A.Y. McDonald Mfg. Co.

Come and work for a company that continues to grow and flourish and where our people make a difference! McDonald Plastic Molding is a subsidiary of A.Y. McDonald Industries, which is a family-owned company founded in 1856. People join our business (and stay) because of our collaborative workplace, d

Chicago Fittings Corp. is a major manufacturer of natural gas, propane, and specialty industrial fittings. The company is family owned and has a history of quality products since its founding in 1930. As a subsidiary of A.Y. McDonald Industries, Chicago Fittings Corp. operates as a family atmosphere

Chicago Fittings Corp. is a major manufacturer of natural gas, propane, and specialty industrial fittings. The company is family owned and has a history of quality products since its founding in 1930. As a subsidiary of A.Y. McDonald Industries, Chicago Fittings Corp. operates as a family atmosphere

A.Y. McDonald Mfg. Co. is a leading manufacturer of water works brass, plumbing valves, water systems, natural gas valves and meter bars. The company was founded in 1856 and is committed to taking care of the customer – our boss, through our growing investments of education, automation, and innovati