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Home/NAICS 541620/PSC R421

NAICS + PSC page

NAICS 541620 and PSC R421 contractors

Environmental Consulting Services. TECHNICAL ASSISTANCE. Cross-code contractor overlap.

NAICS 541620 + PSC R421

Last updated: April 8, 2026

Visible recipients

2

Mapped obligations

$334,094,816

State overlap

0

Top recipients

Visible recipients in the NAICS 541620 and PSC R421 overlap

Cdm Smith Inc.

Carlsbad, CA

Carlsbad, CA | 5 awards | Top agency Department of Defense | NAICS 237990

The Cadmus Group LLC

Arlington, VA

Arlington, VA | 289 awards | Top agency Environmental Protection Agency | NAICS 541620

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NAICS 541620 -- broader view
PSC R421 -- national PSC view