Heska Corporation develops, manufactures, markets, sells and supports veterinary products. The Company is focused on the canine and feline companion animal health markets. The Company operates in two segments: Core Companion Animal Health and Other Vaccines Pharmaceuticals and Products. The Core Companion Animal Health segment (CCA) includes, primarily for canine and feline use, blood testing instruments and supplies, digital imaging products, software and services, and single use products and services, such as heartworm diagnostic tests, heartworm preventive products, allergy immunotherapy products and allergy testing. The Other Vaccines, Pharmaceuticals and Products segment (OVP) includes private label vaccine and pharmaceutical production, primarily for cattle but also for other animals including small mammals.