Verified Nov 2026
Castings & Forgings
·
Sheboygan, Wisconsin
·
Since 1934
Plastics Engineering Company (PLENCO) manufactures thermosetting resins and molding compounds, including phenolic resins, bulk molding compounds, and custom compounds. The company was founded in 1934, is headquartered in Sheboygan, Wisconsin, United States, and employs an estimated 200-500 people with an estimated revenue band of $10-50 million. It is family-owned and privately held. PLENCO serves the automotive, electric-vehicle, aerospace, military-defense, renewable-energy, and industrial-equipment sectors.
Plastics Engineering Company (Plenco) at a glance
Revenue
$10-50M
Est. band
Employees
200-500
Founded
1934
Headquarters
Sheboygan, Wisconsin
Industries
Automotive
Electric Vehicles
Military & Defense
Renewable Energy
Industrial Equipment
Aerospace
Overview
Plastics Engineering Company (PLENCO) manufactures thermosetting resins and molding compounds, including phenolic resins, bulk molding compounds, and custom compounds. The company was founded in 1934, is headquartered in Sheboygan, Wisconsin, United States, and employs an estimated 200-500 people with an estimated revenue band of $10-50 million. It is family-owned and privately held. PLENCO serves the automotive, electric-vehicle, aerospace, military-defense, renewable-energy, and industrial-equipment sectors.
At a glance
Attribute | Detail |
|---|---|
Founded | 1934 |
Headquarters | Sheboygan, Wisconsin |
Employees | 200-500 |
Revenue | $10-50M (estimated) |
Primary capability | Castings & Forgings |
What Plastics Engineering Company (Plenco) makes
PLENCO offers formulation science, technical support, custom manufacturing, and research and development services for thermoset materials, though no specific certifications are listed in the record.
Company details
The company has been operating for over 90 years, and its public record does not identify specific named customers. Plastics Engineering Company (Plenco) was founded in 1934, has an estimated 200-500 employees, and is headquartered in Sheboygan, Wisconsin.
Frequently asked questions
What does Plastics Engineering Company (Plenco) make?
Plastics Engineering Company (PLENCO) manufactures thermosetting resins and molding compounds, including phenolic resins, bulk molding compounds, and custom compounds. The company was founded in 1934, is headquartered in Sheboygan, Wisconsin, United States, and employs an estimated 200-500 people with an estimated revenue band of $10-50 million. It is family-owned and privately held. PLENCO serves the automotive, electric-vehicle, aerospace, military-defense, renewable-energy, and industrial-equipment sectors.
Where is Plastics Engineering Company (Plenco) headquartered?
Plastics Engineering Company (Plenco) is headquartered in Sheboygan, Wisconsin (3518 Lakeshore Rd, Sheboygan, Wisconsin, 53083).
When was Plastics Engineering Company (Plenco) founded?
Plastics Engineering Company (Plenco) was founded in 1934.
How big is Plastics Engineering Company (Plenco)?
Plastics Engineering Company (Plenco) has an estimated 200-500 employees, with revenue in the $10-50M range (estimated).
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Last verified Nov 2026. Is this your company? Request a correction.
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