Verified Nov 2026
Electronics & Software
·
Mattawan, Michigan
·
Since 2005
Western Diversified Plastics (WDP) is a Michigan-based company established in 2005 with 500 to 1,000 employees. The company specializes in custom engineered plastic and electromechanical components for automotive and industrial applications, offering in-house engineering for software, electrical, mechanical needs, and full-service product development through manufacturing and production support.
Western Diversified Plastics at a glance
Revenue
$500M-1B
Est. band
Employees
500-1,000
Founded
2005
Headquarters
Mattawan, Michigan
Certifications
ISO 14001 · ISO 45001
Import activity
195
Industries
Automotive
Electric Vehicles
Electronics
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
195
Named foreign suppliers
15
Top origins
Spain · France · Netherlands · Belgium
Shared foreign counterparties do not establish that these companies buy from Western Diversified Plastics.
What this tells a buyer
The company sources components from suppliers across Spain, France, Netherlands, Belgium, Germany, Israel, and Turkey, with 195 documented shipment types.
Capabilities include injection mold tool design and build, electromechanical component engineering, PCBA manufacturing, connector design, and power distribution product development.
WDP operates facilities in Mattawan and Plymouth, Michigan, with additional contact points in Germany, Ireland, and Sweden for global automotive support.
Source: US customs bill-of-lading records and public filings · Last verified Nov 04, 2026
STABILITY SIGNALS
Established & active
21 years in operation (founded 2005).
195 US import shipments on record.
Holds ISO 14001, ISO 45001 certification(s) per its site.
Overview
Western Diversified Plastics (WDP) is a Michigan-based company established in 2005 with 500 to 1,000 employees. The company specializes in custom engineered plastic and electromechanical components for automotive and industrial applications, offering in-house engineering for software, electrical, mechanical needs, and full-service product development through manufacturing and production support.
At a glance
Attribute | Detail |
|---|---|
Founded | 2005 |
Headquarters | Mattawan, Michigan |
Employees | 500-1,000 |
Revenue | $500M-1B (estimated) |
Primary capability | Electronics & Software |
Certifications | ISO 14001 · ISO 45001 |
What Western Diversified Plastics makes
Capabilities include injection mold tool design and build, electromechanical component engineering, PCBA manufacturing, connector design, and power distribution product development. Western Diversified Plastics lists ISO 14001 · ISO 45001 on its site; buyers should confirm the certified scope of the specific producing plant.
Trade and customs footprint
The company sources components from suppliers across Spain, France, Netherlands, Belgium, Germany, Israel, and Turkey, with 195 documented shipment types. US customs bill-of-lading records list 195 inbound shipments across 15 foreign suppliers, with top origins including Spain · France · Netherlands · Belgium.
Company details
WDP operates facilities in Mattawan and Plymouth, Michigan, with additional contact points in Germany, Ireland, and Sweden for global automotive support. Western Diversified Plastics was founded in 2005, has an estimated 500-1,000 employees, and is headquartered in Mattawan, Michigan. On the LightSource stability read it is rated "Established & active": 21 years in operation (founded 2005). 195 US import shipments on record. Holds ISO 14001, ISO 45001 certification(s) per its site.
Frequently asked questions
What does Western Diversified Plastics make?
Western Diversified Plastics (WDP) is a Michigan-based company established in 2005 with 500 to 1,000 employees. The company specializes in custom engineered plastic and electromechanical components for automotive and industrial applications, offering in-house engineering for software, electrical, mechanical needs, and full-service product development through manufacturing and production support.
Where is Western Diversified Plastics headquartered?
Western Diversified Plastics is headquartered in Mattawan, Michigan (53150 N Main St, Mattawan, Michigan, 49071-8305).
When was Western Diversified Plastics founded?
Western Diversified Plastics was founded in 2005.
How big is Western Diversified Plastics?
Western Diversified Plastics has an estimated 500-1,000 employees, with revenue in the $500M-1B range (estimated).
What certifications does Western Diversified Plastics hold?
Western Diversified Plastics lists ISO 14001 · ISO 45001 on its website. Confirm the certified scope for the specific plant producing your part.
Does Western Diversified Plastics import from overseas suppliers?
US customs bill-of-lading records show 195 inbound shipments for Western Diversified Plastics, with top origins including Spain · France · Netherlands · Belgium.
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Last verified Nov 2026. Is this your company? Request a correction.
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