Marshall
Marshall BioResources
Otherbreeding facilityNorth Rose, NY
The world's largest purpose-bred beagle supplier. Operating since the 1960s with facilities in the US, UK, China, France, Italy, and Japan. 'Marshall Beagle' is the de facto industry standard — study protocols often specify their dogs by name.
Related Facts (6)
F1Marshall BioResources (North Rose, NY) is the world's largest purpose-bred beagle supplier. Operating since the 1960s with facilities in the US, UK, China, France, Italy, and Japan. 'Marshall Beagle' is the de facto industry standard.#108
F2The beagle trade is global. Marshall BioResources operates facilities in at least 7 countries. Research beagles are shipped internationally via air freight.#111
F1There are fewer than a dozen major USDA Class A licensed dog breeding facilities in the US. The industry is highly concentrated among Marshall BioResources, Ridglan Farms, and a few others.#120
F1Marshall BioResources confines approximately 23,000 dogs in its sheds at any given time. It has been cited for more than 20 USDA Animal Welfare Act violations since 2007.#121
F1Over 6,000 beagles from Marshall were documented as having been shipped as cargo on SAS passenger planes via Copenhagen Airport to seven European countries. The route was disrupted after a 2023 investigative expose.#122
F1With Envigo closed (2023) and Ridglan surrendering its license (July 2026), Marshall BioResources is becoming the near-monopoly supplier of purpose-bred beagles in the United States.#123