NAICS & Business Codes

Federal classification codes for government contracting and procurement.

Federal Classification

What Are NAICS Codes?

The North American Industry Classification System (NAICS) is the standard used by federal statistical agencies to classify business establishments for collecting, analyzing, and publishing statistical data related to the U.S. business economy.

For government contracting, NAICS codes help agencies identify qualified vendors and set small business size standards. They are essential for procurement officers searching for contractors with specific capabilities.

MH Chew Associates operates under multiple NAICS codes, reflecting our diverse expertise in scientific consulting, environmental services, and engineering.

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NAICS Classifications

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View our NAICS codes

Our Classifications

NAICS Codes

Our primary federal industry classifications for government contracting and procurement.

NAICS Code

Engineering Services

Related Services

  • Shielding Design
  • Facility Engineering
  • Transport Modeling
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NAICS Code

Other Scientific & Technical Consulting

Related Services

  • Health Physics Consulting
  • Radiation Safety Programs
  • Technical Advisory Services
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NAICS Code

All Other Professional, Scientific, and Technical Services

Related Services

  • Training Programs
  • Documentation Services
  • Regulatory Support
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Business Identifiers

Additional Codes

Federal registration and identification codes for procurement systems.

Need Our Codes for Procurement?

Contact us for assistance with government contracting, vendor registration, or to discuss your project requirements.