2022 NAICS national industry in sector 54 Professional, Scientific, and Technical Services

541310 Architectural Services

NAICS 541310 is the US industry code for architectural services. It covers establishments primarily engaged in planning and designing residential, institutional, leisure, commercial, and industrial buildings and structures by applying knowledge of design, construction procedures, zoning regulations, building codes, and building materials.

Code: 541310 (2022 NAICS)
Title: Architectural Services
Part of: Architectural, Engineering, and Related Services
SBA small business limit: Average annual receipts up to $12.5 million
Closest UK SIC: 71111, 71112, 71121, 71122 and 1 more (details)

Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.

Official definition

This industry comprises establishments primarily engaged in planning and designing residential, institutional, leisure, commercial, and industrial buildings and structures by applying knowledge of design, construction procedures, zoning regulations, building codes, and building materials.

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:

Planning and designing the development of land areas are classified in Industry 541320, Landscape Architectural Services.
Both the design and construction of buildings, highways, or other structures or in 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

Architecture firm

Activities listed under 541310

The Census index assigns these 7 activities to this code. If your business matches one, this is your code.

Architects' (except landscape) offices
Architects' (except landscape) private practices
Architectural (except landscape) consultants' offices
Architectural (except landscape) design services
Architectural (except landscape) services
Architectural construction specifications consulting services
Building architectural design services

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 541310

To count as a small business for SBA loans and federal contracts under NAICS 541310, your business (including affiliates) must not exceed $12.5 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: 7110), so treat them as a starting point and check the definition.

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

Similar codes to compare

Data last changed November 14, 2026. How this page is built.