Formed in 2005, Western Diversified Plastics (WDP) is led by a team with hundreds of years combined experience in the design, tooling, and production of close tolerance injection-molded and electromechanical components for the automotive industry. WDP is a vertically integrated supplier, able to support automotive engineering teams from product development through production. We are singularly devoted to customer satisfaction and pull out all the stops to make sure our components meet the challenge, on-spec and on-time. WDP’s design & development campus is located in Mattawan, Michigan, halfway between Detroit and Chicago.
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Western Diversified Plastics Questions
The Western Diversified Plastics annual revenue was $84 million in 2026.
Sam Olson is the Director of Quality of Western Diversified Plastics.
71 people are employed at Western Diversified Plastics.
Western Diversified Plastics is based in Mattawan, Michigan.
The NAICS codes for Western Diversified Plastics are [336, 33, 3363, 33632].
The SIC codes for Western Diversified Plastics are [308, 30].
Top Western Diversified Plastics Employees
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24
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Sam Olson
Director of Quality at Western Diversified Plastics
Kalamazoo, MI, US15+ -
Erica Stratton
Buyer at Western Diversified Plastics
Kalamazoo, MI, US33 -
35+
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Jason Vowels
Purchasing Buyer at Western Diversified Plastics
Kalamazoo, MI, US13 -
Katheryn Beyer
Accountant at Western Diversified Plastics
Mattawan, MI, US1 -
Brian McWethy
Manufacturing Engineer at Western Diversified Plastics
Kalamazoo, MI, US23 -
Theresa Jameson
Superintendent at Western Diversified Plastics
Plainwell, MI, US2 -
12
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