Who Owns Linnaeus? Ownership & UK Practices

Ownership structure

Ultimate owners

Mars, Incorporated 100%

Corporation · USA

Source as of Mar 2026

Linnaeus 427 practices in our register

Trades as 2 names

Share of practices by region

South East 5% (78)
London 15% (63)
West Midlands 10% (57)
Yorkshire 9% (54)
South West 4% (41)
East of England 6% (38)
East Midlands 7% (33)
Scotland 5% (30)

Percentage of all practices in each region owned by Linnaeus ; present in 3 further regions.

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

Frequently asked questions