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NAICS 561110

Office Administrative Services

Sector: Administrative and Support Services

SBA size standard
$12.5M
Top buying agencies
  • Department of Defense
  • Department of Health and Human Services
  • General Services Administration

Open opportunities in NAICS 561110

Updated August 24, 2026

74active solicitations

Most active buyers

  • Department of Defense48
  • Department of Health and Human Services5
  • United States Trade and Development Agency5
  • Department of Homeland Security4
  • Department of Energy2

Most common set-asides

  • Total Small Business Set-Aside (FAR 19.5)18
  • Unrestricted14
  • Service-Disabled Veteran-Owned Small Business Set Aside12
  • 8a Competed8
  • Small Business Set Aside - Total7

Counts reflect active contract opportunities ingested from SAM.gov and refresh daily. Figures move as solicitations are posted, amended, and closed.

Description

Establishments primarily engaged in providing a range of day-to-day office administrative services on a contract or fee basis.

Common uses in federal contracting

  • Administrative and clerical support services
  • Mailroom and records management
  • Program support office staffing

How to use this NAICS

Add NAICS 561110 to your SAM.gov entity profile to be identified as a provider in this industry. If you are a small business under the $12.5M size standard, you qualify for small-business set-asides in this code.

See our guide to federal set-asides for a walk-through of which programs you can stack on top of this NAICS.

Related NAICS codes

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