Zoetis Inc. engages in the discovery, development, manufacture, and commercialization of animal health medicines, vaccines, and diagnostic products and services in the United States and internationally. The company commercializes products primarily across species, including livestock, such as cattle, swine, poultry, fish, and sheep and others; and companion animals comprising dogs, cats, and horses. It also offers parasiticides, vaccines, dermatology, other pharmaceutical, anti-infectives, animal health diagnostics, and medicated feed additives. In addition, the company provides animal health diagnostics, including point-of-care diagnostic products, instruments and reagents, rapid immunoassay tests, reference laboratory kits and services, and blood glucose monitors; and other non-pharmaceutical products, which include nutritionals, as well as products and services in biodevices, genetic tests, and precision animal health. It markets its products to veterinarians, livestock producers, and pet owners. The company has collaboration Blacksmith Medicines, Inc. to discover and develop novel antibiotics for animal health. Zoetis Inc. was founded in 1952 and is headquartered in Parsippany, New Jersey.

IDEXX Laboratories, Inc. develops, manufactures, and distributes products primarily for the companion animal veterinary, livestock and poultry, dairy, and water testing markets in Africa, the Asia Pacific, Canada, Europe, Latin America, and internationally. The company operates through three segments: Companion Animal Group; Water Quality Products; and Livestock, Poultry and Dairy. It also provides point-of-care veterinary diagnostic products, including instruments, consumables, and rapid assay test kits; veterinary reference laboratory diagnostic and consulting services; practice management and diagnostic imaging systems and services for veterinarians; and health monitoring, biological materials testing, and laboratory diagnostic instruments, and services for biomedical research community. In addition, the company offers diagnostic and health-monitoring products for livestock, poultry, and dairy; products that test water for various microbiological contaminants; point-of-care electrolytes and blood gas analyzers; in-clinic chemistry, blood and urine chemistry, hematology, immunoassay, urinalysis, and coagulation analyzers; and SNAP rapid assays test kits. Further, it provides Colilert, Colilert-18, and Colisure tests, which detect the presence of total coliforms and E. coli in water; Enterolert, Pseudalert, Filta-Max and Filta-Max xpress, Legiolert, and Quanti-Tray products; and veterinary software and services for independent veterinary clinics and corporate groups. Additionally, the company offers human medical point-of-care products and laboratory diagnostics services. The company markets its products through marketing, customer service, sales, and technical service groups, as well as through independent distributors and other resellers. IDEXX Laboratories, Inc. was incorporated in 1983 and is headquartered in Westbrook, Maine.

PetIQ, Inc. operates as a pet medication and wellness company in the United States and internationally. It operates in two segments, Products and Services. The company offers Rx pet medications, which sells flea and tick control, heartworm preventatives, arthritis, thyroid, diabetes and pain treatments, antibiotics, and other specialty medications; and develops and manufactures its own proprietary value-branded products, as well as third-party branded products for dogs and cats. It also provides OTC medications and supplies primarily within the flea and tick control, dog dewormers, and behavior management categories of the health and wellness industry in various forms, such as spot on (topical) treatments, chewables, oral tablets, and collars. In addition, the company offers health and wellness products that include dog and cat treats, oral health solutions, stain and odor treatments, and pet nutritional supplements under the PetArmor®, Rocco & Roxie®, VetIQ®, Minties® and Sentry® brands. It provides its products primarily under the PetIQ, PetArmor, VIP Petcare, VetIQ PetCare, VetIQ, Capstar, Advecta, SENTRY, Sergeants, PurLuv, Rocco & Roxie, Minties, Heart Shield Plus, and TruProfen brand names. In addition, the company operates veterinarian service platform through community clinics, pop-up locations, wellness centers, and permanent locations that offer cost effective and convenient veterinary wellness services, including diagnostic tests, vaccinations, prescription medications, microchipping, grooming and hygiene, and wellness checks; and provides veterinary care services. It operates through veterinarian, retail, and e-commerce channels. PetIQ, Inc. was founded in 2010 and is headquartered in Eagle, Idaho. As of October 25, 2024, PetIQ, Inc. was taken private.

