NAICS + PSC page

NAICS 811310 and PSC Z1NB contractors

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance. MAINTENANCE OF HEATING AND COOLING PLANTS. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 811310 + PSC Z1NB

Last updated: April 6, 2026

Visible recipients

Mapped obligations

$144,251,642

State overlap

Top recipients

Visible recipients in the NAICS 811310 and PSC Z1NB overlap

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.

$144,251,642