NAICS + PSC page

NAICS 561621 and PSC AD25 contractors

Security Systems Services (except Locksmiths). R&D- DEFENSE OTHER: SERVICES (OPERATIONAL SYSTEMS DEVELOPMENT). Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 561621 + PSC AD25

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$121,091,279

State overlap

Top recipients

Visible recipients in the NAICS 561621 and PSC AD25 overlap

The Whitestone Group, Inc.

Reynoldsburg, OH

The Whitestone Group, Inc. is a federal category business profile based in Reynoldsburg, OH. The current public data layer shows $44,135,018 in visible federal obligations across 67 awards or transactions. Department of Transportation appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$121,091,279