The following are Kooikerhondje Breeders in the USA that breed according to the health and temperament standards set forth by the Vereniging Het Nederlandse Kooikerhondje (Dutch Kooiker Club):.
Jubelend (Alachua, Florida)
Morning Sky (Philadelphia, Pennsylvania)
I wholeheartedly recommend their programs, and would personally have a puppy from any of them!
Perform the required health tests
Breed by taking into account the health pedigrees
Breed to improve structure and temperament
Prove their dogs in various venues
Source their dogs from ethical and reputable breeders in Europe who are in good standing with FCI and the VHNK
Match puppies to appropriate homes