Listing of breeders
- Austria (2)
- Brasil (4)
- Bulgaria (1)
- Czech Republic (51)
- Estonia (1)
- Finland (2)
- France (6)
- Germany (15)
- Greece (1)
- Ireland (1)
- Italy (160)
- Latvia (1)
- Lithuania (5)
- Mexico (1)
- Netherlands (3)
- Poland (22)
- Romania (4)
- Russia (6)
- Serbia (1)
- Slovakia (42)
- Spain (17)
- Switzerland (2)
- Ukraine (1)
- United Kingdom (1)
- United States (6)