What departments does Diamond Manufacturing Company have?

Diamond Manufacturing Company has employees across 11 departments including Entrepreneurship, Sales, Program & Project Management, Administrative, Manufacturing.

What is the largest department at Diamond Manufacturing Company?

The largest department at Diamond Manufacturing Company is Entrepreneurship with 5 employees.

Where are Diamond Manufacturing Company employees located globally?

Diamond Manufacturing Company has employees across 3 continents and 4 countries including India, Pakistan, United Kingdom Of Great Britain And Northern Ireland, United States Of America.

How has Diamond Manufacturing Company's team size changed over time?

Diamond Manufacturing Company's team has grown from approximately 73 to 75 employees based on available data.

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Diamond Manufacturing Company Employee Directory

Fabricated Metal ProductsPennsylvania, United States51-200 Employees

Diamond Manufacturing Company operates in the fabricated metal products sector, focusing on precision perforation of metal and related fabrication. It serves as a single-source supplier from material to finished product, addressing the needs of volume OEM buyers, local job shops, and architects, with operations across six locations in the United States. The company is a wholly owned subsidiary of Reliance Steel & Aluminum, aligning it with North America’s largest metals-solutions provider. Based in Wyoming, Pennsylvania, the operation reflects a mid-sized manufacturing profile.

In October 2022, Diamond Manufacturing expanded its Wyoming facility by adding a 30,000-square-foot production space, broadening its manufacturing capacity. The company maintains a website at diamondman.com.

Diamond Manufacturing Company Global Highlights

North America
128

United States Of America
128

Asia
13

India
12
Pakistan
1

Europe
1

United Kingdom Of Great Britain And Northern Ireland
1

Diamond Manufacturing Company's Leadership

M. N.
Chief Executive Officer
Mobile Phone
Email
D. H.
President
Mobile Phone
Email
L. M.
President
Mobile Phone
Email
G. M.
Owner
Mobile Phone
Email
J. C.
Owner
Mobile Phone
Email
J. A.
Owner
Mobile Phone
Email
K. H.
Owner
Mobile Phone
Email
B. W.
Vice President
Mobile Phone
Email

Diamond Manufacturing Company Employee Metrics

100%

50%

2026

2025

Sales
Administrative
Business
Purchasing
Supply Chain
Other

Contact profiles from Diamond Manufacturing Company

Name

Title

Contact Info

Location

Last Update

J. L.
Accounting Clerk
Mobile Phone
Email
Oct 21, 2024
J. C.
Member
Mobile Phone
Email
Oct 18, 2024
J. M.
Project Coordinator
Mobile Phone
Email
Oct 17, 2024
K. O.
Member
Mobile Phone
Email
Oct 18, 2024
K. B.
Market Research Assistant
Mobile Phone
Email
Feb 23, 2023
L. C.
Sales Representative
Mobile Phone
Email
Oct 17, 2024
R. O.
Broker
Mobile Phone
Email
Oct 23, 2024
T. B.
Inside Sales New Business Development Marketing
Mobile Phone
Email
Oct 21, 2024

Frequently Asked Questions

What is Diamond Manufacturing Company known for?

Diamond Manufacturing Company was founded in 1915 operates in the Fabricated Metal Products industry; you can contact the main corporate office by phone at

+1-800-831-****

. Explore Diamond Manufacturing Company's company overview page for more information.

What is Diamond Manufacturing Company's most common email format?

Diamond Manufacturing Company employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Diamond Manufacturing Company email formats with LeadIQ.

How many employees does Diamond Manufacturing Company have currently?

Diamond Manufacturing Company has approximately 133 employees as of July 2026. These team members are located across 3 continents, including North AmericaAsiaEurope.

Who are Diamond Manufacturing Company's key employees and leadership?

As of July 2026, Diamond Manufacturing Company's key employees include:

Chief Executive Officer: M. N.
President: D. H.
President: L. M.
Owner: G. M.
Owner: J. C.

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Diamond Manufacturing Company Employee Directory

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