Department of Defense NAICS 541611 and PSC R429 contractors

Administrative Management and General Management Consulting Services. SUPPORT- PROFESSIONAL: EMERGENCY RESPONSE/DISASTER PLANNING/PREPAREDNESS SUPPORT. Cross-code overlap under Department of Defense.

Department of Defense · NAICS 541611 · PSC R429

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$762,671,321

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541611 and PSC R429

International Sos Government Services LLC

San Antonio, TX

San Antonio, TX | 61 awards | Top agency Department of Defense | NAICS 524114

$5,478,636

Tetra Tech, Inc.

Pasadena, CA

Pasadena, CA | 260 awards | Top agency Department of Defense | NAICS 541330

$434,126,694

Cherokee Nation System Solutions LLC

Tulsa, OK

Tulsa, OK | 511 awards | Top agency Department of State | NAICS 561210

$59,642,106

Iem International, Inc.

Raleigh, NC

Raleigh, NC | 39 awards | Top agency Department of Homeland Security | NAICS 541611

$258,592,021

Decisionpoint - Gap Solutions Joint Venture, LLC

Gaithersburg, MD

Gaithersburg, MD | 2 awards | Top agency Department of Health and Human Services | NAICS 541611

$4,831,864

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