Listing of breeders
- Austria (2)
- Brasil (3)
- Bulgaria (1)
- Czech Republic (48)
- Estonia (1)
- Finland (1)
- France (7)
- Germany (14)
- Greece (1)
- Hungary (1)
- Ireland (1)
- Italy (158)
- Latvia (1)
- Lithuania (5)
- Netherlands (3)
- Poland (20)
- Romania (3)
- Russia (5)
- Serbia (1)
- Slovakia (41)
- Spain (18)
- Switzerland (2)
- Ukraine (1)
- United Kingdom (1)
- United States (6)