The Dogue de Bordeaux is one of the most ancient French breeds. He is a typical brachycephalic molossoid type. He is a very powerful dog, with a very muscular body yet retaining a harmonious general outline.

The sleek, no-frills German Pinscher is among Germany’s oldest breeds and the prototype of other pinscher breeds. This energetic, super-intelligent dog was at first used as a rat catcher but can be trained for all types of canine work.  

The Giant Schnauzer is a larger and more powerful version of the Standard Schnauzer, and he should, as the breed standard says, be a “bold and valiant figure of a dog.” Great intelligence and loyalty make him a stellar worker and companion.

The easygoing Great Dane, the mighty “Apollo of Dogs,” is a total joy to live with—but owning a dog of such imposing size, weight, and strength is a commitment not to be entered into lightly. This breed is indeed great, but not a Dane.

The Great Pyrenees is a large, thickly coated, and immensely powerful working dog bred to deter sheep-stealing wolves and other predators on snowy mountaintops. Pyrs today are mellow companions and vigilant guardians of home and family.

The Greater Swiss Mountain Dog is a large, immensely strong worker famous for a dense coat of striking black, red, and white markings. Dependable and faithful Swissies earned their feed as herders, drafters, and all-around pasture dogs.

A powerfully large Hungarian flock guardian covered in profuse white cords from head to tail, the Komondor is among the world’s most recognizable breeds. The independent and protective Kom requires a firm, experienced hand at training.

The Kuvasz is Hungary’s majestic guardian breed and hunting companion of kings. A working dog of larger size, the imposing, white, thickly-coated Kuvasz is beautiful, intelligent, independent and profoundly loyal.

The Leonberger is a lush-coated giant working dog breed of German origin. They have a gentle nature and serene patience and they relish the companionship of the whole family.

A Mastiff is a large and powerful dog in the Working Group. Mastiffs are among the largest dogs, and typically have a short coat a long low-set tail and large feet; the skull is large and bulky, the muzzle broad and short, and the ears drooping and pendant-shaped.

The Neapolitan Mastiff is a huge, powerful guard dog whose astounding appearance has intimidated intruders since the days of ancient Rome. Wary with strangers, the profusely wrinkled Mastino is sweet, placid, and steady among loved ones.

The massive Newfoundland is a strikingly large, powerful working dog of heavy bone and dignified bearing. The sweet-tempered Newfie is a famously good companion and has earned a reputation as a patient and watchful “nanny dog” for kids.