Federal Contractor Ranking
Top 50 Federal Contractors in Illinois
The 50 largest federal contractors headquartered in Illinois by total obligated dollars (FY2016–FY2026), based on recipient state address from USAspending.gov.
| Rank | Contractor | Total Obligated |
|---|---|---|
| #1 | Uchicago Argonne, LLC UEI JA8EP8EKX8Y9 | $11B |
| #2 | Northrop Grumman Systems Corporation UEI E4X3BLZPPPX3 | $8.6B |
| #3 | Bp Products North America INC. UEI RDHYLFA8JAB4 | $8.4B |
| #4 | Cardinal Health 200, LLC UEI ZJEUBM5FYLQ2 | $6.6B |
| #5 | W S Darley & CO UEI TENRPZGMAGJ6 | $6.6B |
| #6 | Cdw Government LLC UEI PHZDZ8SJ5CM1 | $6.2B |
| #7 | Fermi Research Alliance, LLC UEI E1EUJL3KLKX5 | $4.6B |
| #8 | Supplycore LLC UEI HTYJC5P9ZMH5 | $4.3B |
| #9 | Hii Mission Technologies Corp UEI GS7HBMNZEMK3 | $3.6B |
| #10 | Medline Industries, LP UEI DMPAKJ9N9K66 | $3.0B |
| #11 | Ddb Chicago INC. UEI ZYCVPMAU6MH8 | $2.7B |
| #12 | Great Lakes Dredge & Dock CO, LLC UEI M9LFLA6K8HE4 | $2.7B |
| #13 | Walsh Federal LLC UEI DMFWBVTL9324 | $2.5B |
| #14 | Aar Government Services, INC. UEI GFWVNNYFEVR2 | $2.1B |
| #15 | W.w. Grainger, INC. UEI DBQGN324ULK3 | $2.1B |
| #16 | Dms Pharmaceutical Group INC UEI PX72BSBQTKJ3 | $2.1B |
| #17 | Fermi Forward Discovery Group, LLC UEI VLS6K3EVCMW5 | $2.0B |
| #18 | Walgreen CO. UEI HRE3UMLEM2P5 | $2.0B |
| #19 | Caterpillar INC UEI C9C6HPQLL4A8 | $1.9B |
| #20 | US Foods INC UEI HZYTJENLLM81 | $1.9B |
| #21 | General Dynamics Ordnance & Tactical Systems, INC. UEI D6BENLPTJ8H6 | $1.8B |
| #22 | Sonova USA INC UEI N5VSMWF4G7K7 | $1.8B |
| #23 | National Opinion Research Center UEI MPYFY5UMSDP4 | $1.6B |
| #24 | Archer Western Federal Jv UEI C277DHXWNTU9 | $1.5B |
| #25 | Aar Supply Chain, INC UEI TWJNLZXJ39F1 | $1.3B |
| #26 | Covenant Aviation Security, LLC UEI C8GANE5B4W83 | $1.3B |
| #27 | Kay And Associates, INC. UEI NHQJPMYJEVJ9 | $1.3B |
| #28 | Walsh - Turner Jv Ii UEI MKEHYFKZMB23 | $955M |
| #29 | Serco-ips Corporation UEI RGEBPDP8RV96 | $900M |
| #30 | Abbott Laboratories INC. UEI NH3LDK8CFAK7 | $896M |
| #31 | Archer-daniels-midland Company UEI N1EULGPZUSK3 | $875M |
| #32 | Richard Group LLC UEI QST7A5N63TL4 | $751M |
| #33 | Nd Defense LLC UEI NAX6BAMAUNG9 | $697M |
| #34 | Wieland Rolled Products North America, LLC UEI LCCMM1A56RP1 | $696M |
| #35 | Paragon Micro INC UEI E41LV9AJGHQ1 | $633M |
| #36 | Walsh Construction Company Ii, LLC UEI N64NCQ58JL25 | $632M |
| #37 | Cherry Meat Packers, INC UEI VKTSH6PAV4N4 | $630M |
| #38 | Olin Corp UEI LLJEMMN9E1G7 | $628M |
| #39 | Washington Group/alberici Joint Venture UEI MUSXVFYMGC14 | $533M |
| #40 | Siemens Industry INC UEI JZXZSN3BBL98 | $528M |
| #41 | Jones Lang Lasalle Americas, INC. UEI RJ7MF1XTJN88 | $512M |
| #42 | Luhr Bros., INC. UEI UBFLQ7H2KN58 | $432M |
| #43 | Phonak L L C UEI CC4WA5DWJL16 | $390M |
| #44 | Exp Federal INC. UEI LJJ6DGARYF48 | $375M |
| #45 | Pernix International, LLC UEI PJ63GJ3LMJJ4 | $366M |
| #46 | Ac Jv One LLC UEI N6CTZBFDV5J6 | $365M |
| #47 | Vista Defense Technologies, LLC UEI UM22ZL79EQ53 | $351M |
| #48 | Woodward, INC. UEI L4UCL5K5H5J9 | $349M |
| #49 | Incobrasa Industries LTD UEI CSRFGBYGE7N5 | $345M |
| #50 | Belleville Shoe Manufacturing Company UEI CFGLCJAJKT86 | $337M |
Source: USAspending.gov, FY2016–FY2026. Mindy aggregates by contractor legal name and rolls up parent + subsidiary UEI relationships. Click any row to view full contracting profile.
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