The International Stallions Directory already hosts a number of top quality International sires registered with some of the worlds most renown studbooks including the Oldenburg, Hanoverian, Westphalen, Zweibruecken, RPSI, Hessen, Trakehner, ZfDP, KWPN, Bavarian Warmblood, British Warmblood UK, Swedish Warmblood, Swiss Warmblood. Belgium Warmblood, Danish Warmblood as well as the British Stud books Sports Horse Breeder of GB, Anglo European Stud Book (AES), The Scottish Sports Horse British Hanoverian and other recognised registries. providing the mare owner with a valuable source of information, photographs, pedigrees and videos in a single location.