Employer benefit plans in Illinois

1,822 Illinois employers have an insured group benefit plan on public Form 5500 record, covering 4,039,178 participants across 7,838 Schedule A contracts. Reported premium totals $9.4B, with $257.2M in disclosed broker commissions. Renewals cluster in December — 76% of plans.

Sourced from U.S. DOL EFAST2 Form 5500 · Schedule A · as of Aug 2026

Employer plans

1,822

Participants

4,039,178

Premium on file

$9.4B

Broker commissions

$257.2M

When Illinois plans renew

Employer plans by the month their most recent Schedule A policy period ended.

25Jan
30Feb
46Mar
32Apr
46May
87Jun
37Jul
44Aug
51Sep
27Oct
16Nov
1,381Dec

Largest employer plans in Illinois

By total annual premium reported on Schedule A.

UNITED AIRLINES, INC.CHICAGORenews December$381.8Mpremium MCDONALDS LICENSEES HEALTH AND WELFARE TRUSTCHICAGORenews December$251.5Mpremium BOARD OF TRUSTEES OF MID-AMERICA CARPENTERS REGIONAL COUNCIL HEALTH FUCHICAGORenews December$205.3Mpremium STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANYBLOOMINGTONRenews December$157.2Mpremium NORTHWESTERN UNIVERSITYEVANSTONRenews December$145Mpremium HUB INTERNATIONAL LIMITEDOAKBROOK TERRACERenews December$143.8Mpremium PACTIV EVERGREEN SERVICES INC.LAKE FORESTRenews December$141.4Mpremium WALGREEN CO.DEERFIELDRenews December$141Mpremium THE UNIVERSITY OF CHICAGO MEDICAL CENTERCHICAGORenews June$128.7Mpremium HYATT CORPORATIONCHICAGORenews December$123.1Mpremium TRUSTEES OF UNITE HERE HEALTHOAK BROOKRenews December$122.3Mpremium THE UNIVERSITY OF CHICAGOCHICAGORenews December$114.6Mpremium GE HEALTHCARE TECHNOLOGIES INC.CHICAGORenews December$105Mpremium TRANSDEV SERVICES, INC.LOMBARDRenews December$91.3Mpremium THE ASPEN GROUP (TAG)CHICAGORenews December$85.1Mpremium DOT HOLDINGS COMT. STERLINGRenews December$76.7Mpremium DOT FOODS INCMT. STERLINGRenews December$74.4Mpremium AUTOMOBILE MECHANICS' LOCAL NO. 701 UNION AND INDUSTRY WELFAREBURR RIDGERenews December$71.6Mpremium JONES LANG LASALLE AMERICAS, INC.CHICAGORenews December$67.3Mpremium GUARANTEED RATE, INC.CHICAGORenews December$57.5Mpremium TRANS UNION LLCCHICAGORenews December$57.1Mpremium LOCAL NO. 731 I B OF T HEALTH AND WELFARE FUNDBURR RIDGERenews March$57Mpremium SWEDISHAMERICAN HEALTH SYSTEM CORPROCKFORDRenews December$53.5Mpremium SP PLUS CORPORATIONCHICAGORenews December$51.7Mpremium DISCOVER FINANCIAL SERVICESRIVERWOODSRenews December$50.1Mpremium CUSHMAN & WAKEFIELDCHICAGORenews December$50Mpremium DURHAM SCHOOL SERVICESLISLERenews December$48.3Mpremium REYES HOLDINGS, LLCROSEMONTRenews December$40.8Mpremium US FOODS, INC.ROSEMONTRenews December$37.8Mpremium SARGENT & LUNDY, L.L.C.CHICAGORenews December$37.8Mpremium CULLIGAN INTERNATIONAL COMPANYROSEMONTRenews December$37.3Mpremium SIDLEY AUSTIN LLPCHICAGORenews December$35.8Mpremium BMO FINANCIAL CORP.CHICAGORenews December$35.5Mpremium MEDLINE INDUSTRIES, LPNORTHFIELDRenews December$33Mpremium AAR CORP.WOOD DALERenews December$32.8Mpremium ENDEAVOR HEALTHEVANSTONRenews December$32Mpremium TRANSFORM MIDCO LLCHOFFMAN ESTATESRenews December$30.8Mpremium AMPLIFY HR MANAGEMENT LLCNORTHBROOKRenews March$29.5Mpremium KNAPHEIDE MANUFACTURING COQUINCYRenews December$28.9Mpremium BOARD OF TRUSTEES OF CENTRAL ILLINOIS CARPENTERS HEALTH AND WELFARE FULINCOLNRenews December$28.7Mpremium EUROMARKET DESIGNS, INC.NORTHBROOKRenews December$27.5Mpremium WEST STAR AVIATION LLCEAST ALTONRenews December$26.6Mpremium TRUSTEES OF IB OF T UNION LOCAL 710 HEALTH & WELFARE FUNDMOKENARenews December$26.4Mpremium NORTHWESTERN MEMORIAL HEALTHCARECHICAGORenews December$26.2Mpremium MORRIS HOSPITAL & HEALTHCARE CENTERSMORRISRenews December$26.1Mpremium KEYSTONE CAPITAL MANAGEMENT LPCHICAGORenews December$26Mpremium INGREDION INCORPORATEDWESTCHESTERRenews December$25.6Mpremium BMO FINANCIAL CORPCHICAGORenews August$25.5Mpremium ULTA SALON, COSMETICS & FRAGRANCES, INC.BOLINGBROOKRenews August$25.2Mpremium ARTHUR J. GALLAGHER (ILLINOIS), LLCROLLING MEADOWSRenews December$25.1Mpremium

