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Manufacturing in Winnebago County, Illinois

The city of Winnebago, Illinois, is located in the state of Illinois. This register lists 575 facilities. The Bureau of Labor Statistics counted 527 establishments in Winnebago in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and benchmark

Biggest cities

Federal labor statistics counted at least 527 manufacturing establishments in Winnebago County in 2025, employing about 22,164 people, counting only the industry subsectors the Bureau of Labor Statistics discloses at this level. This registry lists 575.

Facilities342 FACILITIES

Listing 342 of 575: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityIndustryNAICSEmployeesStatus
Azz Galvanizing Rockford LLC Dba Roger Bros Galvanizing LLCRockfordFabricated Metal Product Manufacturing332812— LIKELY ACTIVE
Circle Boring & Machine CO INCRockfordFabricated Metal Product Manufacturing3327101–19 LIKELY ACTIVE
Concentric Rockford INCRockfordMachinery Manufacturing333996— LIKELY ACTIVE
Ecolab INCRoscoeMachinery Manufacturing333248— LIKELY ACTIVE
Economy Fasteners INCRockfordFabricated Metal Product Manufacturing332811— LIKELY ACTIVE
Jl Clark INCRockfordPrinting and Related Support Activities323111— LIKELY ACTIVE
Kent Nutrition Group INCRockfordFood Manufacturing311119— LIKELY ACTIVE
Mnp Precision Parts LLCRockfordFabricated Metal Product Manufacturing332722— LIKELY ACTIVE
Mte Hydraulics, INC.RockfordMachinery Manufacturing333996— LIKELY ACTIVE
Parker Hannifin/cylinder DivisionRockfordMachinery Manufacturing333995— LIKELY ACTIVE
Rocknel Fastener INCRockfordFabricated Metal Product Manufacturing332722— LIKELY ACTIVE
Rust OleumRockfordChemical Manufacturing325510— LIKELY ACTIVE
Sherwin Williams CO theRockfordChemical Manufacturing325510— LIKELY ACTIVE
Testor CORPRockfordChemical Manufacturing325510— LIKELY ACTIVE
The Testor Corporation - Blackhawk Park AvenueRockfordChemical Manufacturing325510— LIKELY ACTIVE
Tpg Pressure INCSouth BeloitNonmetallic Mineral Product Manufacturing327332— LIKELY ACTIVE
Valspar - Rockford FacilityRockfordChemical Manufacturing325510— LIKELY ACTIVE
Barnes International INCRockfordMachinery Manufacturing333999100–499 UNVERIFIED
Adapt Plastics, INC.Loves ParkPlastics and Rubber Products Manufacturing32619920–99 LIKELY ACTIVE
Evergreen Warehouse INCRockfordFabricated Metal Product Manufacturing332721— LIKELY ACTIVE
Forging & Stampings, INC.RockfordFabricated Metal Product Manufacturing33211120–99 LIKELY ACTIVE
Hennig, INCMachesney ParkFabricated Metal Product Manufacturing332322100–499 LIKELY ACTIVE
Swebco Mfg INCMachesney ParkFabricated Metal Product Manufacturing33272120–99 LIKELY ACTIVE
Action Tool & MfgRockfordMiscellaneous Manufacturing3399991–19 LIKELY ACTIVE
American Extrusion InternationalSouth BeloitMachinery Manufacturing33329420–99 LIKELY ACTIVE
Certified Technology INCRockfordFabricated Metal Product Manufacturing3328131–19 LIKELY ACTIVE
Drawing Technology INCRockfordMachinery Manufacturing33351820–99 LIKELY ACTIVE
Heartwood CreationsRockfordFabricated Metal Product Manufacturing33291920–99 LIKELY ACTIVE
Rockford Bolt and Steel CompanyRockfordFabricated Metal Product Manufacturing33272220–99 LIKELY ACTIVE
Rockford Burrall MachineRockfordMachinery Manufacturing33331920–99 LIKELY ACTIVE
Rusco Manufacturing INCMachesney ParkFabricated Metal Product Manufacturing33271020–99 LIKELY ACTIVE
Spider Company INCMachesney ParkFabricated Metal Product Manufacturing332322100–499 LIKELY ACTIVE
ChemtoolRocktonPetroleum and Coal Products Manufacturing324191— UNVERIFIED
H&m MachiningMachesney ParkFabricated Metal Product Manufacturing33261820–99 UNVERIFIED
International Paper CORockfordPaper Manufacturing322211— UNVERIFIED
Mondelez Global LLCRockfordFood Manufacturing311340— UNVERIFIED
Printjet CORPMachesney ParkMachinery Manufacturing333993— UNVERIFIED
Treehouse Private Brands INCSouth BeloitFood Manufacturing311812— UNVERIFIED
American Aluminum Extrusion HQ (Roscoe IL)RoscoePrimary Metal Manufacturing331316100–499 LIKELY ACTIVE
Behr Iron & MetalRockfordPrimary Metal Manufacturing331314— LIKELY ACTIVE
Dixon Automatic Tool INCRockfordMachinery Manufacturing33324920–99 LIKELY ACTIVE
Eaton HydraulicsMachesney ParkFabricated Metal Product Manufacturing332322— LIKELY ACTIVE
Eickman's Processing Company, INC.SewardFood Manufacturing311611— LIKELY ACTIVE
Freeway of RockfordRockfordFabricated Metal Product Manufacturing332722— LIKELY ACTIVE
Ge Aviation Systems LLCLoves ParkFabricated Metal Product Manufacturing332911— LIKELY ACTIVE
Hamilton Sundstrand CorporationRockfordTransportation Equipment Manufacturing336412— LIKELY ACTIVE
Hamilton Sundstrand CorporationRockfordTransportation Equipment Manufacturing336412— LIKELY ACTIVE
Jamco Products, INC.South BeloitFabricated Metal Product Manufacturing332999100–499 LIKELY ACTIVE
Jamco Products, INC.South BeloitFabricated Metal Product Manufacturing332999100–499 LIKELY ACTIVE
Komline-BarnesRockfordMachinery Manufacturing333999100–499 LIKELY ACTIVE

Search all 17,137 Illinois facilities