Prosep, LTD.

9251 N 2nd St, Roscoe, IL 61073

LIKELY ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 2 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

Analytical Laboratory Instrument Manufacturing334516

Where it is

42.39658, -89.01317 · CENSUS TIGER

COUNTY

Winnebago County

METRO AREA

Rockford, IL

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Other plants nearby

Facility	City	Industry	Status	Distance
Crandall Stats and Sensors, INC	Machesney Park	Other Electronic Component Manufacturing 334419	ACTIVE	2.7 KM
Electro Cam CORP	Roscoe	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	ACTIVE	6.9 KM
Ge Aviation Systems LLC	Loves Park	Industrial Valve Manufacturing 332911	LIKELY ACTIVE	8.9 KM
Supplycore LLC	Rockford	All Other Miscellaneous Manufacturing 339999	ACTIVE	15.2 KM
Kadon Aerospace LLC	Rockford	Machine Shops 332710	ACTIVE	19.3 KM

Every listed plant in Winnebago County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 10 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.

SAM.gov entity registrationOPERATING
Record M6ZQHK6G6ZT4 · first seen OCT 2026 · last seen OCT 2026
DOL Form 5500 retirement plan filingsOPERATING
Record 363787693|IL|61073|p o box 200 · first seen DEC 2024 · last seen DEC 2024

IN WINNEBAGO COUNTY6 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 2 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: PROSEP, LTD. · OCT 2026
Street address: SAM.gov: 9251 N 2ND ST · OCT 2026
City: SAM.gov: ROSCOE · OCT 2026
State: SAM.gov: IL · OCT 2026
Coordinates: Census geocoder: 42.396583163235,-89.013170164066 · NOV 2026
Employees (band): DOL: 20-99 · DEC 2024
Website: SAM.gov: www.prosep-ltd.com · OCT 2026
CAGE code: SAM.gov: 6HNK9 · OCT 2026
Retirement plan filing (Form 5500): DOL: 20 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
SAM registration expires: SAM.gov: 2027-10-02 · OCT 2026

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