A.Y. McDonald is a fifth-generation American manufacturer with roots tracing back to 1856. The company is one of the 100 oldest family businesses in the United States, with nearly 170 years of continuous operation. Its core business centers on producing water works, plumbing, and natural gas products.
The product portfolio includes water works brass, plumbing valves, pumps and water systems, and high pressure gas valves and meter bars. These serve key industry verticals including water distribution, utilities, and municipalities. The company operates exclusively within the United States.
Internally, the firm maintains A.Y. University, an in-house training program aimed at helping employees develop skills and advance their careers. The company's stated guiding philosophy is "to make good products and sell them honestly," reflecting a commitment to quality and integrity.





