Illinois Employer EIN Lookup
Use this IllinoisEIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 38,808 employers based in Illinois have filed a Form 5500, covering 45,668 retirement and health plans with $917.2B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.
Employers
38,808
Plans
45,668
Total assets
$917.2B
Largest employers in Illinois by EIN
Form 5500 search →| Employer | EIN | City | Plans | Participants | Assets |
|---|---|---|---|---|---|
| STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY | 37-0533100 | BLOOMINGTON | 3 | 175,305 | $56.7B |
| TRUSTEES OF CENTRAL STATES, SE AND SW AREAS PENSION FUND | 36-6044243 | CHICAGO | 1 | 38,102 | $48.2B |
| UNITED AIRLINES, INC. | 74-2099724 | CHICAGO | 12 | 273,322 | $34.1B |
| ABBOTT LABORATORIES | 36-0698440 | ABBOTT PARK | 12 | 227,409 | $28.6B |
| DEERE & COMPANY | 36-2382580 | MOLINE | 15 | 162,250 | $26.8B |
| GE HEALTHCARE TECHNOLOGIES INC. | 88-2515116 | CHICAGO | 14 | 97,142 | $24.9B |
| ACCENTURE LLP | 72-0542904 | CHICAGO | 12 | 273,812 | $21.7B |
| TRUSTEES OF CENTRAL STATES, SE & SW AREAS HEALTH & WELFARE FUND | 36-2154936 | CHICAGO | 4 | 227,109 | $19.8B |
| ABBVIE INC. | 32-0375147 | NORTH CHICAGO | 9 | 125,973 | $18.9B |
| EXELON CORPORATION | 23-2990190 | CHICAGO | 20 | 125,771 | $16.8B |
| WALGREEN CO. | 36-1924025 | DEERFIELD | 4 | 659,248 | $14.7B |
| MOTOROLA SOLUTIONS, INC. | 36-1115800 | CHICAGO | 5 | 21,957 | $9.8B |
| HSBC NORTH AMERICA HOLDINGS INC. | 23-2186091 | CHICAGO | 6 | 14,784 | $8.2B |
| TRUSTEES OF UFCW INT'L UNION - INDUSTRY PENSION FUND | 51-6055922 | OAK BROOK | 1 | 20,984 | $8.0B |
| THE UNIVERSITY OF CHICAGO | 36-2177139 | CHICAGO | 11 | 113,542 | $7.5B |
| BMO FINANCIAL CORP. | 51-0275712 | CHICAGO | 7 | 65,004 | $6.4B |
| BOARD OF TRUSTEES OF ECA CHICAGO AND LOCAL UNION 134 IBEW PENSION PLAN | 51-6030753 | ALSIP | 2 | 32,511 | $6.2B |
| TRUSTEES OF THE MIDWEST OPERATING ENGINEERS PENSION TRUST FUND | 36-6140097 | COUNTRYSIDE | 1 | 13,117 | $6.0B |
| ILLINOIS TOOL WORKS INC. | 36-1258310 | GLENVIEW | 11 | 48,610 | $5.9B |
| BAXTER INTERNATIONAL INC. | 36-0781620 | DEERFIELD | 7 | 47,881 | $5.9B |
| NORTHWESTERN UNIVERSITY | 36-2167817 | EVANSTON | 6 | 37,328 | $5.7B |
| NORTHWESTERN MEMORIAL HEALTHCARE | 36-3152959 | CHICAGO | 2 | 78,513 | $5.4B |
| AMSTED INDUSTRIES INCORPORATED | 36-0730380 | CHICAGO | 7 | 18,459 | $5.4B |
| MMS USA HOLDINGS, INC. | 36-2677628 | CHICAGO | 2 | 29,975 | $5.4B |
| SCHNEIDER ELECTRIC HOLDINGS, INC. | 36-4141566 | WESTMONT | 8 | 82,153 | $5.3B |
| BOARD OF TRUSTEES OF MID-AMERICA CARPENTERS REGIONAL COUNCIL PENSION F | 36-6130207 | CHICAGO | 1 | 10,902 | $5.3B |
| BD OF TRUSTEES, CHICAGO & VICINITY LABORERS' DISTR. COUNCIL PENS FUND | 36-2514514 | WESTCHESTER | 2 | 11,406 | $5.2B |
| ZURICH AMERICAN INSURANCE COMPANY | 36-4233459 | SCHAUMBURG | 4 | 23,933 | $5.0B |
| ROBERT BOSCH LLC | 36-2903176 | BROADVIEW | 2 | 14,298 | $4.6B |
| TRUSTEES OF I.B. OF T. UNION LOCAL 710 PENSION FUND | 36-2377656 | MOKENA | 1 | 7,676 | $4.5B |
