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Department of Defense NAICS 541712 and PSC R425 contractors in Illinois
Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology). SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Use this deepest state-buyer cross-code page to see which visible contractors sit in the exact overlap of buyer, geography, industry, and product-service lane.
Illinois · Department of Defense
Last updated: April 8, 2026
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$7,040,852,170
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