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Investigation and Personal Background Check Services government contracts
14 open Investigation and Personal Background Check Services notices under NAICS 561611 right now. Federal buyers posted 23 since Aug 7, 2026.
Latest Investigation and Personal Background Check Services notices
Open notices first, soonest deadline first. Recently closed ones follow, so you can see what gets bought. Every row links to the official record.
Agencies buying Investigation and Personal Background Check Services
Who posted notices under NAICS 561611 since Aug 7, 2026, busiest first.
| Agency | Notices | Open now |
|---|---|---|
| Department of the Navy Department of Defense | 4 | 4 |
| U.S. Customs and Border Protection Department of Homeland Security | 4 | 4 |
| Federal Bureau of Prisons Department of Justice | 3 | 0 |
| U.S. Coast Guard Department of Homeland Security | 2 | 0 |
| Department of Veterans Affairs | 1 | 0 |
| Justice Offices, Boards and Divisions Department of Justice | 1 | 1 |
| U.S. Postal Service | 1 | 1 |
| Bureau of Alcohol, Tobacco, Firearms and Explosives Department of Justice | 1 | 1 |
| Defense Counterintelligence and Security Agency Department of Defense | 1 | 1 |
| Defense Health Agency Department of Defense | 1 | 1 |
| Interior Departmental Offices Department of the Interior | 1 | 1 |
| GSA Federal Acquisition Service General Services Administration | 1 | 0 |
| U.S. Citizenship and Immigration Services Department of Homeland Security | 1 | 0 |
Every federal buyer is listed in the agency directory.
Who wins Investigation and Personal Background Check Services contracts
Contractors ranked by value obligated on NAICS 561611 awards.
| Contractor | Awards | Obligated |
|---|---|---|
| Peraton Risk Decision Inc. UEI P78LRLNYPUF4 | 16 | $1.7B |
| CACI, Inc. - Federal UEI N3PBJAVNKF61 | 12 | $957M |
| CACI Premier Technology, LLC UEI X9T5HHV5F5G2 | 1 | $577M |
| Securitas Critical Infrastructure Services, Inc. UEI WQAKKCKH9LM8 | 1 | $291M |
| Asrc Federal Professional Services, LLC UEI H2EKDUKQQLD3 | 1 | $281M |
| Protection Strategies Inc UEI JWA9MZBLNE44 | 14 | $162M |
| Madison Associates Inc UEI PEC7L2W5JNY7 | 10 | $131M |
| Omniplex World Services Corporation UEI K87GBMDQNEX8 | 16 | $98.7M |
| Professional Risk Management, Inc. UEI E25MCR8CQBT7 | 3 | $95.5M |
| Equifax Workforce Solutions LLC UEI HYKURWCMHQJ5 | 9 | $94.6M |
From federal award records of $1M or more since October 2023. More in the contractor directory.
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Questions people ask
What is NAICS 561611?
NAICS 561611 is the federal industry code for Investigation and Personal Background Check Services. Agencies attach it to solicitations for this work, and it decides which small business size standard applies.
Are these real government contracts?
Yes. Every row comes from the public feed of the official source, most often SAM.gov, and links straight to the official notice. Confirm deadlines and amendments there before you respond.
Will this page list every open Investigation and Personal Background Check Services bid?
No single search can. Agencies sometimes file this work under a neighboring code or describe it differently. Use this page to find leads fast, then check scope, eligibility, and attachments in the official notice.
How often is this page updated?
The list refreshes through the day from the same opportunity database that powers Captivaq. It currently tracks 14 open notices.
How do I hear about new ones without checking back?
Captivaq watches the sources against your company profile and alerts you when a fitting notice posts, then scores the fit and drafts the response. That is the product behind this page.
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More codes like this one are in administrative, support, and waste management services. Bidding in Canada? Tenders there classify work by UNSPSC rather than NAICS; start from Canadian government tenders.
Captivaq is an independent service from Logesta Labs LLC and is not affiliated with or endorsed by the U.S. government or SAM.gov. The notice on the official source portal is the record that governs; confirm deadlines and amendments there.