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NAICS code 561611 federal contractors and awards

Investigation and Personal Background Check Services. Use this page when the search starts with a specific NAICS code and you want the visible contractor, buyer, and award footprint behind it.

Category code: 561611

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$5,483,153,963

Buyer overlap

Top recipients

Recipients most visible in this category

Caci Premier Technology, LLC

Chantilly, VA

Top buyer: Office of Personnel ManagementRecent award: 2019-10-01

$1,466,641,730

Peraton Risk Decision Inc.

Loveland, CO

Top buyer: Office of Personnel ManagementRecent award: 2026-02-14

$3,713,951,336

Chenega Naswik International LLC

Chantilly, VA

Top buyer: Department of DefenseRecent award: 2026-06-01

$3,540,948

Asrc Federal Professional Services, LLC

Beltsville, MD

Top buyer: Department of DefenseRecent award: 2027-01-31

$280,674,683

Ho-chunk Shared Services Company

Winnebago, NE

Top buyer: Department of DefenseRecent award: 2025-12-29

$16,618,619

Old Harbor Solutions LLC

Anchorage, AK

Top buyer: Department of DefenseRecent award: 2026-04-01

$1,726,647

Browse by dimension

State, agency, and service-code paths

States

Virginia

2 recipients · $1,783,976,348

Colorado

1 recipients · $210,620,024

Maryland

1 recipients · $40,726,774

Nebraska

1 recipients · $19,660,609

Alaska

1 recipients · $10,828,855

Agencies

Office of Personnel Management

Open the agency-scoped NAICS view.

Department of Defense

Open the agency-scoped NAICS view.

PSC

PSC R422

2 recipients · $2,500,207,778

PSC R615

3 recipients · $2,146,234,294

PSC R499

5 recipients · $691,789,093

PSC R799

2 recipients · $193,878,930

PSC R425

2 recipients · $126,276,904

PSC R699

2 recipients · $7,034,028

Explore rankings

Ranking paths for NAICS 561611

Top Recipients Top Awards Top States Top PSC Virginia view Office of Personnel Management view Virginia + PSC R422 Office of Personnel Management + PSC R422 Office of Personnel Management top PSC Virginia top PSC Virginia + Office of Personnel Management top NAICS Virginia + Office of Personnel Management + PSC R422

NAICS page

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