NAICS Code 561110 — Office Administrative Services

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is the only national industry under 56111 (Office Administrative Services).

Code	561110
Title	Office Administrative Services
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	$12.5 million in average annual receipts

Official definition (2022 NAICS)

This industry comprises establishments primarily engaged in providing a range of day-to-day office administrative services, such as financial planning; billing and recordkeeping; personnel; and physical distribution and logistics, for others on a contract or fee basis. These establishments do not provide operating staff to carry out the complete operations of a business.

Is a business under 561110 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 561110 qualifies as a small business if it does not exceed $12.5 million in average annual receipts. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — receipts are averaged over the latest 5 fiscal years.

Where 561110 sits in the hierarchy

Level	Code	Title
Sector	56	Administrative and Support and Waste Management and Remediation Services
Subsector	561	Administrative and Support Services
Industry Group	5611	Office Administrative Services
NAICS Industry	56111	Office Administrative Services
National Industry	561110	Office Administrative Services

Related SIC codes

Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.

SIC code	Title
8741	Management Services

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.