813920 — Professional Organizations
Description
This industry comprises establishments primarily engaged in promoting the professional interests of their members and the profession as a whole. These establishments may conduct research; develop statistics; sponsor quality and certification standards; lobby public officials; or publish newsletters, books, or periodicals for distribution to their members.
Illustrative Examples
- Bar associations
- Learned societies
- Dentists' associations
- Peer review boards
- Engineers' associations
- Professional standards review boards
- Health professionals' associations
- Scientists' associations
Overview Facts
| NAICS Code | 813920 |
|---|---|
| Industry Title | Professional Organizations |
| SBA Size Standard | $23,500,000 |
| U.S. Establishments | 6,529 (Census CBP, 2023) |
| IRS PBA Code | 813000 (rolled-up match) |
| Sectors Hierarchy | Sector 81 → 813 → 8139 |
| 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 8621 - Professional Membership Organizations (via SIC1987:8621→NAICS1997:81392→2002:813920→2007:813920→2012:813920→2017:813920→2022:813920)
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 G099 — Other Social Services
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 813920:
- Sector 81 Directory Hub — List of related industries in the Other Services (except Public Administration) 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 8139
Frequently Asked Questions (FAQ)
Is 813920 a valid 2022 NAICS code?
NAICS 813920 is 'Professional Organizations', a 2022 U.S. national industry under Sector 81 (Other Services (except Public Administration)); the SBA small-business size standard is $23,500,000.
What is the SBA size standard for NAICS 813920?
The SBA small business size standard for NAICS 813920 is $23,500,000 (based on receipts).
What is the legacy SIC code mapping for 813920?
NAICS code 813920 maps to the legacy 1987 SIC codes: 8621 - Professional Membership Organizations.