One Company. Many Countries. Same Fight.
MBR Acres is one site. The company that owns it — Marshall BioResources — is a multinational, with breeding facilities across the United States, the UK, France, China, Japan and beyond. Closing one operation without closing the others only shifts the cruelty. We are aligned with Save the Dogs USA on the wider Marshall campaign. Independent organisations, one parent company, one fight.
Marshall’s Operations
Marshall BioResources is one of the world’s largest commercial breeders of dogs for laboratory testing. It is a multinational with breeding operations across several countries — the UK and US sites below are two fronts of a much wider business.
MBR Acres
Marshall’s UK arm. Wyton, Cambridgeshire. Approximately 2,000 beagle puppies bred every year for sale to laboratories. Operates under a Section 2C establishment licence under the Animals (Scientific Procedures) Act 1986.
Five Crown Court trials in 2025–26: two acquittals, three convictions with suspended sentences. Westminster Hall debate 27 April 2026. Judicial review of the new protest-laws regime pending in the High Court.
Marshall Farms
Marshall’s primary US operation in upstate New York, plus contracts and supply relationships to laboratories including those that sourced from Ridglan Farms, Wisconsin — the breeder that has now agreed to close for good, with every remaining dog transferred out, after a multi-year campaign by Save the Dogs USA.
US targets named in the Save the Dogs USA campaign include Governor Kathy Hochul (NY), Attorney General Letitia James, Rep. Nick Langworthy (R-NY 23), and federal Members of Congress.
Marshall’s Facilities Worldwide
Marshall BioResources breeds dogs — and other animals — for laboratories on three continents. MBR Acres is one node in a much larger network. Here is what is known publicly, site by site.
North Rose, New York
The company headquarters and flagship breeding site. Tens of thousands of dogs and ferrets bred for research every year.
MBR Acres & B&K Universal
MBR Acres at Wyton, Cambridgeshire breeds roughly 2,000 beagles a year for laboratories. B&K Universal at Grimston, near Hull, is Marshall’s other UK site.
More from Camp BeagleGannat, Mézilles & Lyon
Three French sites — Gannat (Allier), Mézilles / Centre d’Élevage du Domaine des Souches (CEDS), and Lyon — breeding beagles and golden retrievers for laboratories.
More from Camp BeagleBreeding Facilities
Marshall operates breeding facilities in China. Public detail on these sites is limited — we state that plainly rather than speculate.
Breeding Operations
Marshall also runs breeding operations in Japan, extending the same model into a third continent.
Green Hill, Montichiari
Green Hill in Montichiari (Brescia) was once one of Europe’s largest research-dog suppliers. It was seized and shut down following a cruelty case — a Marshall-linked facility that has already been closed for good. Precedent.
The Green Hill StoryFacility details drawn from Camp Beagle’s reporting on Marshall BioResources (thecampbeagle.com).
Why This Matters
A campaign that closes MBR Acres but leaves Marshall’s US operations untouched does not stop the breeding business model — it just relocates it. The same is true in reverse. Save the Dogs USA put it directly:
“Marshall is one company — closing one operation without closing the other only shifts the cruelty.”
— savethedogs.io / marshall
Two independent campaigns, on two sides of the Atlantic, applying pressure to one company. Different legal regimes, different tactics, same target. That is the model.
Ridglan. Closed For Good.
Ridglan Farms in Wisconsin is the closest US analogue to MBR Acres. After years of investigations, a 2025 court probable-cause finding for felony animal cruelty, sustained nonviolent action including a 1,000-strong gathering met with tear gas, and cross-party congressional pressure, Ridglan released its first 1,500 beagles in spring 2026. It did not stop there: Ridglan has now agreed to close permanently, with further agreements transferring out every remaining dog — more than 2,000 in total.
A breeding facility shut for good. The same Marshall-supplied model is at MBR Acres. The same tools work. The route is visible.
The Full Ridglan StoryHow this campaign sits
Save the MBR Beagles started as a purely independent UK campaign and is still independently run. As the wider fight against Marshall BioResources has come together across both sides of the Atlantic, we’ve been happy to align with allied campaigns — including Save the Dogs USA, the Beagle Freedom Project, Animal Rising, Camp Beagle and the broader UK coalition of welfare and protest groups working to end commercial dog breeding for laboratory testing. Different organisations, different countries, different tactics. One outcome we are all working towards: empty buildings.
What You Can Do
The MBR Acres fight benefits from the global pressure on Marshall. The Marshall pressure benefits from the MBR Acres legal record. Both work better in tandem.
One Movement
UK ground action and US solidarity feed each other. The dogs are why.
Sources for this page: savethedogs.io/marshall (Save the Dogs USA campaign overview); savethedogs.io/ridglan (Ridglan campaign timeline, the spring 2026 release and subsequent agreement to close permanently and transfer out every remaining dog); thecampbeagle.com (Camp Beagle reporting on Marshall BioResources facilities in the UK, France and beyond); bfp.org/ridglan (Beagle Freedom Project rescue placement appeal); Spectrum News 1 Wisconsin and Associated Press for congressional and Wisconsin governor coverage. UK court record drawn from public Crown Court reporting and Hansard for the 27 April 2026 Westminster Hall debate.