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 (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Illustrative Examples
- Bar associations
- Learned societies
- Dentists' associations
- Peer review boards
- Engineers' associations
- Professional standards review boards
- Health professionals' associations
- Scientists' associations
Overview Facts
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)
Frequently Asked Questions (FAQ)
Is NAICS code 813920 valid in 2022? ▾
Yes, 813920 is a valid 6-digit 2022 NAICS national industry code representing 'Professional Organizations' under Sector 81 in the official classification index.
What is the SBA size standard for NAICS code 813920? ▾
The Small Business Administration (SBA) has established a small business size standard of $23,500,000 for NAICS code 813920 (Professional Organizations), calculated based on receipts.
What is the legacy SIC equivalent for NAICS 813920? ▾
According to official Census Bureau concordance tables, NAICS code 813920 (Professional Organizations) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 8621 - Professional Membership Organizations.
Related Pages & Tools
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.
- NAICS 813920 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Professional Organizations).
- 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.