Department of Homeland Security NAICS 541712 and PSC R499 contractors

Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology). SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541712 · PSC R499

Last updated: April 9, 2026

Visible recipients

Mapped obligations

$74,022,858,352

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541712 and PSC R499

Mantech Srs Technologies, Inc.

Herndon, VA

Herndon, VA | 76 awards | Top agency Department of Defense | NAICS 541330

$468,063,553

Ensco INC

Vienna, VA

Vienna, VA | 124 awards | Top agency Department of Defense | NAICS 541712

$501,749,750

Analytic Services Inc.

Arlington, VA

Arlington, VA | 91 awards | Top agency Department of Defense | NAICS 541611

$880,647,313

Prescient Edge Corporation

Mc Lean, VA

Mc Lean, VA | 78 awards | Top agency General Services Administration | NAICS 541715

$163,785,230

Dsfederal, INC

Rockville, MD

Rockville, MD | 66 awards | Top agency Department of Health and Human Services | NAICS 541511

$93,876,646

Bevilacqua Research Corporation

Huntsville, AL

Huntsville, AL | 41 awards | Top agency Department of Defense | NAICS 541330

$15,792,145

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