Company lists · Data refreshed September 2026

Top 25 Collective bargaining organizations worldwide

RevenueBase identified 866 company matches for collective bargaining organizations worldwide as of September 2026 and tracks 37,699 professional contacts across them, including 7,690 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for collective bargaining organizations worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026. Country and city lists for collective bargaining organizations follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built
866Companies
37,699Contacts tracked
7,690Verified emails
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The 25 largest collective bargaining organizations worldwide

Ranked by team size
Top 25 of 866 company matches for collective bargaining organizations worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202610001+9,357 contacts →

Exact match

“The IBEW represents 901,831 active.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchKøbenhavn S, DenmarkHQ recorded Sep 19, 20261,001-5,0001,518 contacts →

Exact match

“HK er en af Danmarks største fagforeninger med næsten medlemmer, der arbejder inden for bl.a.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchWashington, DC, United StatesHQ recorded Sep 19, 2026501-1,0001,406 contacts →

Exact match

“We are the Service Employees International Union, an organization of 2-million members united by the belief in the dignity and worth of workers and the services they provide and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchBrussel, BelgiumHQ recorded Sep 19, 20261,001-5,0001,203 contacts →

Exact match

“Het ACV is met 1,4 miljoen leden de grootste vakbond van België.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchKøbenhavn V, DenmarkHQ recorded Sep 19, 20261,001-5,0001,156 contacts →

Exact match

“3F er Danmarks største fagforening med over medlemmer.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202610001+1,147 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Sep 19, 2026501-1,0001,052 contacts →

Exact match

“The Teamsters are one of North America’s largest, most diverse unions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchUnited KingdomHQ recorded Sep 19, 20261,001-5,0001,029 contacts →

Exact match

“Unite is Britain's biggest union with 1.5 million members in every type of workplace Unite is the union for the 21st century.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Sep 19, 2026501-1,000983 contacts →

Exact match

“AFSCME is the nation’s largest and fastest growing public services employees union.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026501-1,000829 contacts →

Exact match

“The mission of 1199SEIU is to advocate for quality healthcare, good jobs and social justice for all.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchUtrecht, NetherlandsHQ recorded Sep 19, 2026n/a778 contacts →

Exact match

“De naam Vakmensen zegt het al.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 19, 2026501-1,000685 contacts →

Exact match

“GMB is a trade union that represents all workers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026201-500610 contacts →

Exact match

“32BJ SEIU is the largest property service workers union in the country, representing more than office cleaners, security officers, doormen, porters, maintenance workers, bus…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchWashington, DC, United StatesHQ recorded Sep 19, 2026501-1,000595 contacts →

Exact match

“CWA represents workers in both private and public sectors.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchFrankfurt Am Main, GermanyHQ recorded Sep 19, 20265,001-10,000581 contacts →

Exact match

“Gute Arbeitsbedingungen, faire Entlohnung, berufliche Perspektiven, sichere Arbeitsplätze, Mitbestimmung und Demokratie: Das sind die Ziele, die die IG Metall verfolgt.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchWashington, DC, United StatesHQ recorded Sep 19, 2026201-500577 contacts →

Exact match

“The AFT is a union of professionals that champions fairness; democracy; economic opportunity; and high-quality public education, healthcare and public services for our students…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchBern, SwitzerlandHQ recorded Sep 19, 20261,001-5,000486 contacts →

Exact match

“With around members, Unia is the largest trade union in Switzerland.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202651-200420 contacts →

Exact match

“The AFL-CIO represents people who work.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchOslo, NorwayHQ recorded Sep 19, 202651-200322 contacts →

Exact match

“Fagforeningen Delta har medlemmer i alle deler av arbeidslivet, både i offentlig tjenesteyting og i private virksomheter.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchCambridge, ON, CanadaHQ recorded Sep 19, 2026201-500297 contacts →

Exact match

“CLAC is an independent Canadian labour union that applies social principles of justice, respect, and dignity to the workplace community.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchHannover, GermanyHQ recorded Sep 19, 2026501-1,000294 contacts →

Exact match

“Wir sind eine starke Gemeinschaft und zählen mit mehr als Mitgliedern zu den größten Gewerkschaften in Deutschland.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchMontréal, QC, CanadaHQ recorded Sep 19, 2026501-1,000279 contacts →

Exact match

“Forte de plus de 330 membres répartis dans plus de 1 600 syndicats, la Confédération des syndicats nationaux (CSN) est un pilier du mouvement syndical québécois.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchToronto, CanadaHQ recorded Sep 19, 2026501-1,000274 contacts →

Exact match

“The International Alliance of Theatrical Stage Employees Local 873”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchMile End, CanadaHQ recorded Sep 19, 2026501-1,000245 contacts →

Exact match

“Our union is workers across the country from more than 45 industries and all walks of life, standing together to make a difference.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchCaba, IndiaHQ recorded Sep 19, 2026501-1,000242 contacts →

Exact match

“UTEDYC significa: Unión Trabajadores de Entidades Deportivas y Civiles.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 866 collective bargaining organizations worldwide

See the full list, filter by size, metro and specialty, and access 7,690 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Collective bargaining organizations worldwide at a glance

As of Sep 19, 2026
20.4%Verified-email coverage
43.5Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
375
11-50
230
51-200
118
201-500
46
501-1,000
29
1,001-5,000
25
5,001-10,000
8
10001+
23

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for collective bargaining organizations are linked below.
What qualifies
Company records worldwide whose business descriptions match “collective bargaining organizations” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 7,690 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Collective bargaining organizations by location

2 lists · largest first

Every Collective bargaining organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “collective bargaining organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many collective bargaining organizations are there worldwide?

RevenueBase identified 866 company matches for collective bargaining organizations worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

International Brotherhood Of Electrical Workers Ibew tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most collective bargaining organizations?

The United States leads with 303 companies, followed by Canada (62). Every collective bargaining organizations list by country and city is linked on this page.

Which city has the most collective bargaining organizations?

New York leads with 22 company records, followed by Washington (22) and Paris (15).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 7,690 professional contacts with verified work emails tracked across these 866 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.