The Professional, Scientific, and Technical Services sector comprises establishments that specialize in performing professional, scientific, and technical activities for others.
| NAICS Code |
Title |
U.S. Firms |
U.S. Employment |
| 54 |
Professional, Scientific, and Technical Services |
6,090,535 |
45,088,842 |
| 541 |
Professional, Scientific, and Technical Services |
6,090,535 |
45,088,842 |
| 5411 |
Legal Services |
1,413,636 |
7,594,434 |
| 54111 |
Offices of Lawyers |
1,320,739 |
7,087,041 |
| 541110 |
Offices of Lawyers |
1,320,739 |
7,087,041 |
| 54112 |
Offices of Notaries |
N/A |
N/A |
| 541120 |
Offices of Notaries |
N/A |
N/A |
| 54119 |
Other Legal Services |
93,144 |
489,043 |
| 541191 |
Title Abstract and Settlement Offices |
66,277 |
350,708 |
| 541199 |
All Other Legal Services |
26,882 |
127,776 |
| 5412 |
Accounting, Tax Preparation, Bookkeeping, and Payroll Services |
871,245 |
7,260,083 |
| 54121 |
Accounting, Tax Preparation, Bookkeeping, and Payroll Services |
871,245 |
7,260,083 |
| 541211 |
Offices of Certified Public Accountants |
424,988 |
2,654,496 |
| 541213 |
Tax Preparation Services |
130,581 |
886,844 |
| 541214 |
Payroll Services |
31,496 |
2,026,500 |
| 541219 |
Other Accounting Services |
284,951 |
1,323,122 |
| 5413 |
Architectural, Engineering, and Related Services |
738,283 |
7,347,747 |
| 54131 |
Architectural Services |
165,548 |
1,023,143 |
| 541310 |
Architectural Services |
165,548 |
1,023,143 |
| 54132 |
Landscape Architectural Services |
43,418 |
166,055 |
| 541320 |
Landscape Architectural Services |
43,418 |
166,055 |
| 54133 |
Engineering Services |
357,261 |
4,945,752 |
| 541330 |
Engineering Services |
357,261 |
4,945,752 |
| 54134 |
Drafting Services |
19,273 |
46,522 |
| 541340 |
Drafting Services |
19,273 |
46,522 |
| 54135 |
Building Inspection Services |
42,022 |
100,332 |
| 541350 |
Building Inspection Services |
42,022 |
100,332 |
| 54136 |
Geophysical Surveying and Mapping Services |
6,802 |
46,655 |
| 541360 |
Geophysical Surveying and Mapping Services |
6,802 |
46,655 |
| 54137 |
Surveying and Mapping (except Geophysical) Services |
64,855 |
309,663 |
| 541370 |
Surveying and Mapping (except Geophysical) Services |
64,855 |
309,663 |
| 54138 |
Testing Laboratories |
41,043 |
602,094 |
| 541380 |
Testing Laboratories |
41,043 |
602,094 |
| 5414 |
Specialized Design Services |
239,930 |
736,598 |
| 54141 |
Interior Design Services |
90,141 |
230,411 |
| 541410 |
Interior Design Services |
90,141 |
230,411 |
| 54142 |
Industrial Design Services |
12,349 |
66,563 |
| 541420 |
Industrial Design Services |
12,349 |
66,563 |
| 54143 |
Graphic Design Services |
121,898 |
369,044 |
| 541430 |
Graphic Design Services |
121,898 |
369,044 |
| 54149 |
Other Specialized Design Services |
15,554 |
44,492 |
| 541490 |
Other Specialized Design Services |
15,554 |
44,492 |
| 5415 |
Computer Systems Design and Related Services |
842,699 |
7,590,993 |
| 54151 |
Computer Systems Design and Related Services |
842,699 |
7,590,993 |
| 541511 |
Custom Computer Programming Services |
411,862 |
3,334,185 |
| 541512 |
Computer Systems Design Services |
327,122 |
2,757,364 |
| 541513 |
Computer Facilities Management Services |
27,454 |
496,835 |
| 541519 |
Other Computer Related Services |
78,967 |
828,983 |
| 5416 |
Management, Scientific, and Technical Consulting Services |
1,124,330 |
5,257,171 |
