Heska Corporation develops, manufactures, markets, sells and supports veterinary products. The Company is focused on the canine and feline companion animal health markets. It operates in two segments: Core Companion Animal Health and Other Vaccines, Pharmaceuticals and Products. The Core Companion Animal Health segment (CCA) includes diagnostic instruments and supplies, as well as single use diagnostic and other tests, vaccines and pharmaceuticals, primarily for canine and feline use. These products are sold directly by the Company as well as through independent third-party distributors and through other distribution relationships. 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 and fish. All OVP products are sold by third parties under third party labels.