Association of Pet Dog Trainers
- Battersea Dogs & Cats Home
- Blue Cross
- Canine & Feline Behaviour Association
- Canine Partners
- Carolyn Menteith (Journalist and Dog Trainer)
- Colin Goff
- DDA Watch
- Debbie Connolly
- Deed Not Breed
- Direct Mediation Services
- Doglaw SOS
- Dog Theft Action
- Dogs Trust
- Guild of Dog Trainers
- Kennel Club
- London Dog Behaviour Company
- National Dog Wardens Association
- National Training Inspectorate for Professional Dog Users
- Our Dogs
- People’s Dispensary for Sick Animals
- Pet-id (Microchip)
- Royal College of Veterinary Surgeons
- Royal Society for the Prevention of Cruelty to Animals
- Sarah Fisher
- Sarah Heath
- Vets Get Scanning
- Your Dog Magazine