Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiovascular, and diabetes under the Keytruda, Bridion, Adempas, Lagevrio, Belsomra, Simponi, and Januvia brands, as well as vaccine products consisting of preventive pediatric, adolescent, and adult vaccines under the Gardasil/Gardasil 9, ProQuad, M-M-R II, Varivax, RotaTeq, Live Oral, Vaxneuvance, Pneumovax 23, and Vaqta names. The Animal Health segment discovers, develops, manufactures, and markets veterinary pharmaceuticals, vaccines, and health management solutions and services, as well as digitally connected identification, traceability, and monitoring products. vIt has development and commercialization agreement for three of Daiichi Sankyo's deruxtecan ADC candidates, which include patritumab deruxtecan, ifinatamab deruxtecan, and raludotatug deruxtecan for the treatment of multiple solid tumors both as monotherapy and/or in combination with other treatments; and AstraZeneca PLC to co-development and co-commercialize AstraZeneca's Lynparza products for multiple cancer types, and Koselugo for multiple indications. It also has licensed to develop, manufacture and commercialize LM-299, a novel investigational PD-1/VEGF bispecific antibody from LaNova. The company also has a collaboration agreement with Eisai Co., Ltd., Bayer AG, and Ridgeback Biotherapeutics LP, as well Moderna, Inc. Merck & Co., Inc. was founded in 1891 and is headquartered in Rahway, 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.

Elanco Animal Health Incorporated, an animal health company, innovates, develops, manufactures, and markets products for pets and farm animals. It offers pet health disease prevention products, such as parasiticide and vaccine products that protect pets from worms, fleas, and ticks under the Seresto, Advantage, Advantix, and Advocate brands; pet health therapeutics for pain, osteoarthritis, ear infections, cardiovascular, and dermatology indications in canines and felines under the Galliprant and Claro brands; vaccines, antibiotics, parasiticides, and other products for use in poultry and aquaculture production, as well as nutritional health products, including enzymes, probiotics, and prebiotics; and a range of vaccines, antibiotics, implants, parasiticides, and other products used in ruminant and swine production under the Rumensin and Baytril brands. The company sells its products to third-party distributors; veterinarians; and farm animal producers, including beef and dairy farmers, as well as pork, poultry, and aquaculture operations. Elanco Animal Health Incorporated was founded in 1954 and is headquartered in Greenfield, Indiana.

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.

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.

Zomedica Corp., a veterinary health company, focuses on the unmet needs of clinical veterinarians by developing products for companion animals. The company offers diagnostic products comprising TRUFORMA Bulk Acoustic Wave point of care diagnostic platform; TRUVIEW, a digital cystoscopy platform that offers automated slide preparation within the instrument; and VetGuardian, a zero-touch vital signs remote monitoring system. It also provides therapeutic products, including PulseVet electrohydraulic shockwave therapy platform; and Assisi Loop line of products, including the Assisi Loop, Assisi Loop Lounge, and DentaLoop devices that treat pain and inflammation through delivery of targeted pulsed electromagnetic field focused energy. The company has collaboration agreements with Celsee, Inc. for the development and commercialization of liquid biopsy assays and related consumables for the detection of cancer in companion animals; and Seraph Biosciences, Inc. for the development of a novel pathogen detection system. The company was formerly known as Zomedica Pharmaceuticals Corp. and changed its name to Zomedica Corp. in October 2020. Zomedica Corp. is headquartered in Ann Arbor, Michigan.

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.