Like human hospitals, veterinary clinics have diagnostic equipment that is expensive to purchase and maintain. Radiology is a huge investment, especially if state-of-the-art digital x-ray and ultrasound machines are utilized.

Services. Animal hospitals, also known as veterinary hospitals, typically offer a wider range of services and more specialized options compared to clinics. This doesn't mean that they have a higher quality of service than veterinary clinics, but it does mean that they have more treatments available.

Mars, while not a private equity firm, is the biggest consolidator of pet care companies in the United States, owning pet food companies, pet pharmacies and veterinary care clinic chains such as Banfield Pet Hospitals and BluePearl.

The Schwarzman Animal Medical Center is the world's largest non-profit animal hospital. 20+ veterinary specialties. Open 24/7/365. AAHA-Accredited.