Department of Homeland Security PSC D399 contractors

IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Contractors in this PSC lane under Department of Homeland Security.

Agency: Department of Homeland Security

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$65,800,440,470

Visible recipients tied to Department of Homeland Security and PSC D399

Govcio, LLC

Fairfax, VA

Fairfax, VA | 94 awards | Top agency Department of Veterans Affairs | NAICS 541512

$411,964,334

Enterprise Resource Planned Systems International, LLC

Laurel, MD

Laurel, MD | 5 awards | Top agency Department of Homeland Security | NAICS 541512

$58,881,346

Softrams LLC

Arlington, VA

Arlington, VA | 60 awards | Top agency Department of Health and Human Services | NAICS 541511

$92,246,567

Mantech Information Systems & Technology Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Justice | NAICS 541611

$62,872,801

Peraton Technology Services Inc.

Chantilly, VA

Chantilly, VA | 259 awards | Top agency General Services Administration | NAICS 541330

$135,416,081

Guidehouse Digital LLC

Mc Lean, VA

Mc Lean, VA | 389 awards | Top agency Department of Homeland Security | NAICS 541512

$319,643,889

Rei Systems, Inc.

Chantilly, VA

Chantilly, VA | 168 awards | Top agency Department of Health and Human Services | NAICS 541519

$97,464,205

Aoc Connect, LLC

Ashburn, VA

Ashburn, VA | 241 awards | Top agency Department of Defense | NAICS 517110

$13,665,714

Agile Defense, LLC

Mclean, VA

Mclean, VA | 496 awards | Top agency Department of Defense | NAICS 541512

$134,496,525

General Dynamics One Source LLC

Falls Church, VA

Falls Church, VA | 158 awards | Top agency Department of Defense | NAICS 541512

$690,973,785

Page 3 of 9Prev 1 2 3 4...9 Next

Agency profile

Loading buyer-level contractor and category paths