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NAICS 541620 and PSC R799 contractors in Tennessee

Environmental Consulting Services. SUPPORT- MANAGEMENT: OTHER. Use this deeper state cross-code page to see which visible contractors sit in the overlap between these two lanes inside Tennessee.

Tennessee · NAICS 541620 · PSC R799

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$475,969,058

Buyer overlap

Top recipients

Visible recipients in the Tennessee overlap of NAICS 541620 and PSC R799

Navarro Research And Engineering, Inc.

Oak Ridge, TN

Navarro Research And Engineering, Inc. is a federal category business profile based in Oak Ridge, TN. The current public data layer shows $65,564,010 in visible federal obligations across 102 awards or transactions. Department of Energy appears as the strongest visible awarding agency. Top industry concentration is in NAICS 562910 (Remediation Services). The profile also shows meaningful product and service activity in PSC R799.

$475,969,058