General Services Administration NAICS 561421 and PSC B540 contractors

Telephone Answering Services. SPECIAL STUDIES/ANALYSIS- BUILDING TECHNOLOGY. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under General Services Administration.

General Services Administration · NAICS 561421 · PSC B540

Last updated: April 6, 2026

Visible recipients

Mapped obligations

$9,656,026

State overlap

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 561421 and PSC B540

Mckinstry Essention, LLC

Seattle, WA

Mckinstry Essention, LLC is a federal category business profile based in Seattle, WA. The current public data layer shows $1,180,873 in visible federal obligations across 6 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC B540.

$9,656,026