Illinois Employer EIN Lookup
Use this IllinoisEIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 41,095 employers based in Illinois have filed a Form 5500, covering 48,195 retirement and health plans with $935.9B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.
Employers
41,095
Plans
48,195
Total assets
$935.9B
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 | 170,861 | $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 | 227,673 | $31.3B |
| Deere & Company | 36-2382580 | Moline | 15 | 152,098 | $29.9B |
| 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 | 227,081 | $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 | 632,910 | $14.7B |
| Motorola Solutions, Inc. | 36-1115800 | Chicago | 5 | 21,957 | $9.8B |
| HSBC North America Holdings Inc. | 23-2186091 | Chicago | 6 | 14,305 | $8.2B |
| Trustees of UFCW INT'L Union - Industry Pension Fund | 51-6055922 | Oak Brook | 1 | 18,995 | $8.2B |
| The University of Chicago | 36-2177139 | Chicago | 11 | 113,609 | $7.5B |
| Board of Trustees of Mid-America Carpenters Regional Council Pension F | 36-6130207 | Chicago | 1 | 11,246 | $6.4B |
| 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 | 48,147 | $5.9B |
| Baxter International Inc. | 36-0781620 | Deerfield | 7 | 39,853 | $5.9B |
| Northwestern University | 36-2167817 | Evanston | 6 | 37,328 | $5.7B |
| Northwestern Memorial Healthcare | 36-3152959 | Chicago | 2 | 78,513 | $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 |
| 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 |
| Trustees of I.B. of T. Union Local 710 Pension Fund | 36-2377656 | Mokena | 1 | 7,390 | $5.0B |
| Amsted Industries Incorporated | 36-0730380 | Chicago | 7 | 16,865 | $4.7B |
| Robert Bosch LLC | 36-2903176 | Broadview | 2 | 14,298 | $4.6B |
| Conagra Brands, Inc. | 47-0248710 | Chicago | 10 | 52,953 | $4.5B |
| International Motors, LLC | 36-1264810 | Lisle | 15 | 42,235 | $4.5B |
| Packaging Corporation of America | 36-4277050 | Lake Forest | 10 | 36,306 | $4.3B |
| 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 |
| Archer Daniels Midland Company | 41-0129150 | Decatur | 7 | 55,725 | $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 |
| McMaster-CARR Supply Company | 36-1458720 | Elmhurst | 2 | 8,754 | $3.8B |
| The Northern Trust Company | 36-1561860 | Chicago | 3 | 19,365 | $3.8B |
| McDonalds Corporation and Subsidiaries | 36-2361282 | Chicago | 8 | 183,462 | $3.7B |
| Discover Financial Services | 36-2517428 | Riverwoods | 3 | 42,940 | $3.7B |
| Kellanova | 38-0710690 | Chicago | 7 | 17,364 | $3.6B |
| Sidley Austin LLP | 36-4474078 | Chicago | 6 | 9,716 | $3.5B |
| Kirkland & Ellis LLP | 36-1326630 | Chicago | 3 | 14,126 | $3.5B |
| Mondelez Global LLC | 38-3869170 | Chicago | 15 | 45,187 | $3.4B |
| Continental Casualty Company | 36-2114545 | Chicago | 6 | 21,134 | $3.4B |
| 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 |
| Uchicago Argonne, LLC Argonne National Laboratory | 68-0628477 | Lemont | 5 | 16,807 | $2.9B |
| S&C Electric Company | 36-1747665 | Chicago | 2 | 5,853 | $2.8B |
| RUSH University Medical Center | 36-2174823 | Chicago | 4 | 34,883 | $2.7B |
| Old Republic International Corp. | 36-2678171 | Chicago | 3 | 10,349 | $2.6B |
| Alight Solutions LLC | 36-2235791 | Chicago | 2 | 15,051 | $2.6B |
| US Foods, Inc. | 36-3642294 | Rosemont | 5 | 75,706 | $2.6B |
| Growmark Inc. | 37-0815318 | Bloomington | 8 | 22,663 | $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 |
| Endeavor Health | 87-4520691 | Evanston | 2 | 52,990 | $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 | 10,586 | $2.2B |
| Grant Thornton Advisors LLC | 99-1856619 | Chicago | 3 | 20,585 | $2.2B |
| Reyes Holdings, L.L.C. | 36-4121934 | Rosemont | 4 | 48,305 | $2.1B |
| Endeavor Health Clinical Operations | 36-2167060 | Evanston | 5 | 29,212 | $2.1B |
| ALDI Inc. | 42-1051659 | Batavia | 2 | 89,112 | $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 |
| R. R. Donnelley & Sons Company | 36-1004130 | Chicago | 5 | 30,161 | $2.0B |
| Grant Thornton LLP | 36-6055558 | Chicago | 3 | 22,343 | $2.0B |
| Brunswick Corporation | 36-0848180 | Mettawa | 6 | 39,635 | $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 | 10,555 | $1.9B |
| Board of Trustees of Central Laborers' Pension Fund | 37-6052379 | Jacksonville | 2 | 16,579 | $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 | 50,022 | $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 | 68,874 | $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 |
| Depaul University | 36-2167048 | Chicago | 3 | 9,125 | $1.5B |
| SCOT Forge Company | 36-2911912 | Spring Grove | 7 | 1,675 | $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 | 26,760 | $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?
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