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About NEI

With 150 years of experience, Neenah Enterprises, Inc. (NEI), has consistently maintained our industry leadership, delivering durable and expertly engineered structural and sustainable casting solutions for customers in Infrastructure and Industrial markets.

Serving customers in the US and internationally, the Company is headquartered in Neenah, WI, with facilities in Neenah, WI, Lincoln, NE and Miami, FL.  Our brands include Deeter Foundry, Neenah Foundry and US Foundry.



Neenah Foundry is one of the most comprehensive infrastructure manufacturers in North America. Some of our most recognizable products include manhole covers and frames, trench grates and frames, and the widest selection of tree grate solutions, among many other drainage products.


As a Tier 1 and OEM supplier of reliable, durable, and high-quality custom cast iron solutions, we serve a variety of markets including agriculture, material handling, mining, railroad, and many others.

Projects Profiles

Sky Harbor Airport Trench

Neenah Foundry installed almost 5,000 feet of trench at Sky Harbor International Airport, to help improve the airport’s infrastructure.

Agriculture Industry

For decades, Neenah Foundry’s iron castings have helped provide strength and durability to the remarkable machines that make modern agriculture possible.