Proteintech Group, INC.

5500 Pearl St, Ste 400, Rosemont, IL 60018

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 4 SOURCES

Operating signal within 12 months from two or more independent sources.

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Their homepage, crawled AUG 2026

What they make

Biological Product (except Diagnostic) Manufacturing325414

antibodies
proteins
reagents
Western Blot
Flow Cytometry
cGMP facility
custom antibody services

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Products

Made or handled here · 3

Immunohistochemistry Antibody Assay, Estrogen Receptor · Immunohistochemistry Assay, Antibody, Progesterone Receptor · Immunohistochemistry Reagents And Kits

Where these came from

3 from FDA device registration · Federal registry

FDA device establishment 3012214605, product code MYA

CAREERS

Careers page — seen SEP 8, 2026

Where it is

41.97854, -87.87228 · CENSUS TIGER

COUNTY

Cook County

METRO AREA

Chicago-Naperville-Elgin, IL-IN

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STREET VIEW

Open street-level view — SEP 2018

Other plants nearby

Facility	City	Industry	Status	Distance
Long Grove Pharmaceuticals, LLC	Rosemont	Pharmaceutical Preparation Manufacturing 325412	ACTIVE	0.8 KM
Meitheal Pharmaceuticals, INC	Chicago	Pharmaceutical Preparation Manufacturing 325412	LIKELY ACTIVE	2.4 KM
Abbott Molecular INC.	Des Plaines	In-Vitro Diagnostic Substance Manufacturing 325413	ACTIVE	3.8 KM
Vital Proteins LLC	Franklin Park	All Other Miscellaneous Food Manufacturing 311999	LIKELY ACTIVE	5.0 KM
Abraxis Bioscience LLC	Melrose Park	Pharmaceutical Preparation Manufacturing 325412	LIKELY ACTIVE	7.0 KM

Every listed plant in Cook County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 11 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

The company’s own websiteOPERATING
first seen JUL 2026 · last seen OCT 2026
FDA device establishment registrationsOPERATING
first seen AUG 2026 · last seen OCT 2026
SAM.gov entity registrationOPERATING
Record JM5GFF72S7X6 · first seen SEP 2025 · last seen AUG 2026
DOL Form 5500 retirement plan filingsOPERATING
Record 364430849|IL|60018|5500 pearl st ste 400 · first seen DEC 2024 · last seen DEC 2024

IN COOK COUNTY44 other plants share this one’s industry (Pharmaceutical and Medicine Manufacturing, NAICS 3254); 14 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name: SAM.gov: PROTEINTECH GROUP, INC. · AUG 2026
Street address: SAM.gov: 5500 PEARL ST · AUG 2026
City: SAM.gov: ROSEMONT · AUG 2026
State: SAM.gov: IL · AUG 2026
Coordinates: Census geocoder: 41.97854448124,-87.872277192236 · JUL 2026
Employees (band): DOL: 20-99 · DEC 2024
Website: SAM.gov: www.ptglab.com · AUG 2026
CAGE code: SAM.gov: 4MX18 · AUG 2026
Retirement plan filing (Form 5500): DOL: 81 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
SAM registration expires: SAM.gov: 2027-08-25 · AUG 2026
State business registration: TX Comptroller: PROTEINTECH GROUP, INC., registered with the Texas Comptroller of Public Accounts; Corporation; active

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