

541 Professional, Scientific, and Technical Services
| 1997 NAICS |
1997 NAICS U.S. Description | Codes | 1987 SIC |
1987 U.S. SIC Description | |
|---|---|---|---|---|---|
| 541 | Professional, Scientific, and Technical Services | ||||
| 5411 | Legal Services | ||||
| 54111 | Offices of Lawyers | E | 8111 | Legal Services | |
| 54112 | Offices of Notaries | L | Null Set for U.S. | ||
| 54119 | Other Legal Services | ||||
| 541191 | Title Abstract and Settlement Offices | u | E | 6541 | Title Abstract Offices |
| 541199 | All Other Legal Services | u | N | *7389 | Business Services, NEC (process services, patent agents, notaries public, paralegal services ) |
| 5412 | Accounting, Tax Preparation, Bookkeeping, and Payroll Services | ||||
| 54121 | Accounting, Tax Preparation, Bookkeeping, and Payroll Services | ||||
| 541211 | Offices of Certified Public Accountants | u | N | *8721 | Accounting, Auditing, and Bookkeeping Services (auditing accountants) |
| 541213 | Tax Preparation Services | c | E | 7291 | Tax Return Preparation Services |
| 541214 | Payroll Services | u | N | *7819 | Services Allied to Motion Picture Production (talent payment services) |
| *8721 | Accounting, Auditing, and Bookkeeping Services (payroll services) | ||||
| 541219 | Other Accounting Services | u | N | *8721 | Accounting, Auditing, and Bookkeeping Services (other accounting services) |
| 5413 | Architectural, Engineering, and Related Services | ||||
| 54131 | Architectural Services | E | 8712 | Architectural Services | |
| 54132 | Landscape Architectural Services | R | *0781 | Landscape Counseling and Planning (except horticultural consulting) | |
| *8748 | Business Consulting Services, NEC (urban planners and industrial development organizations) | ||||
| 54133 | Engineering Services | R | 8711 | Engineering Services | |
| *8748 | Business Consulting Services, NEC (traffic engineering consulting) | ||||
| 54134 | Drafting Services | N | *7389 | Business Services, NEC (drafting service) | |
| 54135 | Building Inspection Services | N | *7389 | Business Services, NEC (home and building inspection services) | |
| 54136 | Geophysical Surveying and Mapping Services | N | *8713 | Surveying Services (geophysical surveying ) | |
| *1081 | Metal Mining Services (geophysical surveying and mapping) | ||||
| *1382 | Oil and Gas Field Exploration Services (geophysical surveying and mapping) | ||||
| *1481 | Nonmetallic Minerals Services, Except Fuels (geophysical surveying and mapping) | ||||
| 54137 | Surveying and Mapping (except Geophysical) Services | N | *7389 | Business Services, NEC (map making services) | |
| *8713 | Surveying Services (except geophysical surveying) | ||||
| 54138 | Testing Laboratories | R | *8734 | Testing Laboratories (except veterinary testing laboratories) | |
| 5414 | Specialized Design Services | ||||
| 54141 | Interior Design Services | N | *7389 | Business Services, NEC (interior design) | |
| 54142 | Industrial Design Services | N | *7389 | Business Services, NEC (industrial design) | |
| 54143 | Graphic Design Services | R | 7336 | Commercial Art and Graphic Design | |
| *8099 | Health and Allied Services, NEC (medical artists) | ||||
| 54149 | Other Specialized Design Services | N | *7389 | Business Services, NEC (fashion and other design services) | |
| 5415 | Computer Systems Design and Related Services | ||||
| 54151 | Computer Systems Design and Related Services | ||||
| 541511 | Custom Computer Programming Services | u | E | 7371 | Computer Programming Services |
| 541512 | Computer Systems Design Services | u | N | 7373 | Computer Integrated Systems Design |
| *7379 | Computer Related Services, NEC (computer systems consultants) | ||||
| 541513 | Computer Facilities Management Services | u | E | 7376 | Computer Facilities Management Services |
| 541519 | Other Computer Related Services | u | R | *7379 | Computer Related Services, NEC (except computer systems consultants and disk and diskette conversion and recertification) |
| 5416 | Management, Scientific, and Technical Consulting Services | ||||
| 54161 | Management Consulting Services | ||||
| 541611 | Administrative Management and General Management Consulting Services | c | N | *8742 | Management Consulting Services (administrative management and general management consulting) |
| 541612 | Human Resources and Executive Search Consulting Services | c | N | *8742 | Management Consulting Services (human resources and personnel management consulting) |
| *7361 | Employment Agencies (executive placement services) | ||||
| *8999 | Services, NEC (actuarial consulting) | ||||
