NAICS + PSC page

NAICS 541712 and PSC R499 contractors

Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology). SUPPORT- PROFESSIONAL: OTHER. Cross-code contractor overlap.

NAICS 541712 + PSC R499

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$126,047,948,985

State overlap

Top recipients

Visible recipients in the NAICS 541712 and PSC R499 overlap

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

The Emmes Company, LLC

Rockville, MD

Rockville, MD | 69 awards | Top agency Department of Health and Human Services | NAICS 541712

$474,594,224

Quinault Indian Nation

Taholah, WA

Taholah, WA | 122 awards | Top agency Department of the Interior | NAICS 221320

$12,500

Astrion Group, LLC

Huntsville, AL

Huntsville, AL | 45 awards | Top agency Department of Defense | NAICS 541712

$1,213,677,156

Sentar, Inc.

Huntsville, AL

Huntsville, AL | 67 awards | Top agency Department of Defense | NAICS 541330

$58,498,731

Peopletec, Inc.

Huntsville, AL

Huntsville, AL | 68 awards | Top agency Department of Defense | NAICS 541330

$50,947,045

Social & Scientific Systems, Inc.

Silver Spring, MD

Silver Spring, MD | 84 awards | Top agency Department of Health and Human Services | NAICS 541712

$270,840,073

Peerless Technologies Corporation

Fairborn, OH

Fairborn, OH | 65 awards | Top agency Department of Defense | NAICS 541330

$233,326,035

Page 3 of 5Prev 1 2 3 4 5 Next

NAICS page

Loading industry-code contractor and award paths