NAICS + PSC page

NAICS 561421 and PSC B540 contractors

Telephone Answering Services. SPECIAL STUDIES/ANALYSIS- BUILDING TECHNOLOGY. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 561421 + PSC B540

Last updated: April 3, 2026

Visible recipients

Mapped obligations

$9,656,026

State overlap

Top recipients

Visible recipients in the NAICS 561421 and PSC B540 overlap

Mckinstry Essention, LLC

Seattle, WA

Mckinstry Essention, LLC is a federal category business profile based in Seattle, WA. The current public data layer shows $900,972 in visible federal obligations across 5 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