Heska Corp sells veterinary diagnostic and other specialty veterinary products with a focus on the canine and feline markets. Its core companion animal health business generates the majority of Heska’s revenue and includes blood testing instruments and supplies, digital imaging products, and single-use products, such as preventative products, diagnostic tests for heartworm, and allergy products. These products are sold to veterinarians and other distributors. The other vaccines, pharmaceuticals, and products segment includes private-label vaccine and pharmaceutical production, primarily for cattle and small mammals. These products are all sold by third parties under their own labels. The vast majority of the firm’s revenue is generated in the United States.