| 54161 |
Management Consulting Services |
863,265 |
4,094,455 |
| 541611 |
Administrative Management and General Management Consulting Services |
474,564 |
2,212,064 |
| 541612 |
Human Resources Consulting Services |
49,566 |
451,848 |
| 541613 |
Marketing Consulting Services |
233,672 |
785,584 |
| 541614 |
Process, Physical Distribution, and Logistics Consulting Services |
45,145 |
348,556 |
| 541618 |
Other Management Consulting Services |
60,782 |
130,358 |
| 54162 |
Environmental Consulting Services |
66,440 |
434,394 |
| 541620 |
Environmental Consulting Services |
66,440 |
434,394 |
| 54169 |
Other Scientific and Technical Consulting Services |
195,206 |
690,413 |
| 541690 |
Other Scientific and Technical Consulting Services |
195,206 |
690,413 |
| 5417 |
Scientific Research and Development Services |
105,523 |
2,986,155 |
| 54171 |
Research and Development in the Physical, Engineering, and Life Sciences |
91,283 |
2,772,787 |
| 541711 |
Research and Development in Biotechnology |
22,544 |
509,593 |
| 541712 |
Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) |
69,025 |
2,219,567 |
| 541713 |
Research and Development in Nanotechnology |
N/A |
N/A |
| 541714 |
Research and Development in Biotechnology (except Nanobiotechnology) |
N/A |
N/A |
| 541715 |
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) |
N/A |
N/A |
| 54172 |
Research and Development in the Social Sciences and Humanities |
14,289 |
168,296 |
| 541720 |
Research and Development in the Social Sciences and Humanities |
14,289 |
168,296 |
| 5418 |
Advertising, Public Relations, and Related Services |
276,401 |
2,339,179 |
| 54181 |
Advertising Agencies |
97,518 |
842,881 |
| 541810 |
Advertising Agencies |
97,518 |
842,881 |
| 54182 |
Public Relations Agencies |
61,945 |
298,539 |
| 541820 |
Public Relations Agencies |
61,945 |
298,539 |
| 54183 |
Media Buying Agencies |
6,333 |
72,305 |
| 541830 |
Media Buying Agencies |
6,333 |
72,305 |
| 54184 |
Media Representatives |
12,723 |
74,528 |
| 541840 |
Media Representatives |
12,723 |
74,528 |
| 54185 |
Outdoor Advertising |
15,275 |
101,941 |
| 541850 |
Outdoor Advertising |
15,275 |
101,941 |
| 54186 |
Direct Mail Advertising |
21,509 |
296,328 |
| 541860 |
Direct Mail Advertising |
21,509 |
296,328 |
| 54187 |
Advertising Material Distribution Services |
6,803 |
73,412 |
| 541870 |
Advertising Material Distribution Services |
6,803 |
73,412 |
| 54189 |
Other Services Related to Advertising |
55,094 |
439,730 |
| 541890 |
Other Services Related to Advertising |
55,094 |
439,730 |
| 5419 |
Other Professional, Scientific, and Technical Services |
487,805 |
3,677,777 |
| 54191 |
Marketing Research and Public Opinion Polling |
36,659 |
490,005 |
| 541910 |
Marketing Research and Public Opinion Polling |
36,659 |
490,005 |
| 54192 |
Photographic Services |
99,882 |
346,325 |
| 541921 |
Photography Studios, Portrait |
71,654 |
261,436 |
| 541922 |
Commercial Photography |
28,280 |
63,684 |
| 54193 |
Translation and Interpretation Services |
16,235 |
84,852 |
| 541930 |
Translation and Interpretation Services |
16,235 |
84,852 |
| 54194 |
Veterinary Services |
211,891 |
2,038,923 |
| 541940 |
Veterinary Services |
211,891 |
2,038,923 |
| 54199 |
All Other Professional, Scientific, and Technical Services |
123,188 |
484,431 |
| 541990 |
All Other Professional, Scientific, and Technical Services |
123,188 |
484,431 |