Mueller Industries, Inc. MLI

MLI Company Overview

Mueller Industries, Inc. is a U.S.-based manufacturing company specializing in copper, brass, aluminum, and plastic products used primarily in plumbing, HVAC, refrigeration, and industrial applications. The company operates within the industrial manufacturing and building products industries, serving both residential and commercial construction markets as well as original equipment manufacturers (OEMs). Its core revenue drivers include engineered metal products, piping systems, fittings, valves, and climate-related components.

Founded in 1917 as Mueller Metals Company, the business has evolved through organic expansion and acquisitions into a vertically integrated manufacturer with significant control over raw material processing and downstream fabrication. Mueller Industries is recognized for its scale in copper-based products, broad product portfolio, and long-standing relationships with distributors and contractors, which collectively provide cost advantages and operational resilience.