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NAICS codes by domain

Management & Advisory (M&A)

Domain NAICS code and title Size standard
M&A 541611 Administrative Management and General Management Consulting Services $24.5 Million
M&A 541612 Human Resources Consulting Services $29.0 Million
M&A 541613 Marketing Consulting Services $19.0 Million
M&A 541614 Process, Physical Distribution, and Logistics Consulting Services $20.0 Million
M&A 541618 Other Management Consulting Services $19.0 Million
M&A 541620 Environmental Consulting Services $19.0 Million
M&A 541990 All Other Professional, Scientific and Technical Services $19.5 Million

Technical & Engineering (T&E)

Domain NAICS code and title Size standard
T&E 336611 Ship Building and Repairing 1,300 employees
T&E 488190 Other Support Activities for Air Transportation $40.0 Million
T&E 488999 All Other Support Activities for Transportation $25.0 Million
T&E 541310 Architectural Services $12.5 Million
T&E 541330 Engineering Services $25.5 Million
T&E 541330 (Exception 1) Military and Aerospace Equipment and Military Weapons $47.0 Million
T&E 541330 (Exception 2) Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992 $47.0 Million
T&E 541330 (Exception 3) Marine Engineering and Naval Architecture $47.0 Million
T&E 541350 Building Inspection Services $11.5 Million
T&E 541360 Geophysical Surveying and Mapping Services $28.5 Million
T&E 541370 Surveying and Mapping (except Geophysical) Services $19.0 Million
T&E 541380 Testing Laboratories $19.0 Million
T&E 541611 Administrative Management and General Management Consulting Services $24.5 Million
T&E 541690 Other Scientific and Technical Consulting Services $19.0 Million
T&E 541990 All Other Professional, Scientific and Technical Services $19.5 Million
T&E 611512 Flight Training $34.0 Million

Research & Development (R&D)

Domain NAICS code and title Size standard
R&D 541330 Engineering Services $25.5 Million
R&D 541330 (Exception 1) Military and Aerospace Equipment and Military Weapons $47.0 Million
R&D 541330 (Exception 2) Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992 $47.0 Million
R&D 541330 (Exception 3) Marine Engineering and Naval Architecture $47.0 Million
R&D 541380 Testing Laboratories $19.0 Million
R&D 541611 Administrative Management and General Management Consulting Services $24.5 Million
R&D 541690 Other Scientific and Technical Consulting Services $19.0 Million
R&D 541713 Research and Technology in Nanotechnology 1,000 employees
R&D 541714 Research and Technology in Biotechnology (except Nanobiotechnology) 1,000 employees
R&D 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 1,000 employees
R&D 541715 (Exception 1) Aircraft, Aircraft Engine and Engine Parts 1,500 employees
R&D 541715 (Exception 2) Other Aircraft Parts and Auxiliary Equipment 1,250 employees
R&D 541715 (Exception 3) Guided Missiles and Space Vehicles, Their Propulsion Units and Propulsion Parts 1,300 employees
R&D 541720 Research and Development in the Social Sciences and Humanities $28.0 Million
R&D 541990 All Other Professional, Scientific and Technical Services $19.5 Million
R&D 621511 Medical Laboratories $41.5 Million

Intelligence Services (INTEL)

Domain NAICS code and title Size standard
INTEL 541330 Engineering Services $25.5 Million
INTEL 541330 (Exception 1) Military and Aerospace Equipment and Military Weapons $47.0 Million
INTEL 541330 (Exception 2) Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992 $47.0 Million
INTEL 541330 (Exception 3) Marine Engineering and Naval Architecture $47.0 Million
INTEL 541611 Administrative Management and General Management Consulting Services $24.5 Million
INTEL 541614 Process, Physical Distribution and Logistics Consulting Services $20.0 Million
INTEL 541618 Other Management Consulting Services $19.0 Million
INTEL 541690 Other Scientific and Technical Consulting Services $19.0 Million
INTEL 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 1,000 employees
INTEL 541715 (Exception 1) Aircraft, Aircraft Engine and Engine Parts 1,500 employees
INTEL 541715 (Exception 2) Other Aircraft Parts and Auxiliary Equipment 1,250 employees
INTEL 541715 (Exception 3) Guided Missiles and Space Vehicles, Their Propulsion Units and Propulsion Parts 1,300 employees
INTEL 541720 Research and Development in the Social Sciences and Humanities $28.0 Million
INTEL 541990 All Other Professional, Scientific and Technical Services $19.5 Million
INTEL 561499 All Other Business Support Services $21.5 Million
INTEL 561611 Investigation Services $25.0 Million

Environmental (ENV)

Domain NAICS code and title Size standard
ENV 541330 Engineering Services $25.5 Million
ENV 541360 Geophysical Surveying and Mapping Services $28.5 Million
ENV 541380 Testing Laboratories $19.0 Million
ENV 541620 Environmental Consulting Services $19.0 Million
ENV 541690 Other Scientific and Technical Consulting Services $19.0 Million
ENV 541990 All Other Professional, Scientific and Technical Services $19.5 Million
ENV 561210 Facilities Support Services $47.0 Million
ENV 562112 Hazardous Waste Collection $47.0 Million
ENV 562211 Hazardous Waste Treatment and Disposal $47.0 Million
ENV 562910 Remediation Services $25.0 Million
ENV 562910 (Exception) Environmental Remediation Services 1,000 employees

