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NAICS 238990 and PSC Z1AA contractors in Maryland

All Other Specialty Trade Contractors. MAINTENANCE OF OFFICE BUILDINGS. Use this deeper state cross-code page to see which visible contractors sit in the overlap between these two lanes inside Maryland.

Maryland · NAICS 238990 · PSC Z1AA

Last updated: April 6, 2026

Visible recipients

Mapped obligations

$223,392,681

Buyer overlap

Top recipients

Visible recipients in the Maryland overlap of NAICS 238990 and PSC Z1AA

Lb & B Associates INC

Columbia, MD

Lb & B Associates INC is a federal category business profile based in Columbia, MD. The current public data layer shows $72,461,078 in visible federal obligations across 249 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561210 (Facilities Support Services). The profile also shows meaningful product and service activity in PSC J069.

$223,392,681