NAICS Sector 54

Professional, Scientific, and Technical Services NAICS Codes

49 NAICS codes in this sector (541110 to 541990)

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All Professional, Scientific, and Technical Services NAICS Codes

NAICS Code Title SBA Size Standard
541110 Offices of Lawyers $15.5M avg. receipts
541120 Offices of Notaries Contact SBA
541191 Title Abstract and Settlement Offices $19.5M avg. receipts
541199 All Other Legal Services $20.5M avg. receipts
541211 Offices of Certified Public Accountants $26.5M avg. receipts
541213 Tax Preparation Services $25M avg. receipts
541214 Payroll Services $39M avg. receipts
541219 Other Accounting Services $25M avg. receipts
541310 Architectural Services $12.5M avg. receipts
541320 Landscape Architectural Services $9M avg. receipts
541330 Engineering Services $25.5M avg. receipts
541340 Drafting Services $9M avg. receipts
541350 Building Inspection Services $11.5M avg. receipts
541360 Geophysical Surveying and Mapping Services $28.5M avg. receipts
541370 Surveying and Mapping (except Geophysical) Services $19M avg. receipts
541380 Testing Laboratories and Services $19M avg. receipts
541410 Interior Design Services $9M avg. receipts
541420 Industrial Design Services $17M avg. receipts
541430 Graphic Design Services $9M avg. receipts
541490 Other Specialized Design Services $13.5M avg. receipts
541511 Custom Computer Programming Services $34M avg. receipts
541512 Computer Systems Design Services $34M avg. receipts
541513 Computer Facilities Management Services $37M avg. receipts
541519 Other Computer Related Services $34M avg. receipts
541611 Administrative Management and General Management Consulting Services $24.5M avg. receipts
541612 Human Resources Consulting Services $29M avg. receipts
541613 Marketing Consulting Services $19M avg. receipts
541614 Process, Physical Distribution, and Logistics Consulting Services $20M avg. receipts
541618 Other Management Consulting Services $19M avg. receipts
541620 Environmental Consulting Services $19M avg. receipts
541690 Other Scientific and Technical Consulting Services $19M avg. receipts
541713 Research and Development in Nanotechnology 1,000 employees
541714 Research and Development in Biotechnology (except Nanobiotechnology) 1,000 employees
541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 1,000 employees
541720 Research and Development in the Social Sciences and Humanities $28M avg. receipts
541810 Advertising Agencies $25.5M avg. receipts
541820 Public Relations Agencies $19M avg. receipts
541830 Media Buying Agencies $32.5M avg. receipts
541840 Media Representatives $21M avg. receipts
541850 Indoor and Outdoor Display Advertising $34.5M avg. receipts
541860 Direct Mail Advertising $22M avg. receipts
541870 Advertising Material Distribution Services $28.5M avg. receipts
541890 Other Services Related to Advertising $19M avg. receipts
541910 Marketing Research and Public Opinion Polling $22.5M avg. receipts
541921 Photography Studios, Portrait $16M avg. receipts
541922 Commercial Photography $9M avg. receipts
541930 Translation and Interpretation Services $22.5M avg. receipts
541940 Veterinary Services $10M avg. receipts
541990 All Other Professional, Scientific, and Technical Services $19.5M avg. receipts

About Professional, Scientific, and Technical Services Federal Contracting

The Professional, Scientific, and Technical Services sector (NAICS Sector 54) encompasses 49 individual NAICS codes covering a wide range of business activities. Federal agencies contract extensively within this sector, creating opportunities for small businesses that hold the correct NAICS codes and meet the associated SBA small business size standards.

When registering in SAM.gov, selecting the appropriate NAICS codes from the Professional, Scientific, and Technical Services sector is essential for appearing in contracting officer searches and qualifying for set-aside programs. Each code within this sector has its own SBA size standard — either revenue-based or employee-based — that determines whether your business qualifies as "small" for contracts solicited under that specific code.

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11 Agriculture, Forestry, Fishing and Hunting (64) 21 Mining, Quarrying, and Oil and Gas Extraction (21) 22 Utilities (14) 23 Construction (31) 31 Manufacturing (346) 42 Wholesale Trade (69) 44 Retail Trade (57) 48 Transportation and Warehousing (57) 51 Information (29) 52 Finance and Insurance (35) 53 Real Estate and Rental and Leasing (24) 55 Management of Companies and Enterprises (3) 56 Administrative and Support and Waste Management and Remediation Services (44) 61 Educational Services (17) 62 Health Care and Social Assistance (39) 71 Arts, Entertainment, and Recreation (25) 72 Accommodation and Food Services (15) 81 Other Services (except Public Administration) (44) 92 Public Administration (29)