NAICS Code 54 – Professional, Scientific, and Technical Services
Official NAICS sector U.S. Census Bureau NAICS 2022
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Official definition
The Professional, Scientific, and Technical Services sector comprises establishments that specialize in performing professional, scientific, and technical activities for others. These activities require a high degree of expertise and training. The establishments in this sector specialize according to expertise and provide these services to clients in a variety of industries and, in some cases, to households. Activities performed include: legal advice and representation; accounting, bookkeeping, and payroll services; architectural, engineering, and specialized design services; computer services; consulting services; research services; advertising services; photographic services; translation and interpretation services; veterinary services; and other professional, scientific, and technical services.
This sector excludes establishments primarily engaged in providing a range of day-to-day office administrative services, such as financial planning, billing and recordkeeping, personnel supply, and physical distribution and logistics. These establishments are classified in NAICS Code 56 - Administrative and Support and Waste Management and Remediation Services.Source: U.S. Census Bureau, NAICS 2022
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Business Lists & Company Data for NAICS 54 - Professional, Scientific, and Technical Services
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Preview · details masked| Company | Contact & title | Website | Phone | Employees |
|---|---|---|---|---|
| Rockwell Collins Inc Cedar Rapids, IA | ||||
| Bio Rad Laboratories Inc Hercules, CA | ||||
| Perspecta Inc Chantilly, VA |
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Rockwell Collins Inc · Cedar Rapids, IA
Contact Website Phone Employees -
Bio Rad Laboratories Inc · Hercules, CA
Contact Website Phone Employees
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Includes: company, address, phone, website, contacts, emails, employees, sales volume, SIC & NAICS.
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A delivered list can include company name, address, phone, website, NAICS and SIC codes, employee size, and sales volume. Contact name, title, and business email are available on U.S. records when we have them. Field availability varies by record, and Canadian deliveries do not include business email addresses.
How are these company counts verified? Data sources, verification process, and count methodology.
Counts are SICCODE.com business locations available for purchase, not government census totals. Headquarters and branches are counted separately, and each location is classified by its primary SIC industry. Counts refresh when you change the country or state filter on this page.
Example companies
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805,098 verified U.S. companies
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- Oracle Corp Redwood City, CA View classification →
- GlaxoSmithKline Inc Philadelphia, PA View classification →
- Seagate Technology, LLC Scotts Valley, CA View classification →
- Tribune Publishing Co Chicago, IL View classification →
- Sas Institute Inc Cary, NC View classification →
Key facts
- Code
- 54
- Classification level
- Official NAICS sector
- Official source
- U.S. Census Bureau · NAICS 2022
Industry statistics
Historical statistics
2017 Economic Census
2017 Economic Census
- Establishments (2017)
- 1,336,357
Why do company counts differ?
The U.S. Economic Census counts establishments with paid employees that operated during the census year, including businesses that may have since closed. Its industry classifications draw on business-reported information and government records. SICCODE.com's counts reflect verified business records currently available for purchase, with classifications based on documented business activities. Differences in reporting periods, database coverage, classification methods and verification criteria mean the totals may differ.
NAICS classification hierarchy
Five official Census levels, from sector to national industry, plus a commercial extended level.
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Sector 54 Professional, Scientific, and Technical Services
One example classification path is shown. Other branches may exist. Extended 8-digit codes are commercial segments, not official Census NAICS codes.
Subsectors
Explore the subsectors within this sector to find more specific NAICS classifications.
Sources
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Official classification source U.S. Census Bureau.
North American Industry Classification System (2022), NAICS 54. U.S. Census Bureau → -
SICCODE.com commercial data Company-record counts, coverage, and related commercial data are maintained by SICCODE.com. Methodology →
SICCODE.com is an independent publisher. Official NAICS titles and definitions come from the U.S. Census Bureau. Commercial database counts are SICCODE.com records.
About this classification
This page combines the official U.S. Census Bureau NAICS definition with classification crosswalks and SICCODE.com commercial data. Classifications are reviewed regularly by the Classification Review Team.