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Department of Defense contractors in Illinois

Use this state-scoped buyer page to see which visible federal contractors sit closest to Department of Defense inside Illinois.

State: Illinois
Last updated: April 5, 2026

Visible recipients

6

Mapped obligations

$2,014,912,375

Top NAICS links

4

Top recipients

Visible recipients tied to Department of Defense in Illinois

Aar Government Services, Inc.

Wood Dale, IL

Aar Government Services, Inc. is a federal category business profile based in Wood Dale, IL. The current public data layer shows $254,953,145 in visible federal obligations across 429 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 488190 (Other Support Activities for Air Transportation). The profile also shows meaningful product and service activity in PSC J015.

$1,128,622,586

Abbott Laboratories Inc.

Abbott Park, IL

Abbott Laboratories Inc. is a federal category business profile based in Abbott Park, IL. The current public data layer shows $84,432,462 in visible federal obligations across 402 awards or transactions. Department of Veterans Affairs appears as the strongest visible awarding agency. Top industry concentration is in NAICS 334516 (Analytical Laboratory Instrument Manufacturing). The profile also shows meaningful product and service activity in PSC 6640.

$354,276,827

Exp Federal Inc.

Chicago, IL

Exp Federal Inc. is a federal category business profile based in Chicago, IL. The current public data layer shows $33,712,210 in visible federal obligations across 62 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC N059.

$518,959,798

Abbott Molecular Inc.

Des Plaines, IL

Abbott Molecular Inc. is a federal category business profile based in Des Plaines, IL. The current public data layer shows $1,462,145 in visible federal obligations across 85 awards or transactions. Department of Veterans Affairs appears as the strongest visible awarding agency. Top industry concentration is in NAICS 334516 (Analytical Laboratory Instrument Manufacturing). The profile also shows meaningful product and service activity in PSC 6515.

$12,276,566

Illinois Applied Research Associates LLC

Glen Ellyn, IL

Illinois Applied Research Associates LLC is a federal category business profile based in Glen Ellyn, IL. The current public data layer shows $726,495 in visible federal obligations across 3 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541712 (Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)). The profile also shows meaningful product and service activity in PSC AC22.

$726,495

Dss, INC

Saint Charles, IL

Dss, INC is a federal category business profile based in Saint Charles, IL. The current public data layer shows $105,789 in visible federal obligations across 5 awards or transactions. Department of Veterans Affairs appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541519 (Other Computer Related Services). The profile also shows meaningful product and service activity in PSC 6515.

$50,103

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Industry paths for Department of Defense in Illinois

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Product and service paths for Department of Defense in Illinois