561110 — Office Administrative Services
Description
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.
Overview Facts
| NAICS Code | 561110 |
|---|---|
| Industry Title | Office Administrative Services |
| SBA Size Standard | $12,500,000 |
| U.S. Establishments | 36,864 (Census CBP, 2023) |
| IRS PBA Code | 561110 (exact match) |
| Sectors Hierarchy | Sector 56 → 561 → 5611 |
| Source / Verified | US Census 2022 NAICS Manual, Census CBP / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 8741 - Management Services (via SIC1987:8741→NAICS1997:56111→2002:561110→2007:561110→2012:561110→2017:561110→2022:561110)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC R699 — Other Administrative Support Services
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 561110:
- Sector 56 Directory Hub — List of related industries in the Administrative and Support and Waste Management and Remediation Services sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 5611
Frequently Asked Questions (FAQ)
Is 561110 a valid 2022 NAICS code?
NAICS 561110 is 'Office Administrative Services', a 2022 U.S. national industry under Sector 56 (Administrative and Support and Waste Management and Remediation Services); the SBA small-business size standard is $12,500,000.
What is the SBA size standard for NAICS 561110?
The SBA small business size standard for NAICS 561110 is $12,500,000 (based on receipts).
What is the legacy SIC code mapping for 561110?
NAICS code 561110 maps to the legacy 1987 SIC codes: 8741 - Management Services.