In 2024, U.S. pharmaceutical manufacturer Zoetis is the world’s leading company in the animal health sector, with total revenue of 9.2 billion U.S. dollars. Zoetis was formerly a part of Pfizer – under the name Pfizer Animal Health - until 2013, when it became an independent company. Two of the company’s largest product categories are vaccines and anti-infectives. Zoetis’ main competitors in the animal health market are German Boehringer Ingelheim, U.S.-based Merck & Co., and Elanco (Eli Lilly). Idexx Laboratories' Companion Animal Group (CAG) stands out in this ranking, as it focuses on diagnostics and related services.Â
  The animal health market saw some major transactions in the past. One of the largest M&A deals was the takeover of the animal health division Merial of French pharmaceutical company Sanofi by Boehringer Ingelheim from Germany within a swap deal. Another remarkable transaction was the acquisition of Swiss-based Novartis’ animal health segment by the U.S. company Elanco (Eli Lilly) in 2014.
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PharmaShots. (December 12, 2025). Leading animal health companies in 2024, based on revenue (in billion U.S. dollars) [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 31, 2026, from /statistics/260190/leading-animal-health-providers-based-on-revenue/
PharmaShots. "Leading animal health companies in 2024, based on revenue (in billion U.S. dollars)." Chart. December 12, 2025. ÌÇÐÄÆÆ½â°æ. Accessed July 31, 2026. /statistics/260190/leading-animal-health-providers-based-on-revenue/
PharmaShots. (2025). Leading animal health companies in 2024, based on revenue (in billion U.S. dollars). ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 31, 2026. /statistics/260190/leading-animal-health-providers-based-on-revenue/
PharmaShots. "Leading Animal Health Companies in 2024, Based on Revenue (in Billion U.S. Dollars)." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 12 Dec 2025, /statistics/260190/leading-animal-health-providers-based-on-revenue/
PharmaShots, Leading animal health companies in 2024, based on revenue (in billion U.S. dollars) ÌÇÐÄÆÆ½â°æ, /statistics/260190/leading-animal-health-providers-based-on-revenue/ (last visited July 31, 2026)
Leading animal health companies in 2024, based on revenue (in billion U.S. dollars) [Graph], PharmaShots, December 12, 2025. [Online]. Available: /statistics/260190/leading-animal-health-providers-based-on-revenue/