Agency + NAICS page

Department of the Interior NAICS 561210 contractors

Facilities Support Services. Use this buyer-scoped industry page to see which visible contractors sit closest to this NAICS lane under Department of the Interior.

Agency: Department of the Interior
Last updated: April 8, 2026

Visible recipients

36

Mapped obligations

$10,968,401,113

Top PSC links

4

Top recipients

Visible recipients tied to Department of the Interior and NAICS 561210

Aptim Federal Services, LLC

Baton Rouge, LA

Aptim Federal Services, LLC is a federal category business profile based in Baton Rouge, LA. The current public data layer shows $148,966,212 in visible federal obligations across 303 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 562910 (Remediation Services). The profile also shows meaningful product and service activity in PSC F999.

$464,639,182

Emr, Inc.

Freeport, FL

Emr, Inc. is a federal category business profile based in Freeport, FL. The current public data layer shows $116,062,831 in visible federal obligations across 75 awards or transactions. Department of Defense 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 Y1JZ.

$6,140,225

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.

$725,033,134

Marcon Engineering, INC

Escondido, CA

Marcon Engineering, INC is a federal category business profile based in Escondido, CA. The current public data layer shows $64,752,480 in visible federal obligations across 5 awards or transactions. Department of Defense 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 Z299.

$4,144,388

Relyant Global LLC

Maryville, TN

Relyant Global LLC is a federal category business profile based in Maryville, TN. The current public data layer shows $58,619,056 in visible federal obligations across 66 awards or transactions. Department of Defense 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 F108.

$13,458,663

S & K Technologies, Inc.

Saint Ignatius, MT

S & K Technologies, Inc. is a federal american indian owned business profile based in Saint Ignatius, MT. The current public data layer shows $56,815,347 in visible federal obligations across 5 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 R706.

$31,573,047

Dlh Solutions INC

Atlanta, GA

Dlh Solutions INC is a federal category business profile based in Atlanta, GA. The current public data layer shows $54,741,501 in visible federal obligations across 68 awards or transactions. Department of Veterans Affairs appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561320 (Temporary Help Services). The profile also shows meaningful product and service activity in PSC R604.

$327,307,355

Cherokee Nation System Solutions LLC

Tulsa, OK

Cherokee Nation System Solutions LLC is a federal 8a program participant profile based in Tulsa, OK. The current public data layer shows $52,028,893 in visible federal obligations across 480 awards or transactions. Department of State 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 R408.

$201,161,797

The Whitestone Group, Inc.

Reynoldsburg, OH

The Whitestone Group, Inc. is a federal category business profile based in Reynoldsburg, OH. The current public data layer shows $44,135,018 in visible federal obligations across 67 awards or transactions. Department of Transportation appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$3,180,900

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.

$79,781,584
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