Company lists · Data refreshed September 2026
Top 25 Teachers unions worldwide
RevenueBase identified 331 company matches for teachers unions worldwide as of September 2026 and tracks 11,646 professional contacts across them, including 3,256 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for teachers unions 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 22, 2026. Country and city lists for teachers unions 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.
The 25 largest teachers unions worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,293 contacts → | ||||
Exact match “The National Education Association (NEA), the nation's largest professional employee organization, is committed to advancing the cause of public education.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 577 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 22, 2026 · View company records in RevenueBase | |||||
| 3 | 495 contacts → | ||||
Exact match “NYSUT is more than people who work in, or are retired from, New York's schools, colleges, and healthcare facilities.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 437 contacts → | ||||
Exact match “The California Teachers Association is the preeminent voice for educators in California’s public schools and colleges, CTA is a powerful and passionate advocate for students and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 390 contacts → | ||||
Exact match “With nearly members in total, the United Federation of Teachers is a powerful advocate for public education and working families in New York City.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 390 contacts → | ||||
Exact match “BUPL er en fagforening for pædagoger og klubfolk med ca.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 330 contacts → | ||||
Exact match “De Algemene Onderwijsbond (AOb) is met leden de grootste onderwijsbond in alle sectoren van het onderwijs, van het primair onderwijs tot en met het wetenschappelijk onderwijs en…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 329 contacts → | ||||
Exact match “Sveriges Lärare är fackförbundet för alla lärare och studie- och yrkesvägledare.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 314 contacts → | ||||
Exact match “Utdanningsforbundet er Norges nest største fagforbund.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 305 contacts → | ||||
Exact match “The Michigan Education Association (MEA) is a self-governing education association, representing about teachers, education support professionals and higher-education employees…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 278 contacts → | ||||
Exact match “Danmarks Lærerforening (DLF) er fagforening for ca.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 268 contacts → | ||||
Exact match “The National Education Union stands up for the future of education.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 250 contacts → | ||||
Exact match “At members strong, IEA is the largest union in Illinois.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 245 contacts → | ||||
Exact match “The California School Employees Association is the largest classified school employees union in the United States, representing more than school support staff throughout…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 211 contacts → | ||||
Exact match “PSEA represents the labor, policy, and professional interests of public school teachers and education support professionals, staff in state higher education institutions, nurses…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 209 contacts → | ||||
Exact match “The Alberta Teachers' Association, as the professional organization of teachers, promotes and advances public education, safeguards standards of professional practice and serves…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 191 contacts → | ||||
Exact match “The Elementary Teachers' Federation of Ontario (ETFO) is the professional and protective organization representing over teachers, occasional teachers, and education workers…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 185 contacts → | ||||
Exact match “The NASUWT is The Teachers’ Union and is the voice of the teaching profession.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 168 contacts → | ||||
Exact match “The MTA is the voice of teachers, faculty, professional staff and education support professionals working at public schools, colleges and universities across Massachusetts.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 141 contacts → | ||||
Exact match “The Saskatchewan Teachers’ Federation has advanced the interests of teachers and advocated for excellence in public education for more than 80 years.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 134 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 122 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 121 contacts → | ||||
Exact match “The Ontario Secondary School Teachers' Federation (OSSTF/FEESO) is a union representing approximately secondary school teachers and education workers in the province of Ontario.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 114 contacts → | ||||
Exact match “The Community and Public Sector Union (CPSU), represents thousands of members across the country, working predominantly in the public sector.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 107 contacts → | ||||
Exact match “The Oregon Education Association (OEA) is a union that represents about educators working in pre-kindergarten through grade 12 public schools and community colleges.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “teachers unions”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 331 teachers unions worldwide
See the full list, filter by size, metro and specialty, and access 3,256 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Teachers unions worldwide at a glance
As of Sep 22, 2026Companies by employee count
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 teachers unions are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “teachers unions” 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 3,256 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 22, 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.
Teachers unions by location
1 lists · largest firstEvery Teachers unions 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 “teachers unions”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many teachers unions are there worldwide?
RevenueBase identified 331 company matches for teachers unions 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?
National Education Association tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most teachers unions?
