Superior Felt & Filtration LLC
At a glance
EmployeesNot reported
In business sinceNot reported
Industry
HeadquartersMchenry, IL
SAM.gov UEILDQSULN4GFB5
CAGE code4RPC7
Incorporated inIL
- nonwoven textiles
- wool felts
- filtration media
- reprocessed wool
- stocks multiple densities
- thicknesses
- CPAP
- dust bags
- HVAC
- pollen filters
- medical filtration
Named on the company’s own website, read JUL 29, 2026
What they make
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Certifications
ISO 13485ISO 9001
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Superior Felt & Filtration LLC | Mchenry | IL | — | 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.