Proteintech Group, INC.
At a glance
Employees20-99
In business sinceNot reported
HeadquartersRosemont, IL
SAM.gov UEIJM5GFF72S7X6
CAGE code4MX18
Incorporated inIL
- antibodies
- proteins
- reagents
- Western Blot
- Flow Cytometry
- cGMP facility
- custom antibody services
Named on the company’s own website, read JUL 29, 2026
What they make
Immunohistochemistry Antibody Assay, Estrogen ReceptorImmunohistochemistry Assay, Antibody, Progesterone ReceptorImmunohistochemistry Reagents And Kits
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of GoodsMinority Owned Business
Self-certified by the company in its SAM.gov registration
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Proteintech Group, INC. | Rosemont | IL | 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.


