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Department of Defense NAICS 541330 and PSC J041 contractors

Engineering Services. MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT. 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 541330 · PSC J041
Last updated: April 6, 2026

Visible recipients

4

Mapped obligations

$927,033,261

State overlap

4

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541330 and PSC J041

M1 Support Services, L.p.

Denton, TX

M1 Support Services, L.p. is a federal category business profile based in Denton, TX. The current public data layer shows $694,713,806 in visible federal obligations across 132 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 488190 (Other Support Activities for Air Transportation). The profile also shows meaningful product and service activity in PSC J015.

$26,213,997

Energy Systems Group LLC

Newburgh, IN

Energy Systems Group LLC is a federal category business profile based in Newburgh, IN. The current public data layer shows $51,362,985 in visible federal obligations across 62 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 R499.

$379,195,006

Trane U.s. Inc.

White Bear Lake, MN

Trane U.s. Inc. is a federal category business profile based in White Bear Lake, MN. The current public data layer shows $31,129,805 in visible federal obligations across 324 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 R499.

$472,495,559

Southland Industries

Sterling, VA

Southland Industries is a federal category business profile based in Sterling, VA. The current public data layer shows $4,836,806 in visible federal obligations across 15 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 R425.

$49,128,699