NAICS + PSC page

NAICS 238220 and PSC AD21 contractors

Plumbing, Heating, and Air-Conditioning Contractors. R&D- DEFENSE OTHER: SERVICES (BASIC RESEARCH). Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 238220 + PSC AD21

Last updated: April 6, 2026

Visible recipients

Mapped obligations

$27,776

State overlap

Top recipients

Visible recipients in the NAICS 238220 and PSC AD21 overlap

Emcor Facilities Services, Inc.

Norwalk, CT

Emcor Facilities Services, Inc. is a federal category business profile based in Norwalk, CT. The current public data layer shows $25,848 in visible federal obligations across 5 awards or transactions. Office of Special Counsel appears as the strongest visible awarding agency. Top industry concentration is in NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors). The profile also shows meaningful product and service activity in PSC AD21.

$27,776