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	2,101,884
5411	Legal Services	331,364
541110	Offices of Lawyers	309,375
541120	Offices of Notaries	5,998
541191	Title Abstract and Settlement Offices	10,854
541199	All Other Legal Services	5,137
5412	Accounting, Tax Preparation, Bookkeeping, and Payroll Services	175,049
541211	Offices of Certified Public Accountants	65,867
541213	Tax Preparation Services	59,978
541214	Payroll Services	2,766
541219	Other Accounting Services	46,438
5413	Architectural, Engineering, and Related Services	241,770
541310	Architectural Services	37,195
541320	Landscape Architectural Services	80,233
541330	Engineering Services	90,445
541340	Drafting Services	1,607
541350	Building Inspection Services	7,289
541360	Geophysical Surveying and Mapping Services	0
541370	Surveying and Mapping (except Geophysical) Services	12,243
541380	Testing Laboratories	12,758
5414	Specialized Design Services	71,451
541410	Interior Design Services	33,775
541420	Industrial Design Services	1,723
541430	Graphic Design Services	34,253
541490	Other Specialized Design Services	1,700
5415	Computer Systems Design and Related Services	192,071
541511	Custom Computer Programming Services	102,164
541512	Computer Systems Design Services	84,174
541513	Computer Facilities Management Services	1,042
541519	Other Computer Related Services	4,691
5416	Management, Scientific, and Technical Consulting Services	619,883
541611	Administrative Management and General Management Consulting Services	176,414
541612	Human Resources Consulting Services	13,454
541613	Marketing Consulting Services	55,672
541614	Process, Physical Distribution, and Logistics Consulting Services	2,958
541618	Other Management Consulting Services	308,784
541620	Environmental Consulting Services	21,957
541690	Other Scientific and Technical Consulting Services	40,644
5417	Scientific Research and Development Services	40,985
541713	Research and Development in Nanotechnology	0
541714	Research and Development in Biotechnology (except Nanobiotechnology)	4,152
541715	Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	22,347
541720	Research and Development in the Social Sciences and Humanities	14,486
5418	Advertising, Public Relations, and Related Services	60,508
541810	Advertising Agencies	22,422
541820	Public Relations Agencies	15,448
541830	Media Buying Agencies	723
541840	Media Representatives	3,353
541850	Outdoor Advertising	2,370
541860	Direct Mail Advertising	4,632
541870	Advertising Material Distribution Services	969
541890	Other Services Related to Advertising	10,591
5419	Other Professional, Scientific, and Technical Services	368,803
541910	Marketing Research and Public Opinion Polling	12,460
541921	Photography Studios, Portrait	85,185
541922	Commercial Photography	15,480
541930	Translation and Interpretation Services	5,904
541940	Veterinary Services	44,172
541990	All Other Professional, Scientific, and Technical Services	205,602

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