Petco Health and Wellness Company, Inc., operates as a health and wellness company, focuses on enhancing the lives of pets, pet parents, and its Petco partners in the United States, Mexico, and Puerto Rico. The company provides veterinary care, grooming, training, tele-health, and Vital Care and pet health insurance services, as well as veterinary services through Vetco mobile clinics. It also offers pet consumables, supplies, and services through its petco.com, petcoach.co, petinsurancequotes.com, and pupbox.com websites. The company offers its products under the WholeHearted, Reddy, and Well & Good brands. Petco Health and Wellness Company, Inc. was founded in 1965 and is headquartered in San Diego, California.

Phibro Animal Health Corporation operates as an animal health and mineral nutrition company in the United States, Israel, Brazil, Ireland, and internationally. It operates through three segments: Animal Health, Mineral Nutrition, and Performance Products. The company develops, manufactures, and markets various products for food and companion animals including poultry, swine, beef and dairy cattle, aquaculture, and dogs. It also offers animal health products, such as antibacterials, anticoccidials, nutritional specialty, and vaccines and vaccine adjuvants for animal's health and performance, food safety, and animal welfare; and engages in development, manufacturing, and marketing of microbial and bioproducts for various applications serving animal health and nutrition, environmental, industrial, and agricultural customers. In addition, the company develops, manufactures, and markets conventionally licensed and autogenous vaccine products, as well as adjuvants for animal vaccine manufacturers. Further, it provides formulations and concentrations of trace minerals, such as zinc, manganese, copper, iron, and other compounds to fortify the daily feed requirements of their livestock's diets and maintain optimal balance of trace elements in animals. Additionally, the company offers specialty ingredients for personal care, industrial chemical, and chemical catalyst industries. It sells its animal health and mineral nutrition products through local sales offices to integrated poultry, swine, and cattle producers, as well as through commercial animal feed manufacturers, wholesalers, and distributors. The company was formerly known as Philipp Brothers Chemicals, Inc. and changed its name to Phibro Animal Health Corporation in July 2003. Phibro Animal Health Corporation was founded in 1946 and is headquartered in Teaneck, New Jersey.

PetMed Express, Inc., together with its subsidiaries, operates as a pet pharmacy in the United States. The company markets prescription and non-prescription pet medications, health products, and other supplies for dogs, cats, and horses. It offers non-prescription medications and supplies, such as flea and tick control products, bone and joint care products, vitamins, treats, nutritional supplements, hygiene products, and household pet supplies; and prescription medications, including heartworm preventatives, flea and tick preventatives, arthritis, dermatitis, thyroid, diabetes, pain medications, heart/blood pressure, and other specialty medications, as well as generic substitutes. The company also sells food, beds, crates, stairs, and other pet supplies. It sells its products through its Internet website; mobile app; customer support center; and direct mail/print, which includes brochures and postcards. The company was incorporated in 1996 and is headquartered in Delray Beach, Florida.

ImmuCell Corporation, an animal health company, develops, manufactures, and sells products that enhance the health and productivity of dairy and beef cattle in the United States and internationally. The company operates through two segments, Scours and Mastitis. It offers First Defense, an orally delivered scours preventive product for calves with claims against E. coli, coronavirus, and rotavirus; and Tri-Shield First Defense, a passive antibody product for the treatment of E. coli, coronavirus, and rotavirus. The company also provides California Mastitis Test, a quick on-farm diagnostic that is used to detect somatic cell counts in milk, as well as to determine, which quarter of the udder is mastitic; and Dual-Force First Defense, a bivalent gel tube formulation. In addition, it is developing Re-Tain Drug Product, a Nisin-based intramammary treatment of subclinical mastitis in lactating dairy cows. It sells its products through animal health distributors. ImmuCell Corporation was incorporated in 1982 and is headquartered in Portland, Maine.

PetVivo Holdings, Inc., a biomedical device company, manufactures, commercializes, and licenses medical devices and therapeutics for animals. Its lead product is Spryng, a veterinarian-administered, intraarticular injection for the management of lameness and other joint afflictions, such as osteoarthritis in dogs and horses. The company's pipeline products also include therapeutic devices for veterinary and human clinical applications. PetVivo Holdings, Inc. is headquartered in Edina, Minnesota.