| CONAGRA BRANDS, INC. | 47-0248710 | CHICAGO | 10 | 52,471 | $4.5B |
| INTERNATIONAL MOTORS, LLC | 36-1264810 | LISLE | 15 | 42,370 | $4.2B |
| ARTHUR J. GALLAGHER (ILLINIOS), LLC. | 36-2481781 | ROLLING MEADOWS | 4 | 51,052 | $4.2B |
| W.W. GRAINGER, INC. | 36-1150280 | LAKE FOREST | 5 | 54,616 | $4.0B |
| PACKAGING CORPORATION OF AMERICA | 36-4277050 | LAKE FOREST | 10 | 35,622 | $4.0B |
| ARCHER DANIELS MIDLAND COMPANY | 41-0129150 | DECATUR | 7 | 54,782 | $3.9B |
| BDO USA, P.C. | 13-5381590 | CHICAGO | 5 | 33,317 | $3.9B |
| JONES LANG LASALLE AMERICAS, INC. | 36-4160760 | CHICAGO | 4 | 74,191 | $3.9B |
| MCDONALDS CORPORATION AND SUBSIDIARIES | 36-2361282 | CHICAGO | 8 | 185,560 | $3.7B |
| DISCOVER FINANCIAL SERVICES | 36-2517428 | RIVERWOODS | 3 | 42,940 | $3.7B |
| KELLANOVA | 38-0710690 | CHICAGO | 7 | 17,380 | $3.6B |
| MCMASTER-CARR SUPPLY COMPANY | 36-1458720 | ELMHURST | 2 | 8,861 | $3.5B |
| SIDLEY AUSTIN LLP | 36-4474078 | CHICAGO | 6 | 9,716 | $3.5B |
| KIRKLAND & ELLIS LLP | 36-1326630 | CHICAGO | 3 | 13,892 | $3.5B |
| MONDELEZ GLOBAL LLC | 38-3869170 | CHICAGO | 15 | 45,187 | $3.4B |
| CONTINENTAL CASUALTY COMPANY | 36-2114545 | CHICAGO | 6 | 21,134 | $3.4B |
| THE NORTHERN TRUST COMPANY | 36-1561860 | CHICAGO | 3 | 19,417 | $3.3B |
| AON CONSULTING, INC. | 22-2232264 | CHICAGO | 1 | 74,793 | $3.1B |
| TRUSTEES OF PIPE FITTERS RETIREMENT FUND LOCAL 597 | 62-6105084 | CHICAGO | 1 | 6,601 | $3.0B |
| S&C ELECTRIC COMPANY | 36-1747665 | CHICAGO | 2 | 6,275 | $2.8B |
| UCHICAGO ARGONNE, LLC ARGONNE NATIONAL LABORATORY | 68-0628477 | LEMONT | 5 | 16,563 | $2.7B |
| RUSH UNIVERSITY MEDICAL CENTER | 36-2174823 | CHICAGO | 4 | 34,883 | $2.7B |
| OLD REPUBLIC INTERNATIONAL CORP. | 36-2678171 | CHICAGO | 3 | 10,349 | $2.6B |
| US FOODS, INC. | 36-3642294 | ROSEMONT | 5 | 76,515 | $2.6B |
| GROWMARK INC. | 37-0815318 | BLOOMINGTON | 8 | 22,724 | $2.5B |
| HYATT CORPORATION | 94-1649123 | CHICAGO | 3 | 64,296 | $2.5B |
| KEHE DISTRIBUTORS, INC. | 27-1729384 | NAPERVILLE | 4 | 27,750 | $2.5B |
| TRUSTEES OF PIPE FITTERS ASSOCIATION LOCAL 597 | 36-1820310 | CHICAGO | 1 | 9,410 | $2.5B |
| CLEVELAND-CLIFFS STEEL LLC | 71-0871875 | CHICAGO | 2 | 738 | $2.5B |
| WOLTERS KLUWER UNITED STATES, INC. | 13-3577870 | RIVERWOODS | 4 | 17,816 | $2.5B |
| ALIGHT SOLUTIONS LLC | 36-2235791 | CHICAGO | 2 | 16,275 | $2.5B |
| ENDEAVOR HEALTH | 87-4520691 | EVANSTON | 2 | 56,673 | $2.3B |
| CDW LLC | 36-3310735 | VERNON HILLS | 1 | 11,353 | $2.3B |
| BOARD OF TRUSTEES OF CARPENTERS PENSION FUND OF ILLINOIS | 36-6147396 | DOWNERS GROVE | 1 | 5,031 | $2.3B |
| DOVER CORPORATION | 53-0257888 | DOWNERS GROVE | 3 | 24,566 | $2.2B |
| UL LLC | 94-3282454 | NORTHBROOK | 4 | 16,512 | $2.2B |
| GRANT THORNTON ADVISORS LLC | 99-1856619 | CHICAGO | 3 | 20,585 | $2.2B |
| REYES HOLDINGS, L.L.C. | 36-4121934 | ROSEMONT | 4 | 48,234 | $2.1B |
| ENDEAVOR HEALTH CLINICAL OPERATIONS | 36-2167060 | EVANSTON | 5 | 29,212 | $2.1B |
| ALDI INC. | 42-1051659 | BATAVIA | 2 | 89,797 | $2.1B |
| MCDERMOTT WILL & EMERY LLP | 36-1453176 | CHICAGO | 9 | 4,749 | $2.0B |
