Pure Blooded EPIR mastino napolitano kennel:
http://www.geocities.com/mastinoepirpb

Nobledogs Bullmastiff kennels:
http://www.dogs.net.au/nobledogs/default.asp
http://www.freewebs.com/nobledogs/

Kennel Bullbugbear:
http://www.freewebs.com/nobledogs/

Ibraviragazzi, Italy:
http://www.ibraviragazzi.com/

Székely Szentkirályi, Hungary:
http://www.szentkiralyi.atw.hu/

Dynamic Force, Austria:
http://www.turbo.atw.hu/

Dog breeders web directory
http://www.eurobreeder.com/breeds/bullmastiff.html