Facilities (FAC)

Domain NAICS code and title Size standard
FAC 238160 Roofing Contractors $19.0 Million
FAC 238210 Electrical Contractors and Other Wiring Installation Contractors $19.0 Million
FAC 238220 Plumbing, Heating and Air Conditioning Contractors $19.0 Million
FAC 238290 Other Building Equipment Contractors $22.0 Million
FAC 238320 Painting and Wall Covering Contractors $19.0 Million
FAC 238990 All Other Specialty Trade Contractors $19.0 Million
FAC 485999 All Other Transit and Ground Passenger transportation $19.0 Million
FAC 488190 Other Support Activities for Air Transportation $40.0 Million
FAC 488490 Other Support Activities for Road Transportation $18.0 Million
FAC 531311 Residential Property Managers $12.5 Million
FAC 531312 Nonresidential Property Managers $19.5 Million
FAC 541320 Landscape Architectural Services $9.0 Million
FAC 541330 Engineering Services $25.5 Million
FAC 541350 Building Inspection Services $11.5 Million
FAC 541611 Administrative Management and General Management Consulting Services $24.5 Million
FAC 541614 Process, Physical Distribution and Logistics Consulting Services $20.0 Million
FAC 541690 Other Scientific and Technical Consulting Services $19.0 Million
FAC 541990 All Other Professional, Scientific and Technical Services $19.5 Million
FAC 561210 Facilities Support Services $47.0 Million
FAC 561621 Security Systems Services (except Locksmiths) $25.0 Million
FAC 561710 Exterminating and Pest Control Services $17.5 Million
FAC 561720 Janitorial Services $22.0 Million
FAC 561730 Landscaping Services $9.5 Million
FAC 561730 Landscaping Services $9.5 Million
FAC 561990 All Other Support Services $16.5 Million
FAC 562111 Solid Waste Collection $47.0 Million
FAC 562112 Hazardous Waste Collection $47.0 Million
FAC 562211 Hazardous Waste Treatment and Disposal $47.0 Million
FAC 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance $12.5 Million

Logistics (LOG)

Domain NAICS code and title Size standard
LOG 336611 Ship Building and Repairing 1,300 employees
LOG 481211 Nonscheduled Chartered Passenger Air Transportation 1,500 employees
LOG 485991 Special Needs Transportation $19.0 Million
LOG 485999 All Other Transit and Ground Passenger Transportation $19.0 Million
LOG 488111 Air Traffic Control $40.0 Million
LOG 488190 Other Support Activities for Air Transportation $40.0 Million
LOG 488999 All Other Support Activities for Transportation $25.0 Million
LOG 492110 Couriers and Express Delivery Services 1,500 employees
LOG 493110 General Warehousing and Storage $34.0 Million
LOG 493120 Refrigerated Warehousing and Storage $36.5 Million
LOG 493190 Other Warehousing and Storage $36.5 Million
LOG 541330 Engineering Services $25.5 Million
LOG 541614 Process, Physical Distribution and Logistics Consulting Services $20.0 Million
LOG 541690 Other Scientific and Technical Consulting Services $19.0 Million
LOG 541990 All Other Professional, Scientific and Technical Services $19.5 Million
LOG 561210 Facilities Support Services $47.0 Million
LOG 811114 Specialized Automotive Repair $9.0 Million
LOG 811121 Automotive Body, Paint and Interior Repair and Maintenance $9.0 Million
LOG 811198 All Other Automotive Repair and Maintenance $10.0 Million

Enterprise Solutions (UR Only) (ENT)

Domain NAICS code and title Size standard
ENT 336611 Ship Building and Repairing 1,300 employees
ENT 541330 Engineering Services $25.5 Million
ENT 541330 (Exception 2) Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992 $47.0 Million
ENT 541330 (Exception 3) Marine Engineering and Naval Architecture $47.0 Million
ENT 541611 Administrative Management and General Management Consulting Services $24.5 Million
ENT 541614 Process, Physical Distribution, and Logistics Consulting Services $20.0 Million
ENT 541620 Environmental Consulting Services $19.0 Million
ENT 541690 Other Scientific and Technical Consulting Services $19.0 Million
ENT 41715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 1,000 employees
ENT 541715 (Exception 1) Aircraft, Aircraft Engine and Engine Parts 1,500 employees
ENT 541715 (Exception 2) Other Aircraft Parts and Auxiliary Equipment 1,250 employees
ENT 541715 (Exception 3) Guided Missiles and Space Vehicles, Their Propulsion Units and Propulsion Parts 1,300 employees
ENT 541990 All Other Professional, Scientific and Technical Services $19.5 Million
ENT 561210 Facilities Support Services $47.0 Million
ENT 562910 Remediation Services $25.0 Million
ENT 562910 (Exception) Environmental Remediation Services 1,000 employees
Last updated: February 27, 2024