NAICS + PSC page

NAICS 541620 and PSC C1JZ contractors

Environmental Consulting Services. ARCHITECT AND ENGINEERING- CONSTRUCTION: MISCELLANEOUS BUILDINGS. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 541620 + PSC C1JZ

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$50,288,573

State overlap

Top recipients

Visible recipients in the NAICS 541620 and PSC C1JZ overlap

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.

$50,288,573