Petersen Resources LLC
At a glance
Employees20-99
In business since1916
HeadquartersFredonia, WI
US patents2
SAM.gov UEIHKHHCLMAMHJ1
CAGE code5EJG4
Incorporated inWI
Brands
Bladders
Bypass Inflatable PlugsBypass Pipe PlugsThis company sells these brands.
- pipe plugs
- annular seals
- pumps
- Sewer Flushers
- Drain Flushers
- tools
- contractors
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
2 US patents granted 2023–2024, 2 of them in the five years to SEP 2025.
Mechanical elements 2
- Flow restriction systemUS 11,982,392 · granted MAY 14, 2024
- Mechanical plugUS 11,692,660 · granted JUL 4, 2023
Granted to Petersen Resources, LLC · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Petersen Resources LLC | Fredonia | 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.