NAICS 54

NAICS Code 54: Professional, Scientific, and Technical Services

The NAICS code for Professional, Scientific, and Technical Services is 54.

The Professional, Scientific, and Technical Services sector includes establishments where human capital is the major input. These firms deliver specialized expertise in law, accounting, architecture, engineering, computer systems design, consulting, research, advertising, and veterinary services.

NAICS 54 is a 2-digit sector in the NAICS 2022 classification system, covering 1 subsectors and 9 industry groups.

2,489,746

Total US Entities

Subsectors

Industry Groups

Classification

NAICS Hierarchy

Code	Title	US Entities
541	NAICS 541 — Professional, Scientific, and Technical Services	2,489,746
5411	NAICS 5411 — Legal Services	359,026
54111	NAICS 54111 — Offices of Lawyers	340,000
54112	NAICS 54112 — Offices of Notaries	5,000
54119	NAICS 54119 — Other Legal Services	14,026
5412	NAICS 5412 — Accounting, Tax Preparation, Bookkeeping, and Payroll Services	188,917
54121	NAICS 54121 — Accounting, Tax Preparation, Bookkeeping, and Payroll Services	188,917
5413	NAICS 5413 — Architectural, Engineering, and Related Services	268,147
54131	NAICS 54131 — Architectural Services	60,000
54132	NAICS 54132 — Landscape Architecture Services	15,000
54133	NAICS 54133 — Engineering Services	150,000
54134	NAICS 54134 — Drafting Services	5,000
54135	NAICS 54135 — Building Inspection Services	15,000
54136	NAICS 54136 — Geophysical Surveying and Mapping Services	10,000
54137	NAICS 54137 — Testing Laboratories	8,147
54138	NAICS 54138 — Interior Design Services	5,000
5414	NAICS 5414 — Specialized Design Services	332,021
54141	NAICS 54141 — Interior Design Services	80,000
54142	NAICS 54142 — Industrial Design Services	20,000
54143	NAICS 54143 — Graphic Design Services	180,000
54149	NAICS 54149 — Other Specialized Design Services	52,021
5415	NAICS 5415 — Computer Systems Design and Related Services	251,161
54151	NAICS 54151 — Computer Systems Design and Related Services	251,161
5416	NAICS 5416 — Management, Scientific, and Technical Consulting Services	750,642
54161	NAICS 54161 — Management Consulting Services	500,000
54162	NAICS 54162 — Environmental Consulting Services	50,000
54169	NAICS 54169 — Other Scientific and Technical Consulting Services	200,642
5417	NAICS 5417 — Scientific Research and Development Services	43,863
54171	NAICS 54171 — Research and Development in the Physical, Engineering, and Life Sciences	35,000
54172	NAICS 54172 — Research and Development in the Social Sciences and Humanities	8,863
5418	NAICS 5418 — Advertising, Public Relations, and Related Services	63,457
54181	NAICS 54181 — Advertising Agencies	25,000
54182	NAICS 54182 — Public Relations Agencies	10,000
54183	NAICS 54183 — Media Buying Agencies	5,000
54184	NAICS 54184 — Media Representatives	3,000
54185	NAICS 54185 — Indoor and Outdoor Display Advertising	5,000
54186	NAICS 54186 — Direct Mail Advertising	3,000
54187	NAICS 54187 — Advertising Material Distribution Services	2,000
54189	NAICS 54189 — Other Services Related to Advertising	10,457
5419	NAICS 5419 — Other Professional, Scientific, and Technical Services	232,512
54191	NAICS 54191 — Marketing Research and Public Opinion Polling	15,000
54192	NAICS 54192 — Photography Studios, Portrait	40,000
54193	NAICS 54193 — Other Commercial Photography	25,000
54194	NAICS 54194 — Veterinary Services	100,000
54199	NAICS 54199 — All Other Professional, Scientific, and Technical Services	52,512

Sample Data

Sample Companies in This Industry

Sector 54 — Professional, Scientific, and Technical Services

Company Name	Location	Employees	NAICS Code
Deloitte LLP	New York, NY	10,000+	541
McKinsey & Company	New York, NY	10,000+	541
Gartner Inc	Stamford, CT	10,000+	541
Booz Allen Hamilton	McLean, VA	10,000+	541
Parsons Corporation	Centreville, VA	10,000+	541
EPAM Systems Inc	Newtown, PA	10,000+	541
ICF International Inc	Fairfax, VA	5,000-9,999	541
FTI Consulting Inc	Washington, DC	5,000-9,999	541
Heidrick & Struggles International	Chicago, IL	1,000-4,999	541
DLT Solutions LLC	Herndon, VA	500-999	541

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Other NAICS Sectors

NAICS 11 — Agriculture, Forestry, Fishing and Hunting367,959 entities

NAICS 21 — Mining, Quarrying, and Oil and Gas Extraction33,339 entities

NAICS 22 — Utilities52,270 entities

NAICS 23 — Construction1,512,763 entities

NAICS 31-33 — Manufacturing660,640 entities

NAICS 42 — Wholesale Trade698,477 entities

NAICS 44-45 — Retail Trade1,870,617 entities

NAICS 48-49 — Transportation and Warehousing711,582 entities

NAICS 51 — Information370,463 entities

NAICS 52 — Finance and Insurance771,419 entities

NAICS 53 — Real Estate and Rental and Leasing926,476 entities

NAICS 55 — Management of Companies and Enterprises93,116 entities

NAICS 56 — Administrative and Support and Waste Management and Remediation Services1,553,879 entities

NAICS 61 — Educational Services430,343 entities

NAICS 62 — Health Care and Social Assistance1,695,931 entities

NAICS 71 — Arts, Entertainment, and Recreation385,880 entities

NAICS 72 — Accommodation and Food Services931,927 entities

NAICS 81 — Other Services (except Public Administration)1,955,493 entities

NAICS 92 — Public Administration256,211 entities

Working with legacy records? convert a NAICS code to SIC using the mapping table — NAICS 2022 at the five-digit industry level paired with SIC 1987 four-digit industries, with coverage gaps stated.