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Polyjohn Enterprises, LLC

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www.polyjohn.com
Homepage of Polyjohn Enterprises, LLC
Their homepage, crawled AUG 1, 2026
At a glance
Employees100-499
In business sinceNot reported
HeadquartersWhiting, IN
US patents26
SAM.gov UEICWMDKYECBNQ7
CAGE code0MSD2
Incorporated inDE
LISTED ON FACTORYREGISTRY100%SOURCE COVERAGE
Named on the company’s own website, read JUL 29, 2026

What they make

sinksTANKS

CareersCareers page — seen SEP 8, 2026

Supplier designations

For Profit OrganizationManufacturer of GoodsSubchapter S Corporation

Self-certified by the company in its SAM.gov registration

Patents

26 US patents granted 1986–2012, none of them in the five years to SEP 2025, including 8 design patents.

Civil engineering 9Furniture, games 7Thermal processes and apparatus 1Environmental technology 1

Newest 5 shown · Granted to PolyJohn Enterprises Corporation · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0

Their plants

3 FACILITIES
FacilityCityStateEmployeesStatus
Polyjohn Enterprises, LLCWhitingIN— ACTIVE
PolyJohn Enterprises TecumsehTecumsehMI20–99 LIKELY ACTIVE
PolyJohn Enterprises SalisburySalisburyNC1–19 LIKELY ACTIVE

Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.