Sector Description
The Sector as a Whole
The Professional, Scientific, and Technical Services sector comprises establishments that specialize in performing professional, scientific, and technical activities for others. These activities require a high degree of expertise and training. The establishments in this sector specialize according to expertise and provide these services to clients in a variety of industries and, in some cases, to households. Activities performed include: legal advice and representation; accounting, bookkeeping, and payroll services; architectural, engineering, and specialized design services; computer services; consulting services; research services; advertising services; photographic services; translation and interpretation services; veterinary services; and other professional, scientific, and technical services.
This sector excludes establishments primarily engaged in providing a range of day-to-day office administrative services, such as financial planning, billing and recordkeeping, personnel supply, and physical distribution and logistics. These establishments are classified in Sector 56, Administrative and Support and Waste Management and Remediation Services.
IBISWorld Industry Research Report
Professional, Scientific and Technical Services in the US (54)
Revenue 2025
$3212.1bn
Growth 2025
-0.49%
Key Trends
Increasing consumer spending and business investment drove revenue growth
Growing consumer spending and corporate profit will likely benefit some subsectors
Sector profit is expected to marginally decrease during the outlook period
Products and Services
NAICS Hierarchy 54 - Professional, Scientific, and Technical Services
NAICS Code 54 - Professional, Scientific, and Technical Services sits in the 2-digit Professional, Scientific, and Technical Services sector. NAICS codes can be 2- to 6-digits and the further along the hierarchy, the more detailed and specific the category will be. Learn more about the structure of NAICS codes
2 Digits: 54
Sector Title: Professional, Scientific, and Technical Services
3 Digits 4 Digits 5 Digits 6 Digits
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5411 Legal Services
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54111 Offices of Lawyers
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54112 Offices of Notaries
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54119 Other Legal Services
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5412 Accounting, Tax Preparation, Bookkeeping, and Payroll Services
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54121 Accounting, Tax Preparation, Bookkeeping, and Payroll Services
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5413 Architectural, Engineering, and Related Services
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54131 Architectural Services
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54132 Landscape Architectural Services
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54133 Engineering Services
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54134 Drafting Services
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54135 Building Inspection Services
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54136 Geophysical Surveying and Mapping Services
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54137 Surveying and Mapping (except Geophysical) Services
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54138 Testing Laboratories
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5414 Specialized Design Services
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54141 Interior Design Services
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54142 Industrial Design Services
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54143 Graphic Design Services
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54149 Other Specialized Design Services
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5415 Computer Systems Design and Related Services
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54151 Computer Systems Design and Related Services
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5416 Management, Scientific, and Technical Consulting Services
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54161 Management Consulting Services
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54162 Environmental Consulting Services
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54169 Other Scientific and Technical Consulting Services
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5417 Scientific Research and Development Services
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54171 Research and Development in the Physical, Engineering, and Life Sciences
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54172 Research and Development in the Social Sciences and Humanities
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5418 Advertising, Public Relations, and Related Services
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54181 Advertising Agencies
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54182 Public Relations Agencies
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54183 Media Buying Agencies
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54184 Media Representatives
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54185 Outdoor Advertising
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54186 Direct Mail Advertising
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54187 Advertising Material Distribution Services
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54189 Other Services Related to Advertising
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5419 Other Professional, Scientific, and Technical Services
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54191 Marketing Research and Public Opinion Polling
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54192 Photographic Services
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54193 Translation and Interpretation Services
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54194 Veterinary Services
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54199 All Other Professional, Scientific, and Technical Services
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NAICS Resources
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