Sterling Spring, L.l.c

4501 S. Knox Avenue, Chicago, IL 60632

UNVERIFIEDLAST SEEN IN FEDERAL DATA — · 1 SOURCE

Present in a source dataset, with no recent operating signal.

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Their homepage, crawled AUG 2026

What they make

Spring and Wire Product Manufacturing332611

custom springs
wire forms
stampings
metal products
assemblies
1.000
flat wire
progressive dies

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

Products

Sold by STERLING SPRING LLC · 2

Coil, Flat, Leaf, And Wire Springs · Rockets, Rocket Ammunition And Rocket Components

Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.

Where these came from

2 from usaspending_psc · Federal registry

Supplied under federal award N0017423P0022 (2023-01-26), PSC . An award shows what the government bought from this company; it does not establish which of its sites made it.

CAREERS

Careers page — seen SEP 8, 2026

Where it is

41.81088, -87.73958 · CENSUS TIGER

COUNTY

Cook County

METRO AREA

Chicago-Naperville-Elgin, IL-IN

ON GOOGLE MAPS

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STREET VIEW

Open street-level view — JUL 2025

Other plants nearby

Facility	City	Industry	Status	Distance
Sterling Spring LLC	Chicago	Spring Manufacturing 332613	ACTIVE	2.4 KM
Connelly-gpm INC	Chicago	Other Fabricated Wire Product Manufacturing 332618	UNVERIFIED	4.4 KM
Global Material Technologies INC	Chicago	Abrasive Product Manufacturing 327910	LIKELY ACTIVE	4.6 KM
Chilo Manufacturing & Plating Company	Chicago	All Other Miscellaneous Chemical Product and Preparation Manufacturing 325998	UNVERIFIED	5.5 KM
Astoria Wire Products INC	Bedford Park	Sheet Metal Work Manufacturing 332322	ACTIVE	6.1 KM

Every listed plant in Cook County

Also at this address

No other federal record shares this street address.

Where this record comes from

1 source holds this plant, and 5 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.

EPA cross-references this facility in OSHA-OIS.

EPA Facility Registry ServiceEXISTENCE
Record 110070280872 · first seen SEP 2018 · last seen SEP 2018

IN COOK COUNTY42 other plants share this one’s industry (Spring and Wire Product Manufacturing, NAICS 3326); 19 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: EPA: STERLING SPRING, L.L.C · OCT 2026
Street address: EPA: 4501 S. KNOX AVENUE · OCT 2026
City: EPA: CHICAGO · OCT 2026
State: EPA: IL · OCT 2026
Coordinates: EPA: 41.81088,-87.73958 · OCT 2026

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