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NAICS 541990 and PSC H268 contractors in District of Columbia
All Other Professional, Scientific, and Technical Services. EQUIPMENT AND MATERIALS TESTING- CHEMICALS AND CHEMICAL PRODUCTS. Use this deeper state cross-code page to see which visible contractors sit in the overlap between these two lanes inside District of Columbia.
District of Columbia · NAICS 541990 · PSC H268
Last updated: April 7, 2026
Visible recipients
1
Mapped obligations
$25,435,162
Buyer overlap
4
Top recipients