The United States leads with 168 companies. Every teachers unions list by country and city is linked on this page.
Which city has the most teachers unions?
Sao Paulo leads with 7 company records, followed by Austin (4) and Columbus (4).
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 3,256 professional contacts with verified work emails tracked across these 331 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 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 331 teachers unions worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 teachers unions worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 331 matching company records for teachers unions worldwide, with 11,646 tracked contacts and 3,256 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 teachers unions worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Washington, United StatesReported employees: 501-1,000 | Washington, United States | 501-1,000 | Exact match | 1,293 contacts → |
“The National Education Association (NEA), the nation's largest professional employee organization, is committed to advancing the cause of public education.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  AFTaft.orgHQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 577 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | NYSUTnysut.org HQ: United StatesReported employees: 201-500 | United States | 201-500 | Exact match | 495 contacts → |
“NYSUT is more than people who work in, or are retired from, New York's schools, colleges, and healthcare facilities.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Burlingame, CA, United StatesReported employees: 201-500 | Burlingame, CA, United States | 201-500 | Exact match | 437 contacts → |
“The California Teachers Association is the preeminent voice for educators in California’s public schools and colleges, CTA is a powerful and passionate advocate for students and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 390 contacts → |
“With nearly members in total, the United Federation of Teachers is a powerful advocate for public education and working families in New York City.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | BUPLbupl.dk HQ: København Ø, DenmarkReported employees: 51-200 | København Ø, Denmark | 51-200 | Exact match | 390 contacts → |
“BUPL er en fagforening for pædagoger og klubfolk med ca.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | AOBaob.nl HQ: Utrecht, NetherlandsReported employees: 51-200 | Utrecht, Netherlands | 51-200 | Exact match | 330 contacts → |
“De Algemene Onderwijsbond (AOb) is met leden de grootste onderwijsbond in alle sectoren van het onderwijs, van het primair onderwijs tot en met het wetenschappelijk onderwijs en…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sveriges Läraresverigeslarare.se HQ: Stockholm, SwedenReported employees: 201-500 | Stockholm, Sweden | 201-500 | Exact match | 329 contacts → |
“Sveriges Lärare är fackförbundet för alla lärare och studie- och yrkesvägledare.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Utdanningsforbundetutdanningsforbundet.no HQ: Oslo, NorwayReported employees: 201-500 | Oslo, Norway | 201-500 | Exact match | 314 contacts → |
“Utdanningsforbundet er Norges nest største fagforbund.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: East Lansing, MI, United StatesReported employees: 501-1,000 | East Lansing, MI, United States | 501-1,000 | Exact match | 305 contacts → |
“The Michigan Education Association (MEA) is a self-governing education association, representing about teachers, education support professionals and higher-education employees…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Danmarks Lærerforeningdlf.org HQ: København K, DenmarkReported employees: 51-200 | København K, Denmark | 51-200 | Exact match | 278 contacts → |
“Danmarks Lærerforening (DLF) er fagforening for ca.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | National Education Unionneu.org.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 268 contacts → |
“The National Education Union stands up for the future of education.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Illinois Education Associationieanea.org HQ: Springfield, IL, United StatesReported employees: 51-200 | Springfield, IL, United States | 51-200 | Exact match | 250 contacts → |
“At members strong, IEA is the largest union in Illinois.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: San Jose, CA, United StatesReported employees: 201-500 | San Jose, CA, United States | 201-500 | Exact match | 245 contacts → |
“The California School Employees Association is the largest classified school employees union in the United States, representing more than school support staff throughout…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Harrisburg, PA, United StatesReported employees: 201-500 | Harrisburg, PA, United States | 201-500 | Exact match | 211 contacts → |
“PSEA represents the labor, policy, and professional interests of public school teachers and education support professionals, staff in state higher education institutions, nurses…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | The Alberta Teachers' Associationteachers.ab.ca HQ: Edmonton, AB, CanadaReported employees: 51-200 | Edmonton, AB, Canada | 51-200 | Exact match | 209 contacts → |
“The Alberta Teachers' Association, as the professional organization of teachers, promotes and advances public education, safeguards standards of professional practice and serves…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 191 contacts → |
