541690 Other Scientific and Technical Consulting Services

Official definition

This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on scientific and technical issues (except environmental).

Examples Census gives

• Agricultural consulting services
• Motion picture consulting services
• Biological consulting services
• Physics consulting services
• Chemical consulting services
• Radio consulting services
• Economic consulting services
• Safety consulting services
• Energy consulting services
• Security consulting services

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• Providing advice and assistance to businesses and other organizations on management issues are classified in Industry 54161, Management Consulting Services.
• Environmental consulting are classified in Industry 541620, Environmental Consulting Services.
• Providing architectural (except landscape) consulting services are classified in Industry 541310, Architectural Services.
• Providing landscape consulting services are classified in Industry 541320, Landscape Architectural Services.
• Providing engineering consulting services are classified in Industry 541330, Engineering Services.
• Providing building inspection services are classified in Industry 541350, Building Inspection Services.
• Providing computer software and hardware consulting services are classified in U.S. Industry 541512, Computer Systems Design Services.
• Providing insurance advisory services are classified in U.S. Industry 524298, All Other Insurance Related Activities.
• Providing construction activities or managing construction projects are classified in Sector 23, Construction, according to the type of project.

Source: US Census Bureau, 2022 NAICS cross-references.

Businesses that use this code

• Engineering consulting firm

Activities listed under 541690

The Census index assigns these 23 activities to this code. If your business matches one, this is your code.

• Agricultural consulting services
• Agrology consulting services
• Agronomy consulting services
• Biological consulting services
• Building envelope consulting services
• Chemical consulting services
• Dairy herd consulting services
• Economic consulting services
• Energy consulting services
• Entomology consulting services
• Geochemical consulting services
• Horticultural consulting services
• Hydrology consulting services
• Livestock breeding consulting services
• Motion picture consulting services
• Nuclear energy consulting services
• Physics consulting services
• Radio consulting services
• Roof consulting services
• Safety consulting services
• Security consulting services
• Veterinary consulting services
• Waterproof consulting services

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 541690

To count as a small business for SBA loans and federal contracts under NAICS 541690, your business (including affiliates) must not exceed $19 million in average annual receipts. Check your business.

Source: SBA table of size standards, effective March 17, 2023.

Closest UK SIC 2007 codes

There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 7490), so treat them as a starting point and check the definition.

• 74901Environmental consulting activitiesUK SIC
• 74902Quantity surveying activitiesUK SIC
• 74909Other professional, scientific and technical activities n.e.c.UK SIC

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

• 541620Environmental Consulting Services