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Department of the Interior NAICS 561210 and PSC Z1AA contractors

Facilities Support Services. MAINTENANCE OF OFFICE BUILDINGS. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of the Interior.

Department of the Interior · NAICS 561210 · PSC Z1AA
Last updated: April 8, 2026

Visible recipients

5

Mapped obligations

$1,280,322,718

State overlap

4

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 561210 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.

$909,060,162

Chenega Tri-services, LLC

San Antonio, TX

Chenega Tri-services, LLC is a federal 8a program participant profile based in San Antonio, TX. The current public data layer shows $35,476,087 in visible federal obligations across 27 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 621111 (Offices of Physicians (except Mental Health Specialists)). The profile also shows meaningful product and service activity in PSC Q403.

$103,353,697

Hensel Phelps Services LLC

Greeley, CO

Hensel Phelps Services LLC is a federal category business profile based in Greeley, CO. The current public data layer shows $3,823,806 in visible federal obligations across 8 awards or transactions. Social Security Administration 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 Z1AA.

$30,090,972

Abm Industries INC

New York, NY

Abm Industries INC is a federal category business profile based in New York, NY. The current public data layer shows $3,787,904 in visible federal obligations across 8 awards or transactions. General Services Administration 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 Z1AA.

$237,770,055

Ryan Companies US INC

Minneapolis, MN

Ryan Companies US INC is a federal category business profile based in Minneapolis, MN. The current public data layer shows $2,279,437 in visible federal obligations across 5 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Z111.

$47,832