Six Digit NAICS Codes: 54 Professional, Scientific, and Technical Services

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Codes	Titles	Total Marketable US Businesses
54	Professional, Scientific, and Technical Services	2,229,824
5411	Legal Services	352,591
541110	Offices of Lawyers	329,329
541120	Offices of Notaries	6,186
541191	Title Abstract and Settlement Offices	11,654
541199	All Other Legal Services	5,422
5412	Accounting, Tax Preparation, Bookkeeping, and Payroll Services	186,003
541211	Offices of Certified Public Accountants	70,227
541213	Tax Preparation Services	63,205
541214	Payroll Services	3,008
541219	Other Accounting Services	49,563
5413	Architectural, Engineering, and Related Services	257,109
541310	Architectural Services	39,518
541320	Landscape Architectural Services	84,092
541330	Engineering Services	97,657
541340	Drafting Services	1,686
541350	Building Inspection Services	7,850
541360	Geophysical Surveying and Mapping Services	0
541370	Surveying and Mapping (except Geophysical) Services	13,157
541380	Testing Laboratories	13,149
5414	Specialized Design Services	75,401
541410	Interior Design Services	35,656
541420	Industrial Design Services	1,856
541430	Graphic Design Services	36,061
541490	Other Specialized Design Services	1,828
5415	Computer Systems Design and Related Services	204,503
541511	Custom Computer Programming Services	109,028
541512	Computer Systems Design Services	89,199
541513	Computer Facilities Management Services	1,168
541519	Other Computer Related Services	5,108
5416	Management, Scientific, and Technical Consulting Services	658,292
541611	Administrative Management and General Management Consulting Services	188,300
541612	Human Resources Consulting Services	14,431
541613	Marketing Consulting Services	58,389
541614	Process, Physical Distribution, and Logistics Consulting Services	3,189
541618	Other Management Consulting Services	326,353
541620	Environmental Consulting Services	23,828
541690	Other Scientific and Technical Consulting Services	43,802
5417	Scientific Research and Development Services	44,469
541713	Research and Development in Nanotechnology	0
541714	Research and Development in Biotechnology (except Nanobiotechnology)	4,535
541715	Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	24,238
541720	Research and Development in the Social Sciences and Humanities	15,696
5418	Advertising, Public Relations, and Related Services	64,880
541810	Advertising Agencies	23,927
541820	Public Relations Agencies	16,526
541830	Media Buying Agencies	789
541840	Media Representatives	3,668
541850	Outdoor Advertising	2,589
541860	Direct Mail Advertising	4,966
541870	Advertising Material Distribution Services	1,063
541890	Other Services Related to Advertising	11,352
5419	Other Professional, Scientific, and Technical Services	386,576
541910	Marketing Research and Public Opinion Polling	13,409
541921	Photography Studios, Portrait	88,112
541922	Commercial Photography	16,171
541930	Translation and Interpretation Services	6,272
541940	Veterinary Services	46,901
541990	All Other Professional, Scientific, and Technical Services	215,711

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