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Department of Defense NAICS 541620 and PSC C219 contractors

Environmental Consulting Services. ARCHITECT AND ENGINEERING- GENERAL: OTHER. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541620 · PSC C219
Last updated: April 8, 2026

Visible recipients

21

Mapped obligations

$4,925,279,653

State overlap

4

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541620 and PSC C219

Halff Associates, Inc.

Richardson, TX

Halff Associates, Inc. is a federal category business profile based in Richardson, TX. The current public data layer shows $247,820 in visible federal obligations across 5 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC C1JZ.

$1,229,910
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