Circle - Prosco, INC.
At a glance
Employees20-99
In business since1971
Industry
HeadquartersBloomington, IN
US patents2
SAM.gov UEICX29CKJGFLK8
CAGE code09QP0
Incorporated inIN
- forming lubricants
- pretreatment
- passivation
- coatings
- agriculture
- automotive
- home appliance
- HVAC manufacturing
- stamping
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit Organization
Self-certified by the company in its SAM.gov registration
Patents
2 US patents granted in 1995, none of them in the five years to SEP 2025.
Surface technology, coating 2
- Hydrophilic coatings for aluminumUS 5,441,580 · granted AUG 15, 1995
- Conversion coatings for metal surfacesUS 5,380,374 · granted JAN 10, 1995
Granted to Circle-Prosco, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Circle - Prosco, INC. | Bloomington | IN | 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.