| CC SERVICES, INC. | 81-3990245 | BLOOMINGTON | 1 | 2,424 | $2.0B |
| BOARD OF TRUSTEES OF MID-AMERICA CARP REG COUNCIL SUPPLEMENTAL RETIREM | 80-0636673 | CHICAGO | 1 | 16,383 | $2.0B |
| GRANT THORNTON LLP | 36-6055558 | CHICAGO | 3 | 22,343 | $2.0B |
| BRUNSWICK CORPORATION | 36-0848180 | METTAWA | 6 | 39,635 | $2.0B |
| R. R. DONNELLEY & SONS COMPANY | 36-1004130 | CHICAGO | 5 | 30,161 | $2.0B |
| TRUSTEES OF UFCW UNIONS & EMPLOYERS MIDWEST PENSION FUND | 36-6508328 | DOWNERS GROVE | 2 | 1,670 | $1.9B |
| BD OF TRUSTEES LOCAL 705 I.B. OF T. PENSION TRUST FUND | 36-6492502 | CHICAGO | 1 | 5,166 | $1.9B |
| BOARD OF TRUSTEES OF LINE CONSTRUCTION BENEFIT FUND | 36-6066988 | LOMBARD | 1 | 65,981 | $1.9B |
| ASTELLAS US LLC | 73-1726638 | NORTHBROOK | 3 | 9,077 | $1.9B |
| BOARD OF TRUSTEES OF CENTRAL LABORERS' PENSION FUND | 37-6052379 | JACKSONVILLE | 2 | 16,130 | $1.7B |
| MARMON HOLDINGS, INC | 36-3104690 | CHICAGO | 2 | 31,533 | $1.7B |
| TRUSTEES OF THE PLUMBERS PENSION FUND, LOCAL 130, U.A. | 36-6489579 | CHICAGO | 1 | 3,098 | $1.7B |
| USG CORPORATION | 36-3329400 | CHICAGO | 3 | 19,165 | $1.6B |
| MEDLINE INDUSTRIES,LP | 36-2596612 | NORTHFIELD | 2 | 48,416 | $1.6B |
| TRUSTEES OF UNITE HERE HEALTH | 23-7385560 | OAK BROOK | 4 | 127,870 | $1.6B |
| CSI USA INC. | 32-0671474 | CHICAGO | 1 | 12,475 | $1.6B |
| NECA-IBEW PENSION TRUST FUND | 51-6029903 | DECATUR | 1 | 6,690 | $1.6B |
| HUB INTERNATIONAL LIMITED | 75-3243028 | CHICAGO | 2 | 26,629 | $1.6B |
| THE UNIVERSITY OF CHICAGO MEDICAL CENTER | 36-3488183 | CHICAGO | 9 | 66,774 | $1.5B |
| BOARD OF TRUSTEES OF GC-NPF | 52-6118568 | CAROL STREAM | 1 | 519 | $1.5B |
| FERMI RESEARCH ALLIANCE, LLC | 57-1239010 | BATAVIA | 4 | 5,903 | $1.5B |
| SCOT FORGE COMPANY | 36-2911912 | SPRING GROVE | 7 | 1,560 | $1.5B |
| MAYER BROWN LLP | 36-1447220 | CHICAGO | 3 | 4,472 | $1.5B |
| CHICAGO MERCANTILE EXCHANGE, INC. | 36-4340266 | CHICAGO | 3 | 6,615 | $1.4B |
| UNIVAR SOLUTIONS USA LLC | 91-1347935 | DOWNERS GROVE | 4 | 11,758 | $1.4B |
| MOLEX, LLC | 36-2369491 | LISLE | 3 | 11,801 | $1.4B |
| WINSTON & STRAWN LLP | 36-1975990 | CHICAGO | 4 | 4,663 | $1.4B |
| ACE HARDWARE CORPORATION | 36-0700810 | OAK BROOK | 5 | 27,031 | $1.4B |
| LOYOLA UNIVERSITY OF CHICAGO ATTN BENEFITS DEPARTMENT | 36-1408475 | CHICAGO | 3 | 7,027 | $1.4B |
EINs are drawn from the Form 5500 the employer filed with the U.S. Department of Labor. An employer’s EIN is the same across all of its plans — open a filing to confirm the sponsor name and address before relying on it.
How to find an employer’s EIN in Illinois
Every employer that sponsors a retirement or health plan files a Form 5500 that lists its nine-digit Employer Identification Number. Find a Illinois company in the table above, or run a Form 5500 search by company name to pull the filing and read the EIN directly from it.
For a broader view of plans in the state — including industry breakdowns and the largest plans by assets — see Form 5500 plans in Illinois. New to these filings? Start with What is Form 5500?