US Business Index

Illinois companies

Illinois is home to 188 companies indexed here, drawn from public records. Of these, 63 are publicly traded and file with the SEC, so their headline financials carry dated filings. Browse the full list below, or narrow by industry. Every entry links back to its public sources.

Public companies in Illinois (63)Technology (5)Finance (25)Healthcare (7)Retail (14)Manufacturing (11)Energy (3)Media (2)Transportation (7)Food and Beverage (18)Telecom (5)Aerospace Defense (2)Professional Services (3)Consumer Goods (3)

All Illinois companies

CompanyIndustryTypeTickerRevenue (dated)
Abbott LaboratoriesTechnology, HealthcarepublicABT$44B (FY 2025)
AbbvieTechnology, HealthcarepublicABBV$61B (FY 2025)
AllstateFinancepublicALL$68B (FY 2025)
Archer Daniels MidlandFood and BeveragepublicADM$25B (FY 2025)
BaxterHealthcarepublicBAX$11B (FY 2025)
BoeingReal Estate, Aerospace DefensepublicBA$77B (FY 2019)
CDW—publicCDW$22B (FY 2025)
CF IndustriesManufacturingpublicCF$7.1B (FY 2025)
CME GroupFinancepublicCME$6.5B (FY 2025)
CNA FinancialFinancesubsidiaryCNA$1.6B (FY 2025)
Dover Corporation—publicDOV$8.1B (FY 2025)
ExelonEnergypublicEXC$24B (FY 2025)
GE HealthcareTechnology, Healthcare, ManufacturingpublicGEHC$21B (FY 2025)
GrouponRetailpublicGRPN$498M (FY 2025)
IngredionHealthcare, Food and BeveragepublicINGR$7.2B (FY 2025)
Kemper CorporationFinancepublicKMPR$4.8B (FY 2025)
Kraft HeinzFood and Beverage, Consumer GoodssubsidiaryKHC$25B (FY 2025)
Mondelez InternationalFood and BeveragepublicMDLZ$39B (FY 2025)
Morningstar, Inc.FinancepublicMORN$2.4B (FY 2025)
Motorola SolutionsTelecompublicMSI$12B (FY 2025)
Old Republic InternationalFinancepublicORI$9.1B (FY 2025)
RLI Corp.FinancepublicRLI$1.9B (FY 2025)
Ulta BeautyConsumer GoodspublicULTA$12B (FY 2026)
Vivid Seats—publicSEAT$451M (FY 2025)
W. W. Grainger—publicGWW$18B (FY 2025)
Arthur J. Gallagher & Co.—publicAJG$14B (FY 2025)
Cars.com—publicCARS$723M (FY 2025)
Cboe Global Markets—publicCBOE$2.2B (FY 2017)
Conagra BrandsFood and BeveragepublicCAG$12B (FY 2025)
Donnelley Financial Solutions—publicDFIN$767M (FY 2025)
GoHealthHealthcarepublicGOCOQ$362M (FY 2025)
Northern TrustFinancepublicNTRS$5.0B (FY 2025)
Packaging Corporation of America—publicPKG$9.0B (FY 2025)
QCR HoldingsFinancepublicQCRH$166M (FY 2017)
United AirlinesTransportationsubsidiaryUAL$59B (FY 2025)
Zebra TechnologiesTechnologypublicZBRA$5.4B (FY 2025)
DeereManufacturingpublic——
Discover FinancialFinancepublic——
Essendant—public——
Federal Signal CorporationTransportationpublic——
Hill-Rom—subsidiary——
HyattHealthcarepublic——
IL Tool WorksManufacturingpublic——
JLL—public——
Kraft FoodsFood and Beverage, Consumer Goodssubsidiary——
McDonald'sFood and Beveragepublic——
Portillo's RestaurantsFood and Beveragepublic——
Potbelly Sandwich ShopFood and Beveragepublic——
RR Donnelley—public——
Sears & RoebuckRetailsubsidiary——
Sears HoldingsRetailpublic——
Telephone and Data SystemsTelecompublic——
TennecoTransportationpublic——
WalgreenRetailsubsidiary——
Walgreens Boots AllianceRetailpublic——
Anixter—public——
Busey BankFinancepublic——
Byline BankFinancepublic——
CRRC Sifang AmericaManufacturingpublic——
Gardner Denver—public——
Titan Tire Corporation—public——
United ContinentalTransportationsubsidiary——
WintrustFinancepublic——
Abt ElectronicsRetailprivate——
Adams Street Partners—private——
ArmaLite—private——
Axium Foods—private——
Bell Sports—private——
BenchPrep—private——
BMO USFinancesubsidiary——
BraintreeFinancesubsidiary——
Brewer Investment Group—private——
Citizens Equity First Credit UnionFinance———
CIVC Partners—private——
