Founded as a division of Merck & Co., Merck Animal Health is a global, research-driven company dedicated to developing, manufacturing, and marketing veterinary medicines and services. The company's core mission is to improve animal health and well-being through innovative solutions for disease prevention, treatment, and control across major farm and companion animal species. Merck Animal Health offers a diverse and scientifically-proven product portfolio, aiming to enhance the health of animals worldwide.

Notable affiliated people include top veterinary scientists and researchers who contribute to the company's robust R&D efforts. Merck Animal Health has received significant investments from its parent company, Merck & Co., facilitating its growth and innovation. Key achievements include the development of groundbreaking vaccines and treatments that have significantly impacted animal health globally. The company's overall impact is reflected in its extensive global reach, with offices in numerous countries, making it a leader in the veterinary industry.