| 541613 | Marketing Consulting Services | u | N | *8742 | Management Consulting Services (marketing consulting) |
| 541614 | Process, Physical Distribution, and Logistics Consulting Services | u | N | *8742 | Management Consulting Services (manufacturing management, physical distribution, and site location consulting) |
| *4731 | Arrangement of Transportation of Freight and Cargo (freight rate-auditors and tariff consulting) | ||||
| 541618 | Other Management Consulting Services | u | N | *8748 | Business Consulting Services, NEC (except educational testing and consulting, economic consulting, safety and security, ag |
| 54162 | Environmental Consulting Services | N | *8999 | Services, NEC (environmental consultants) | |
| 54169 | Other Scientific and Technical Consulting Services | N | *0781 | Landscape Counseling and Planning (horticulture consulting) | |
| *8748 | Business Consulting Services, NEC (safety, security, agriculture, and economic, consultants) | ||||
| *8999 | Services, NEC (scientific and related consulting services) | ||||
| 5417 | Scientific Research and Development Services | ||||
| 54171 | Research and Development in the Physical, Engineering, and Life Sciences | N | *3721 | Aircraft (research and development) | |
| *3724 | Aircraft Engines and Engine Parts (research and development) | ||||
| *3728 | Aircraft Parts and Auxiliary Equipment, NEC (research and development) | ||||
| *3761 | Guided missiles and Space Vehicles (research and development) | ||||
| *3764 | Guided missile and Space Vehicle Propulsion Units and Propulsion Unit Parts (research and development) | ||||
| *3769 | Guided Missile Space Vehicle Parts and Auxiliary Equipment, NEC (research and development) | ||||
| 8731 | Commercial Physical and Biological Research | ||||
| *8733 | Noncommercial Research Organizations (physical, engineering and life sciences) | ||||
| 54172 | Research and Development in the Social Sciences and Humanities | N | *8732 | Commercial Economic, Sociological, and Educational Research (social sciences and humanities) | |
| *8733 | Noncommercial Research Organizations (social sciences and humanities) | ||||
| 5418 | Advertising and Related Services | ||||
| 54181 | Advertising Agencies | E | 7311 | Advertising Agencies | |
| 54182 | Public Relations Agencies | E | 8743 | Public Relations Services | |
| 54183 | Media Buying Agencies | N | *7319 | Advertising, NEC (media buying services) | |
| 54184 | Media Representatives | E | 7313 | Radio, Television, and Publishers' Advertising Representatives | |
| 54185 | Display Advertising | N | 7312 | Outdoor Advertising Services | |
| *7319 | Advertising, NEC (display advertising, except outdoor) | ||||
| 54186 | Direct Mail Advertising | R | *7331 | Direct Mail Advertising Services (except mailing list compilers) | |
| 54187 | Advertising Material Distribution Services | N | *7319 | Advertising, NEC (advertising materials distributor) | |
| *7389 | Business Services, NEC (distribution of telephone directories on a fee or contract basis) | ||||
| 54189 | Other Services Related to Advertising | N | *7319 | Advertising, NEC (except media buying, display advertising, except outdoor; and advertising material distributors) | |
| *5199 | Nondurable Goods, NEC (advertising specialities goods distributors) | ||||
| *7389 | Business Services, NEC (sign painting and lettering, showcard painting, mannequin decorating service and other advertising | ||||
| 5419 | Other Professional, Scientific, and Technical Services | ||||
| 54191 | Marketing Research and Public Opinion Polling | N | *8732 | Commercial Economic, Sociological, and Educational Research (market research and opinion research) | |
| 54192 | Photographic Services | ||||
| 541921 | Photography Studios, Portrait | u | E | 7221 | Photographic Studios, Portrait |
| 541922 | Commercial Photography | u | R | *7335 | Commercial Photography (except when combined with a variety of aircraft based services) |
| *8099 | Health and Allied Services, NEC (medical photography) | ||||
| 54193 | Translation and Interpretation Services | N | *7389 | Business Services, NEC (translation and interpretation services) | |
| 54194 | Veterinary Services | R | 0741 | Veterinary Services for Livestock | |
| 0742 | Veterinary Services for Animal Specialties | ||||
| *8734 | Testing Laboratories (veterinary testing laboratories) | ||||
| 54199 | All Other Professional, Scientific, and Technical Services | N | *7389 | Business Services (appraisers, except insurance and real estate, and miscellaneous professional, scientific, and technical |
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