Country Financial—private——
Dawn Equipment CompanyManufacturing, Food and Beverageprivate——
Dot FoodsFood and Beverageprivate——
Ferrara Candy Company—subsidiary——
Follett CorporationRetailprivate——
Frasca International—private——
Glik'sRetailprivate——
Golub Capital—private——
Greenlee—subsidiary——
GrowmarkFood and Beverageprivate——
Grubhub—subsidiary——
Harrisonville Telephone CompanyTelecomprivate——
Hilander FoodsRetailprivate——
IMC Financial MarketsFinanceprivate——
Jenner & Block—private——
Jimmy John'sFood and Beverageprivate——
Kirkland & EllisProfessional Servicesprivate——
Madison Dearborn Partners—private——
Maui Jim—private——
McDermott Will & Emery—private——
Mesirow FinancialFinance———
Montgomery WardRetailprivate——
Motorola MobilityTelecomsubsidiary——
Nalco Holding Company—private——
NavistarTransportationsubsidiary——
NuveenFinanceprivate——
OfficeMaxRetailsubsidiary——
ParkWhiz—private——
Peapod—private——
Safeway Insurance GroupFinanceprivate——
Sidley Austin—private——
Skidmore, Owings & MerrillProfessional Servicesprivate——
Springfield Armory, Inc.—private——
State FarmFinanceprivate——
Testor Corporation—private——
Thoma Bravo—private——
Western Cartridge Company—private——
Winston & Strawn—private——
Wolfram Research, Inc.Technologyprivate——
Wrigley CompanyFood and Beveragesubsidiary——
A. E. Staley—private——
Alliant Credit Union—nonprofit——
Alton Steel—private——
American River Transportation CompanyFood and Beverageprivate——
AmocoEnergyprivate——
Astro-Physics—private——
Aventine Renewable Energy—private——
Basler Electric—private——
Beer NutsFood and Beverageprivate——
Believers Broadcasting Corporation————
Belly—private——
Black Dog Books————
Bunn-O-Matic Corporation—private——
City Water, Light & Power————
Consolidated CommunicationsTelecomprivate——
Container Corporation of America—private——
Credit Union 1Financeprivate——
DeKalb Genetics Corporation—private——
Elliott Aviation—private——
EstwingManufacturingprivate——
Fortune————
GlobalTap—private——
Group O—private——
GTCR—private——
Hillshire Brands—subsidiary——
Hobbico—private——
Horace Mann Educators CorporationFinanceprivate——
Horizon Hobby—private——
Ideal IndustriesManufacturingprivate——
Illinois National BankFinanceprivate——
InvenergyEnergyprivate——
Katten Muchin Rosenman—private——
Kress Corporation—private——
Legacy Audio—private——
Levi, Ray & Shoup—private——
Life Fitness—private——
Lightbank—private——
Lincoln Land Express————
Mayer Brown—private——
Meatheads Burgers & Fries—private——
Metropolitan Educational Enterprises—private——
Monical's PizzaFood and Beverage———
Morton Salt—subsidiary——
Mrs. Fisher's—private——
National Railway Equipment CompanyTransportationprivate——
Nortrax—private——
Oberweis DairyFood and Beverageprivate——
Pacific Bearing CompanyManufacturingprivate——
Pactiv—private——
Peoria Charter Coach Company—private——
Pioneer RailcorpTransportationprivate——
Plochman's————
Quincy MediaMediaprivate——
Road RangerRetail———
Rock River ArmsManufacturingprivate——
Rural KingRetailprivate——
Ryan International Airlines————
Shakespeare Squared—private——
Shaw Media—private——
SpotHero—private——
STARadio Corporation—private——
Suburban Express————
Sundstrand CorporationAerospace Defenseprivate——
The Frantz Manufacturing Company—private——
Thomas Research Products—private——
Tower Hobbies————
Trend Is Dead! Records————
Tri-State Christian Television————
Uptake—private——
VolitionMediasubsidiary——
Wahl Clipper—private——
West Monroe PartnersFinance, Retail, Manufacturing, Professional Servicesprivate——
Wicks Organ Company—private——
Wiss, Janney, Elstner Associates, Inc.—private——
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