| PREOSSIA | Prestwick-Beresford Old-Style Siamese Breed Preservation Society |
| OSSC | Old-Style Siamese Club, in Great Britain |
| TICA | The International Cat Association - the first major association to approve the Thai as a preliminary new breed. |
ALFA FELIS |
The first TICA Club in Finland. |
TICA show calendar TICA EN show calendar |
| HETI | Society for Canine Genetic Health and Ethics - important knowledge also for cat breeders and fanciers. |