Most active brokers in Illinois

Brokers of record based in Illinois, by disclosed commissions.

MERCER HEALTH AND BENEFITS, LLCCHICAGO6,489contracts MERCER HEALTH & BENEFITS LLCCHICAGO2,646contracts AON CONSULTINGCHICAGO3,732contracts GALLAGHER BENEFIT SERVICES, INC.ROLLING MEADOWS3,997contracts GALLAGHER BENEFIT SERVICES, INC.CHICAGO2,974contracts GALLAGHER BENEFIT SERVICES, INC.ARLINGTON HEIGHTS1,839contracts AON INSURANCE AGENCY LLCCHICAGO545contracts LOCKTON COMPANIES, LLCCHICAGO1,106contracts MARSH & MCLENNAN AGENCY LLCSCHAUMBURG929contracts HUB INTERNATIONAL MIDWEST LIMITEDCHICAGO1,101contracts WILLIS TOWERS WATSON MIDWEST, INCCHICAGO1,092contracts GIS BENEFITS INCMORRIS5,043contracts GALLAGHER BENEFIT SERVICES, INC.ITASCA236contracts WILLIS TOWERS WATSON SOUTHEAST INCCHICAGO454contracts AON INSURANCE AGENCY LLCLINCOLNSHIRE115contracts HEWITT INSURANCE BROKERAGE LLCCHICAGO123contracts THE PLEXUS GROUPE LLCDEER PARK353contracts GCG FINANCIAL, LLCDEERFIELD424contracts USI INSURANCE SERVICESCHICAGO302contracts ALLIANT INSURANCE SERVICES INCCHICAGO337contracts THE HORTON GROUP INCORLAND PARK596contracts STUMM INSURANCE LLCROSEMONT226contracts ASSOCIATED AGENCIES, INCROLLING MEADOWS261contracts HEWITT INS BROKERAGE LLCCHICAGO117contracts BENEFITS SOLUTIONS GROUP LLCWESTCHESTER12contracts

Carriers writing Illinois groups

By number of Illinois employer plans on file.

Looking for a specific company? Search every Form 5500 filer — including self-funded and small plans that don’t appear in these lists.