Excelsior LLC
Excelsior manufactures custom gaskets from materials including cloth-inserted rubber, cork rubber, electrical insulating materials, EMI shielding materials, FDA-approved rubber, felts, fiber, paper, foam, metal, non-asbestos compressed materials, plastics, polyethylene, polyimide film, solid rubber, and various elastomers such as Viton, EPDM, neoprene, nitrile, and silicone. The company uses waterjet cutting, laser cutting, knife cutting, die cutting, lathe cutting, vulcanizing, and vision systems for material converting. It serves aerospace, aviation, agricultural, construction, automotive, compressor, pump, motor, fluid control, food, electronics, oil field, plumbing, and lighting industries.
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Excelsior LLC | Rockford | 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.


