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NAICS 541990 and PSC B510 contractors in Ohio
All Other Professional, Scientific, and Technical Services. SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS. Use this deeper state cross-code page to see which visible contractors sit in the overlap between these two lanes inside Ohio.
Ohio · NAICS 541990 · PSC B510
Last updated: April 7, 2026
Visible recipients
1
Mapped obligations
$28,461,327
Buyer overlap
4
Top recipients
