813990 — Other Similar Organizations (except Business, Professional, Labor, and Political Organizations)
Description
This industry comprises establishments (except religious organizations, social advocacy organizations, civic and social organizations, business associations, professional organizations, labor unions, and political organizations) primarily engaged in promoting the interests of their members (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Illustrative Examples
- Athletic associations and leagues, regulatory
- Property owners' associations
- Condominium and homeowners' associations
- Tenants' associations (except advocacy)
- Cooperative owners' associations
Exclusions & Cross-References
- Operating religious organizations, such as churches, religious temples, mosques, and monasteries--are
- classified in Industry 813110, Religious Organizations;
- Raising funds for a wide range of social welfare activities and establishments known as grantmaking
- foundations or charitable trusts--are classified in Industry 81321, Grantmaking and Giving Services;
- Advocating social causes or issues--are classified in Industry 81331, Social Advocacy Organizations;
- Promoting the civic and social interests of their members--are classified in Industry 813410, Civic and
- Social Organizations;
- Promoting the business interests of their members--are classified in Industry 813910, Business
- Associations;
- Promoting the professional interests of their members and the profession as a whole--are classified in
- Industry 813920, Professional Organizations;
- Promoting the interests of organized labor and union employees--are classified in Industry 813930, Labor
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 6531 - Real Estate Agents and Managers (via SIC1987:6531→NAICS1997:81399→2002:813990→2007:813990→2012:813990→2017:813990→2022:813990)
- SIC 8641 - Civic, Social, and Fraternal Associations (via SIC1987:8641→NAICS1997:81399→2002:813990→2007:813990→2012:813990→2017:813990→2022:813990)
- SIC 8699 - Membership Organizations, NEC (via SIC1987:8699→NAICS1997:81399→2002:813990→2007:813990→2012:813990→2017:813990→2022:813990)
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 813990 valid in 2022? ▾
Yes, 813990 is a valid 6-digit 2022 NAICS national industry code representing 'Other Similar Organizations (except Business, Professional, Labor, and Political Organizations)' under Sector 81 in the official classification index.
What is the SBA size standard for NAICS code 813990? ▾
The Small Business Administration (SBA) has established a small business size standard of $13,500,000 for NAICS code 813990 (Other Similar Organizations (except Business, Professional, Labor, and Political Organizations)), calculated based on receipts.
What is the legacy SIC equivalent for NAICS 813990? ▾
According to official Census Bureau concordance tables, NAICS code 813990 (Other Similar Organizations (except Business, Professional, Labor, and Political Organizations)) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 6531 - Real Estate Agents and Managers, 8641 - Civic, Social, and Fraternal Associations, 8699 - Membership Organizations, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 813990:
- 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 813990 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Other Similar Organizations (except Business, Professional, Labor, and Political Organizations)).
- IRS PBA Code for HOA — Principal Business Activity tax reporting details.
- 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.