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General Services Administration NAICS 561990 and PSC R425 contractors in Michigan
All Other Support Services. 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.
Michigan · General Services Administration
Last updated: April 2, 2026
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$1,564,869,698
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