IDEXX Laboratories, Inc.

IDEXX Laboratories began in 1983 with a singular focus from founder David Evans Shaw: improving companion animal health through better diagnostics. The company started small in Westbrook, Maine, before expanding into a global network that now serves veterinarians, farmers, and water utilities across more than 175 countries. Today the organization employs roughly 11,000 people who work in laboratories, farms, and testing facilities dedicated to keeping pets, livestock, and humans safe.

Jon Ayers led the firm as chairman and CEO for twenty years starting in 2002, turning annual revenues of $380 million into over $3 billion by the time he stepped down. Jay Mazelsky took over the CEO role in 2019 and pushed the company toward digital integration and artificial intelligence. By 2025 the business projected sales between $4.21 billion and $4.28 billion, continuing a trajectory of consistent growth driven by its diverse portfolio. [edit]