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Public record · Illinois

DuPage County: 1,374 companies on record.

The companies the public registers place in DuPage County, Illinois, by sector, as DealSTE read them — read 8 Nov 2026. Each opens on its own record page: registration, sites, permits, liens and compliance, each with its register.

By sector
SectorCompanies
Manufacturing502
Defense and federal contracting334
Auto services — repair, collision, tire188
Distribution & wholesale70
Professional services — accounting, engineering, insurance55
Trades — HVAC, plumbing, electrical, mechanical45
Healthcare — medical, dental & home health44
Trucking25
IT & managed services21
Home construction & remodeling18
Retail — specialty, convenience & liquor18
Commercial & specialty contracting12
Staffing12
Funeral homes11
Waste hauling, roll-off & recycling6
Commercial cleaning & facilities services3
Landscaping, lawn care & grounds3
Restaurants3
Pest control2
Car washes & quick lube1
Veterinary practices1
The companies — the first 50 of 1,374, as the map lists them
CompanySectorCity
Thybar Corporation - ILManufacturingAddison
Advanced Converting Works, dba Flex PackManufacturingItasca
Chips West ChicagoManufacturingWest Chicago
Clarke Mosquito ControlManufacturingRoselle
ENPRO, INC.Distribution & wholesaleADDISON
JNR Custo-matic Screw INC.ManufacturingGlendale Heights
Matrix Design LLCManufacturingBartlett
Northstar Metal Products IncManufacturingGlendale Hts
Thomas Electronics IncManufacturingIllinois
Walker Midwest, LLCManufacturingItasca
AmeriKen Die Supply, Inc.ManufacturingWood Dale
Better4 LLCManufacturingCarol Stream
CHICAGO TESTING LABORATORY INCProfessional services — accounting, engineering, insuranceNORTHBROOK
Distinctive Foods, LLCManufacturingBensenville
Doyle Sign Works, IncManufacturingAddison
Global Gear & Machining, LLCManufacturingDowner Grove
Grundfos Water Utiity, Inc.ManufacturingAurora
Midwest MoldingManufacturingBartlett
Murphy Machine ProductsManufacturingWood dale
Titan Metals IncManufacturingGlendale Heights
Factory Plaza Inc,ManufacturingBensenville
G2 Hinge Company dba S&S Hinge CompanyManufacturingBloomingdale
Marosi Designs LLC, dba BVVManufacturingNaperville
Pregis LLCManufacturingCarol Stream
Reilly Foam CorporationManufacturingKing of Prussia
CAC CorporationManufacturingCarol Stream
Grunt Style, LLCManufacturingCarol Stream
MacLean Power, LLCManufacturingWood Dale
Two Brothers Brewing CompanyManufacturingWarrenville
Chicago White Metal Casting IncManufacturingBensenville
Tuthill CorporationManufacturingBurr Ridge
Waters Of AmericaManufacturingWoodridge
Yorke Printe Shoppe, Inc.ManufacturingLombard
EMR Manufacturing, Inc.ManufacturingWood Dale
Damen Carbide Tool Co IncManufacturingWood Dale
IDI Fabrication Inc.ManufacturingNoblesville
LyondellBasellManufacturingPerrysburg
Mea IncManufacturingElk Grove Village
Mistica Foods, LLCManufacturingAddison
Publishers' Graphics St. Louis, LLCManufacturingEarth City
Altak, IncManufacturingSt. Charles
HA International, LLCManufacturingWestmont
Resource Label GroupManufacturingDes Plaines
Row IncManufacturingAddison
Ballco Manufacturing IncManufacturingAurora
Endotronix, Inc.ManufacturingLisle
Liquitech, INCDefense & federal contractingLombard
Magnuson Group INCDefense & federal contractingWoodridge
Overton Chicago GearManufacturingAddison
DominosManufacturingMarietta

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