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	2,120,896
5411	Legal Services	334,686
541110	Offices of Lawyers	312,563
541120	Offices of Notaries	5,831
541191	Title Abstract and Settlement Offices	11,032
541199	All Other Legal Services	5,260
5412	Accounting, Tax Preparation, Bookkeeping, and Payroll Services	176,394
541211	Offices of Certified Public Accountants	61,718
541213	Tax Preparation Services	59,911
541214	Payroll Services	2,729
541219	Other Accounting Services	52,036
5413	Architectural, Engineering, and Related Services	238,011
541310	Architectural Services	37,624
541320	Landscape Architectural Services	79,114
541330	Engineering Services	89,696
541340	Drafting Services	1,625
541350	Building Inspection Services	7,260
541360	Geophysical Surveying and Mapping Services	0
541370	Surveying and Mapping (except Geophysical) Services	12,334
541380	Testing Laboratories	10,358
5414	Specialized Design Services	72,510
541410	Interior Design Services	33,972
541420	Industrial Design Services	1,764
541430	Graphic Design Services	35,025
541490	Other Specialized Design Services	1,749
5415	Computer Systems Design and Related Services	190,494
541511	Custom Computer Programming Services	101,100
541512	Computer Systems Design Services	83,501
541513	Computer Facilities Management Services	1,082
541519	Other Computer Related Services	4,811
5416	Management, Scientific, and Technical Consulting Services	627,155
541611	Administrative Management and General Management Consulting Services	179,830
541612	Human Resources Consulting Services	13,473
541613	Marketing Consulting Services	54,679
541614	Process, Physical Distribution, and Logistics Consulting Services	2,947
541618	Other Management Consulting Services	314,502
541620	Environmental Consulting Services	21,757
541690	Other Scientific and Technical Consulting Services	39,967
5417	Scientific Research and Development Services	42,465
541713	Research and Development in Nanotechnology	0
541714	Research and Development in Biotechnology (except Nanobiotechnology)	4,129
541715	Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	23,357
541720	Research and Development in the Social Sciences and Humanities	14,979
5418	Advertising, Public Relations, and Related Services	62,173
541810	Advertising Agencies	22,496
541820	Public Relations Agencies	16,052
541830	Media Buying Agencies	758
541840	Media Representatives	3,586
541850	Outdoor Advertising	2,496
541860	Direct Mail Advertising	4,829
541870	Advertising Material Distribution Services	1,032
541890	Other Services Related to Advertising	10,924
5419	Other Professional, Scientific, and Technical Services	377,008
541910	Marketing Research and Public Opinion Polling	12,815
541921	Photography Studios, Portrait	86,662
541922	Commercial Photography	15,872
541930	Translation and Interpretation Services	5,956
541940	Veterinary Services	44,226
541990	All Other Professional, Scientific, and Technical Services	211,477

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