Since 1921, McWane Ductile has manufactured ductile iron pipe for water and wastewater infrastructure, pairing foundry production with project-specific fabrication services. A division of McWane Inc., the company operates three U.S. foundries in New Jersey, Ohio, and Utah and employs more than 1,000 people. Its Coshocton operation also produces ductile iron utility poles, including through a $50 million section-casting and annealing expansion completed in 2024.
MPS MankatoSince 1876, MPS Mankato has operated a Mankato foundry producing ductile iron castings and helping manufacturers convert costly fabrications into cast parts. The facility produces 120 tons of ductile iron daily for more than 150 customers, with engineering, in-line machining, and coordinated finishing kept close to the casting operation. Its quality system has been registered to ISO standards since 1996 and is currently certified to ISO 9001:2015.WASHINGTON, WV
Frazer & JonesEstablished in 1845, Syracuse-based Frazer & Jones is a ductile and malleable iron foundry that takes projects from raw material through finished castings. Its nearly 210,000-square-foot facility produces about 90 million castings a year, while the company’s mining support line has supplied underground roof expansion anchors since 1952. Frazer & Jones employs roughly 150 people and operates an ISO 9001:2015-certified quality management system.SOLVAY, NY
Advanced Drainage Systems, IncAdvanced Drainage Systems manufactures durable pipe and engineered water-management systems that capture, convey, store and treat water for infrastructure, agriculture and communities. Based in Ohio and employing more than 5,000 people, ADS also stands out as one of North America’s largest plastics recyclers, turning more than half a billion pounds of plastic each year into products such as durable pipe. Its portfolio includes the Infiltrator brand, which has spent more than 38 years developing decentralized wastewater treatment solutions.HILLIARD, OH
Wayne Crouse, IncFounded in 1933 by electrical engineer Wayne Crouse, Wayne Crouse, Inc. has grown from a one-person shop into a Western Pennsylvania mechanical contracting and engineering firm with more than 30 professionals. The company handles complex building and industrial work, with particular depth in water and wastewater treatment and a 10,000-square-foot pipe-fabrication facility. Its leadership includes multiple generations of the Lugaila family, while its safety program places accident prevention ahead of production and cost.PITTSBURGH, PA