Envigo / Inotiv
Closed 2023Corporate History
The Cumberland facility operated continuously since the 1960s under a succession of corporate owners — each inheriting the same dogs, the same buildings, and the same problems.
Business Operations
The Rescue
One of the largest animal rescues in US history. Coordinated by the Humane Society of the United States (HSUS) with Homeward Trails Animal Rescue (Virginia) as key intake partner. Many dogs had spent their entire lives in the facility and required behavioral rehabilitation.
Industry Impact
Envigo's closure removed approximately 5,000 dogs from the US purpose-bred supply chain. Combined with Ridglan's settlement (license surrender by July 2026), Marshall BioResources is becoming the near-monopoly supplier of purpose-bred beagles in the United States.
The bipartisan Congressional attention helped build momentum for the FDA Modernization Act 2.0, signed December 2022 — removing the 1938 animal testing mandate.