Diamond Manufacturing Company
Perforated and Value Added Metal Specialists

Explore our new Diamond website!

Explore our new Diamond website!

Jun 8, 2023

We launched a significant refresh of our website to make your experience more productive and efficient.

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Recent expansion at Diamond Headquarters in Wyoming, Pennsylvania

Recent expansion at Diamond Headquarters in Wyoming, Pennsylvania

May 23, 2023

We just opened our new 30,000-square-foot facility.

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A 360-degree view of Diamond Manufacturing's new addition

A 360-degree view of Diamond Manufacturing's new addition

Feb 24, 2023

Check out the progress at 243 West Eighth Street in Wyoming, Pennsylvania, where 30,000-square-feet of production space is being added to the current facility at Diamond Manufacturing Company.

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Mark A. Nenichka of Diamond Manufacturing Co. Named “Ambassador of Safety” in 2023

Mark A. Nenichka of Diamond Manufacturing Co. Named “Ambassador of Safety” in 2023

Mar 23, 2023

Mark A. Nenichka, safety director and logistics manager at Diamond Manufacturing Co., was named “Ambassador of Safety” in 2023 by Reliance Steel and Aluminum Co.

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400-Ton Perforating Press Installed in 30,000-square-foot Addition

400-Ton Perforating Press Installed in 30,000-square-foot Addition

Oct 2022

In early fall 2022, Diamond Manufacturing expanded with the addition of a new, 30,000-square-foot production space in its facility in Wyoming, Pennsylvania.

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Diamond Manufacturing Company

Diamond Manufacturing is a wholly owned subsidiary of Reliance Steel & Aluminum Co.

Reliance Steel & Aluminum Co.

Site designed and developed by Blair Inc.

Site designed and developed by Blair Inc.