NAICS 813930 Quarterly Industry Report
Labor Unions and Similar Labor Organizations
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 813930Sector: Other Services (except Public Administration) (81)Updated: Q1 2026
About This Report
This industry profile for Labor Unions and Similar Labor Organizations (NAICS 813930) draws on data from the U.S. Census Bureau[5], Bureau of Labor Statistics[4], and SBA size standards database[6]. Published by Fair Market Value and updated quarterly, it provides valuation professionals, labor relations analysts, and workforce development advisors with current market data. All quantitative claims are sourced to publicly verifiable databases.
Industry Snapshot
Key metrics for the labor unions and similar labor organizations industry.
NAICS Sector
81
Other Services (except Public Administration)
Industry Definition & Overview
Labor Unions and Similar Labor Organizations (NAICS 813930) encompasses establishments primarily engaged in promoting the interests of organized labor and union members per the U.S. Census Bureau[3]. Activities include collective bargaining agreement negotiation, grievance handling and arbitration representation, worker training and apprenticeship program operation, strike fund administration, workplace safety advocacy, and legislative lobbying on labor policy issues. This classification covers international unions, national unions, and local union organizations that represent workers across manufacturing, transportation, construction, public sector, education, healthcare, and service industries. Major organizations include the AFL-CIO federation, the International Brotherhood of Teamsters, the Service Employees International Union, the United Auto Workers, and the National Education Association. Union membership reached roughly 14.3 million workers representing about 10% of the wage and salary workforce per Bureau of Labor Statistics[4] data. Revenue comes primarily from member dues assessed as a percentage of wages, initiation fees, per capita taxes from affiliated locals, and investment income from pension and benefit trust fund assets. Per Census Bureau[5] data, approximately 6,500 union establishments employ roughly 55,000 staff workers in headquarters, regional, and local office operations that administer contracts, process grievances, and coordinate organizing campaigns. Based on the SBA Table of Size Standards[6], the size standard is $27 million in average annual receipts. Under National Labor Relations Board[7] oversight, union election procedures and unfair labor practice complaints receive federal adjudication. The Labor-Management Reporting and Disclosure Act requires unions to file annual financial reports with the Department of Labor[8] Office of Labor-Management Standards.
What's Included in This Industry
- Collective bargaining agreement negotiation
- Grievance handling and arbitration representation
- Worker training and apprenticeship programs
- Strike fund and benefit administration
- Workplace safety advocacy
- Legislative lobbying on labor policy
- Union organizing campaign operations
- Pension and benefit trust fund management
- Member education and leadership development
- International labor solidarity programs
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Sector | Other Services (except Public Administration) | 81 |
| Subsector | Religious, Grantmaking, Civic, Professional, and Similar Organizations | 813 |
| Industry Group | Business, Professional, Labor, Political, and Similar Organizations | 8139 |
| NAICS Industry | Labor Unions and Similar Labor Organizations | 81393 |
| National Industry | Labor Unions and Similar Labor Organizations | 813930 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 813910 | Business Associations | Business Associations represents employer and industry interests that labor unions negotiate against in collective bargaining, with business groups and labor organizations frequently taking opposing positions on wages, benefits, workplace regulation, and trade policy |
| 813920 | Professional Organizations | Professional Organizations promotes practitioner interests through credentialing and standards that sometimes overlap with union representation when professional employees in healthcare, education, and engineering bargain collectively through union contracts |
| 813410 | Civic and Social Organizations | Civic and Social Organizations operates community membership groups that share mutual aid and fellowship functions with labor unions, with both types of organizations providing member support networks and community service programming |
| 611513 | Apprenticeship Training | Apprenticeship Training delivers structured workplace learning programs that labor unions operate jointly with employers through registered apprenticeship systems in construction, manufacturing, and skilled trade occupations |
| 524292 | Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds | Third Party Administration of Insurance and Pension Funds manages employee benefit programs that labor unions negotiate and oversee through jointly administered trust funds providing health insurance, pension, and annuity benefits to union members |
| 541110 | Offices of Lawyers | Offices of Lawyers provides legal counsel for collective bargaining, grievance arbitration, and unfair labor practice proceedings that labor unions require from specialized labor law attorneys representing worker interests before the NLRB and courts |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | California | 8.4% | 1,076 |
| 2 | New York | 8.2% | 1,047 |
| 3 | Illinois | 6.0% | 771 |
| 4 | Ohio | 5.9% | 752 |
| 5 | Pennsylvania | 5.2% | 672 |
| 6 | New Jersey | 4.8% | 617 |
| 7 | Michigan | 4.8% | 616 |
| 8 | Texas | 3.6% | 465 |
| 9 | Massachusetts | 3.5% | 448 |
| 10 | Florida | 3.3% | 418 |
% Of Establishments
0%
8%
Source: County Business Patterns, U.S. Census Bureau[2]
Frequently Asked Questions
Common questions about this industry.
What is the NAICS code for labor unions?
NAICS 813930 covers labor unions and similar labor organizations including international unions, national unions, and local unions per the U.S. Census Bureau[3].
What is the SBA size standard?
Per the SBA size standard[6], the threshold is $27 million in average annual receipts for federal small business contracting eligibility for labor union entities.
How many union members are there in the U.S.?
Per Bureau of Labor Statistics[4] data, approximately 14.3 million workers hold union membership, representing about 10% of the wage and salary workforce across public and private sector employment.
What tax-exempt status do labor unions hold?
The IRS[12] classifies labor unions as 501(c)(5) labor organizations exempt from federal income tax on member activity revenue, with non-member income potentially subject to unrelated business income tax.
How are labor unions funded?
Revenue comes primarily from member dues assessed as a percentage of wages, initiation fees, per capita taxes from affiliated local unions, and investment income from pension and benefit trust fund assets per Department of Labor[8] financial disclosure data.
What is the NLRB?
The National Labor Relations Board[7] is the federal agency that oversees union representation elections, investigates unfair labor practice charges, and enforces the National Labor Relations Act governing private-sector labor relations.
What reporting requirements apply to unions?
The Labor-Management Reporting and Disclosure Act requires unions to file annual LM-2, LM-3, or LM-4 financial reports with the Department of Labor[8] Office of Labor-Management Standards, disclosing assets, liabilities, receipts, and disbursements.
What is the difference between a union and a professional association?
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, County Business Patterns census.gov
- [3]U.S. Census Bureau census.gov
- [4]Bureau of Labor Statistics bls.gov
- [5]Census Bureau data.census.gov
- [6]SBA Table of Size Standards sba.gov
- [7]National Labor Relations Board nlrb.gov
- [8]Department of Labor dol.gov
- [9]SBA lending programs sba.gov
- [10]SBA 7(a) loans sba.gov
- [11]504 loans sba.gov
- [12]IRS irs.gov
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