Metal Improvement Company, LLC

678 W Winthrop Ave, Addison, IL 60101

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 3 SOURCES

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

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Homepage of Metal Improvement Company, LLC

Their homepage, crawled JUL 2026

What they make

Metal Heat Treating332811

surface treatment
metal improvement services
peening
coating
laser cladding
PTA cladding

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

Products

Sold by METAL IMPROVEMENT COMPANY, LLC · 2

Bars And Rods · Miscellaneous Fabricated Nonmetallic Materials

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 80NSSC17P1720 (2017-09-20), PSC . An award shows what the government bought from this company; it does not establish which of its sites made it.

Where it is

41.91564, -88.00565 · CENSUS TIGER

COUNTY

DuPage County

METRO AREA

Chicago-Naperville-Elgin, IL-IN

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Other plants nearby

Facility	City	Industry	Status	Distance
Morgan Ohare INC	Addison	Metal Heat Treating 332811	LIKELY ACTIVE	0.3 KM
Mexicali Hard Chrome	Addison	Electroplating, Plating, Polishing, Anodizing, and Coloring 332813	LIKELY ACTIVE	0.4 KM
Swd INC	Addison	Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers 332812	LIKELY ACTIVE	0.6 KM
Paxxus INC	Addison	Paper Bag and Coated and Treated Paper Manufacturing 322220	ACTIVE	0.8 KM
General Plating CO INC	Addison	Electroplating, Plating, Polishing, Anodizing, and Coloring 332813	LIKELY ACTIVE	0.9 KM

Every listed plant in DuPage County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 sources hold this plant, and 9 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 ACES, AIR, AIRS/AFS, EIS, RCRAINFO, TRIS · EPA site type STATIONARY.

The company’s own websiteOPERATING
first seen JUL 2026 · last seen OCT 2026
SAM.gov entity registrationOPERATING
Record HDFMSRGK8GY1 · first seen JAN 2026 · last seen SEP 2026
EPA Facility Registry ServiceEXISTENCE
Record 110001814092 · first seen JUN 2017 · last seen AUG 2022

ALSO RECORDED ASMETAL IMPROVEMENT COMPANY

IN DUPAGE COUNTY50 other plants share this one’s industry (Coating, Engraving, Heat Treating, and Allied Activities, NAICS 3328); 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.

NameSOURCES DISAGREE: EPA: METAL IMPROVEMENT COMPANY · JUL 2026; SAM.gov: METAL IMPROVEMENT COMPANY, LLC · SEP 2026 · ON THIS PAGE
Street addressSOURCES DISAGREE: EPA: 678 WEST WINTHROP AVENUE · JUL 2026; SAM.gov: 678 W WINTHROP AVE · SEP 2026 · ON THIS PAGE
City: EPA: ADDISON · JUL 2026 · ON THIS PAGE; SAM.gov: ADDISON · SEP 2026 · ON THIS PAGE
State: EPA: IL · JUL 2026 · ON THIS PAGE; SAM.gov: IL · SEP 2026 · ON THIS PAGE
County (FIPS code): EPA: 17043 · SEP 2026
Coordinates: EPA: 41.915643,-88.005651 · JUL 2026
Website: SAM.gov: https://cwst.com · SEP 2026
CAGE code: SAM.gov: 31776 · SEP 2026
SAM registration expires: SAM.gov: 2027-09-02 · SEP 2026

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