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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

Visible recipients in the District of Columbia overlap of NAICS 541990 and PSC H268