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Gsi Group LLC

1004 E Illinois St, Assumption, IL 62510

LIKELY ACTIVELAST SEEN IN FEDERAL DATA FEB 2026 · 4 SOURCES

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

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What they make

All Other Miscellaneous Fabricated Metal Product Manufacturing332999

Where it is

39.51746, -89.03807 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

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Gsi GroupTaylorvilleAll Other Miscellaneous Fabricated Metal Product Manufacturing
332999
LIKELY ACTIVE24.7 KM
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Every listed plant in Christian County

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

GSI : Assumption
Assumption, IL
LIKELY ACTIVE333111EMP 100-499

Where this record comes from

4 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.

EPA cross-references this facility in ACES, AIR, AIRS/AFS, BR, EIA-860, EIS, NPDES, RCRAINFO, TRIS · EPA site type STATIONARY.

  • EPA ECHO compliance recordsOPERATING
    first seen FEB 2026 · last seen FEB 2026
  • EPA Toxics Release InventoryOPERATING
    first seen DEC 2023 · last seen DEC 2024
  • DOL Form 5500 retirement plan filingsOPERATING
    Record 370856587|IL|62510|1004 e illinois st · first seen DEC 2024 · last seen DEC 2024
  • EPA Facility Registry ServiceEXISTENCE
    Record 110028924145 · first seen JUN 2017 · last seen SEP 2018

ALSO RECORDED ASTHE GSI GROUP, LLC

IN CHRISTIAN COUNTY2 other plants share this one’s industry (Other Fabricated Metal Product Manufacturing, NAICS 3329); 1 of them has 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: GSI GROUP LLC · OCT 2026
Street address
EPA: 1004 E ILLINOIS ST · OCT 2026
City
EPA: ASSUMPTION · OCT 2026
State
EPA: IL · OCT 2026
County (FIPS code)
EPA: 17021 · OCT 2026
Coordinates
EPA: 39.517462,-89.03807 · OCT 2026
Employees (band)
DOL: 500+ · DEC 2024
Retirement plan filing (Form 5500)
DOL: 1,214 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
Hazardous waste generator (RCRA)
EPA ECHO: SQG · OCT 2026
State business registrationSOURCES DISAGREE
CO SOS: The GSI Group, LLC, registered with the Colorado Secretary of State; Limited liability company formed in Delaware; registered 2013-11-13; active · NOV 2013
IA SOS: THE GSI GROUP, LLC, registered with the Iowa Secretary of State; Limited liability company; registered 2026-08-31; active · AUG 2026
MS SOS: THE GSI GROUP, INC., registered with the Mississippi Secretary of State; Corporation; registered 1990-08-09; revoked · AUG 1990

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