Six Digit NAICS Codes & Titles NAICS Search Click Any NAICS Code to See The Description and Top 10 Companies in that field. Codes Titles Total Marketable US Businesses 54Professional, Scientific, and Technical Services2,294,0495411Legal Services358,827541110Offices of Lawyers335,523541120Offices of Notaries6,439541191Title Abstract and Settlement Offices 11,476541199All Other Legal Services 5,3895412Accounting, Tax Preparation, Bookkeeping, and Payroll Services 185,434541211Offices of Certified Public Accountants 73,111541213Tax Preparation Services 63,372541214Payroll Services 3,064541219Other Accounting Services 45,8875413Architectural, Engineering, and Related Services 257,768541310Architectural Services38,992541320Landscape Architectural Services84,144541330Engineering Services96,861541340Drafting Services1,657541350Building Inspection Services8,628541360Geophysical Surveying and Mapping Services0541370Surveying and Mapping (except Geophysical) Services13,081541380Testing Laboratories14,4055414Specialized Design Services 75,466541410Interior Design Services35,939541420Industrial Design Services1,798541430Graphic Design Services35,925541490Other Specialized Design Services1,8045415Computer Systems Design and Related Services 208,614541511Custom Computer Programming Services 112,108541512Computer Systems Design Services 90,349541513Computer Facilities Management Services 1,158541519Other Computer Related Services4,9995416Management, Scientific, and Technical Consulting Services 671,559541611Administrative Management and General Management Consulting Services 186,335541612Human Resources Consulting Services 14,234541613Marketing Consulting Services 61,450541614Process, Physical Distribution, and Logistics Consulting Services 3,258541618Other Management Consulting Services 339,242541620Environmental Consulting Services23,853541690Other Scientific and Technical Consulting Services43,1875417Scientific Research and Development Services 43,885541713Research and Development in Nanotechnology 0541714Research and Development in Biotechnology (except Nanobiotechnology)4,842541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 23,521541720Research and Development in the Social Sciences and Humanities 15,5225418Advertising, Public Relations, and Related Services 63,485541810Advertising Agencies23,722541820Public Relations Agencies15,970541830Media Buying Agencies784541840Media Representatives3,542541850Outdoor Advertising2,506541860Direct Mail Advertising4,844541870Advertising Material Distribution Services1,029541890Other Services Related to Advertising 11,0885419Other Professional, Scientific, and Technical Services 429,011541910Marketing Research and Public Opinion Polling12,850541921Photography Studios, Portrait 87,013541922Commercial Photography 15,969541930Translation and Interpretation Services6,769541940Veterinary Services 46,855541990All Other Professional, Scientific, and Technical Services259,555 Click Here for Data Appends & Targeted Marketing Lists
