Grover Corporation
Grover Corporation manufactures piston rings and hydraulic seals for applications including transmissions, mobile hydraulics, industrial hydraulics, air compressors, shock absorbers, turbocharger assemblies, oil and gas compressors, hydro-electric systems, and large bore engines. The company produces rings and seals in various styles such as butt cut, side pin, oil control, angle cut, and step cut designs, using materials including cast iron, ductile iron, nickel-based alloys, inconel, bronze, and PTFE, with coating options such as manganese phosphate, chrome, and electroless nickel plating.
Certifications
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Grover Corporation | Glendale | WI | 20–99 | 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.


