Linnaeus
Headquarters: Solihull, UK
Ownership structure
Ultimate owners
- Mars, Incorporated 100%
Corporation ยท USA
Trades as 2 names
- Linnaeus
- Linnaeus Veterinary Group
Share of practices by region
- South East 5% (78)
- London 15% (63)
- West Midlands 11% (57)
- Yorkshire 9% (54)
- South West 4% (41)
- East of England 6% (38)
- East Midlands 7% (33)
- Scotland 5% (29)
Percentage of all practices in each region owned by Linnaeus ; present in 3 further regions.
Reputation & Regulatory Matters
CMA found competition concerns and ordered remedies package (final report March 2026)
March 2026
View sourceLinnaeus Foundation supports veterinary education and welfare projects
January 2023
Overview
Linnaeus was founded in 2014 and acquired by Mars, Incorporated in 2020. The group focuses on both first-opinion veterinary care and specialist referral services.
Mars Connection
Mars, Incorporated is best known for chocolate brands like M&Ms, Snickers, and Mars bars, but pet care is actually a larger part of their business. Through Mars Petcare, they own:
- Pedigree, Whiskas, Royal Canin - Pet food brands
- Banfield, VCA, BluePearl - Veterinary practices (North America)
- Linnaeus - Veterinary practices (UK/Ireland)
This vertical integration means Mars profits from pet food, pet health, and veterinary care - raising questions about conflicts of interest.
UK Presence
Linnaeus operates approximately 200 practices including:
- First-opinion (general practice) veterinary clinics
- Specialist referral centres
- 24-hour emergency hospitals
What Pet Owners Should Know
- Linnaeus practices are owned by a global corporation with interests across the pet industry
- The Mars ownership may not always be prominently displayed at individual practices
- As part of Mars Petcare, there may be connections to pet food recommendations