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Top Companies in Illinois

Independently verified American companies based in Illinois. Refine by industry, trust badges, and size below.

239 companies listed (34 independently verified) — the largest by market value: AbbVie Inc., Mcdonalds Corp, Abbott Laboratories.

239 companies · updating…

Eton Pharmaceuticals, Inc. DEER PARK, Illinois

EXICURE, INC. CHICAGO, Illinois

FG Imperii Acquisition Corp. ITASCA, Illinois

FG Merger II Corp. ITASCA, Illinois

FIDUS INVESTMENT Corp EVANSTON, Illinois

First America Resources Corp MORRIS, Illinois

FIRST INDUSTRIAL REALTY TRUST INC CHICAGO, Illinois

FIRST MID BANCSHARES, INC. MATTOON, Illinois

FIRST OTTAWA BANCSHARES, INC. OTTAWA, Illinois

FIRST TRUST ENHANCED EQUITY INCOME FUND WHEATON, Illinois

FIRST TRUST HIGH YIELD OPPORTUNITIES 2027 TERM FUND WHEATON, Illinois

First Trust Intermediate Duration Preferred & Income Fund WHEATON, Illinois

FIRST TRUST MORTGAGE INCOME FUND WHEATON, Illinois

FIRST TRUST SENIOR FLOATING RATE INCOME FUND II WHEATON, Illinois

FORESIGHT FINANCIAL GROUP INC WINNEBAGO, Illinois

FreightCar America, Inc. CHICAGO, Illinois

Frequency Holdings, Inc MOKENA, Illinois

Fresh Factory B.C. Ltd. CAROL STREAM, Illinois

FUEL TECH, INC. WARRENVILLE, Illinois

GATX CORP CHICAGO, Illinois

GCM Grosvenor Inc. CHICAGO, Illinois

GIFTIFY, INC. SCHAUMBURG, Illinois

Globaltek Ventures, Inc. CHICAGO, Illinois

GoHealth, Inc. CHICAGO, Illinois