General Services Administration NAICS 561621 and PSC N063 contractors

Security Systems Services (except Locksmiths). INSTALLATION OF EQUIPMENT- ALARM, SIGNAL, AND SECURITY DETECTION SYSTEMS. Cross-code overlap under General Services Administration.

General Services Administration · NAICS 561621 · PSC N063

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$1,185,540,029

State overlap

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 561621 and PSC N063

M. C. Dean, Inc.

Tysons, VA

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

$1,173,881,508

Muscogee Nation Business Enterprise

Okmulgee, OK

Okmulgee, OK | 20 awards | Top agency Department of Defense | NAICS 541519

$9,920,306

Agency Management Concepts INC

Oakton, VA

Oakton, VA | 5 awards | Top agency Department of Defense | NAICS 561621

$1,738,215

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