Hi there, take a look at www.Bolognese.org for a list of breeders. The breeder I bought from was www.tenderella-bolognese.com I spoke to quite few breeders and found them all to be very helpful and very passionate about the breed. Hope this helps...
I would suggest you visit a few local shows and seek out breeders there. Or contact the Kennel Club for a list of breeders. They are a lovely breed. Hope you are successful