Department of Homeland Security NAICS 541512 contractors

Computer Systems Design Services. Contractors in this NAICS lane under Department of Homeland Security.

Agency: Department of Homeland Security

Last updated: April 17, 2026

Visible recipients

142

Mapped obligations

$149,771,103,180

Visible recipients tied to Department of Homeland Security and NAICS 541512

Peraton Healthcare Solutions LLC

Herndon, VA

Herndon, VA | 5 awards | Top agency Department of Veterans Affairs | NAICS 541512

$187,044,170

Mantech Mission, Cyber And Technology Solutions, Inc.

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541690

$61,414,964

Amentum National Security Programs, INC

Chantilly, VA

Chantilly, VA | 5 awards | Top agency Department of Defense | NAICS 541990

$27,156,587

M. C. Dean, Inc.

Tysons, VA

Tysons, VA | 1,299 awards | Top agency Department of Defense | NAICS 541330

$372,472,018

Caci Nss, LLC

Reston, VA

Reston, VA | 109 awards | Top agency Department of Defense | NAICS 541519

$2,140,858,628

Techflow, Inc.

San Diego, CA

San Diego, CA | 35 awards | Top agency Department of Homeland Security | NAICS 811219

$112,478,743

Network Security Systems Plus, INC

Mc Lean, VA

Mc Lean, VA | 6 awards | Top agency Department of Defense | NAICS 541512

$111,624,241

Credence Management Solutions Limited Liability Company

Mclean, VA

Mclean, VA | 222 awards | Top agency Department of Defense | NAICS 541330

$140,554,175

Govcio, LLC

Fairfax, VA

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

$1,370,134,265

Johnson Controls Building Automation Systems, LLC

Huntsville, AL

Huntsville, AL | 154 awards | Top agency Department of Defense | NAICS 541512

$1,964,372,394

Page 3 of 15Prev 1 2 3 4...15 Next

Agency profile

Loading buyer-level contractor and category paths