“The Elementary Teachers' Federation of Ontario (ETFO) is the professional and protective organization representing over teachers, occasional teachers, and education workers…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nasuwtnasuwt.org.uk HQ: Birmingham, United KingdomReported employees: 201-500 | Birmingham, United Kingdom | 201-500 | Exact match | 185 contacts → |
“The NASUWT is The Teachers’ Union and is the voice of the teaching profession.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Massachusetts Teachers Associationmassteacher.org HQ: Quincy, MA, United StatesReported employees: 51-200 | Quincy, MA, United States | 51-200 | Exact match | 168 contacts → |
“The MTA is the voice of teachers, faculty, professional staff and education support professionals working at public schools, colleges and universities across Massachusetts.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Saskatchewan Teachers' Federationstf.sk.ca HQ: Saskatoon, SK, CanadaReported employees: 51-200 | Saskatoon, SK, Canada | 51-200 | Exact match | 141 contacts → |
“The Saskatchewan Teachers’ Federation has advanced the interests of teachers and advocated for excellence in public education for more than 80 years.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Centro DO Professorado Paulistacpp.org.br HQ: BrazilReported employees: 51-200 | Brazil | 51-200 | Exact match | 134 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | BCTFbctf.ca HQ: CanadaReported employees: 201-500 | Canada | 201-500 | Exact match | 122 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 121 contacts → |
“The Ontario Secondary School Teachers' Federation (OSSTF/FEESO) is a union representing approximately secondary school teachers and education workers in the province of Ontario.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Haymarket, AustraliaReported employees: 201-500 | Haymarket, Australia | 201-500 | Exact match | 114 contacts → |
“The Community and Public Sector Union (CPSU), represents thousands of members across the country, working predominantly in the public sector.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Oregon Education Associationoregoned.org HQ: Portland, OR, United StatesReported employees: 51-200 | Portland, OR, United States | 51-200 | Exact match | 107 contacts → |
“The Oregon Education Association (OEA) is a union that represents about educators working in pre-kindergarten through grade 12 public schools and community colleges.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 331 company matches
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Teachers unions: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
322 records in the displayed employee bands.
9 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 331 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Teachers unions by location
1 lists · largest firstEvery Teachers unions list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for teachers unions?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many teachers unions did RevenueBase find worldwide?
The saved snapshot records 331 matching company records, 11,646 tracked contacts and 3,256 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 teachers unions worldwide. Snapshot: September 22, 2026. https://revenuebase.ai/companies/browse/teachers-unions.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 teachers unions worldwide
RevenueBase records 331 matching company records for teachers unions worldwide, with 11,646 tracked contacts and 3,256 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 teachers unions worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Washington, United StatesReported employees: 501-1,000 | Washington, United States | 501-1,000 | Exact match | 1,293 contacts → |
“The National Education Association (NEA), the nation's largest professional employee organization, is committed to advancing the cause of public education.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | AFTaft.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 577 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | NYSUTnysut.org HQ: United StatesReported employees: 201-500 | United States | 201-500 | Exact match | 495 contacts → |
“NYSUT is more than people who work in, or are retired from, New York's schools, colleges, and healthcare facilities.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Burlingame, CA, United StatesReported employees: 201-500 | Burlingame, CA, United States | 201-500 | Exact match | 437 contacts → |
“The California Teachers Association is the preeminent voice for educators in California’s public schools and colleges, CTA is a powerful and passionate advocate for students and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 390 contacts → |
“With nearly members in total, the United Federation of Teachers is a powerful advocate for public education and working families in New York City.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | BUPLbupl.dk HQ: København Ø, DenmarkReported employees: 51-200 | København Ø, Denmark | 51-200 | Exact match | 390 contacts → |
“BUPL er en fagforening for pædagoger og klubfolk med ca.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | AOBaob.nl HQ: Utrecht, NetherlandsReported employees: 51-200 | Utrecht, Netherlands | 51-200 | Exact match | 330 contacts → |
“De Algemene Onderwijsbond (AOb) is met leden de grootste onderwijsbond in alle sectoren van het onderwijs, van het primair onderwijs tot en met het wetenschappelijk onderwijs en…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sveriges Läraresverigeslarare.se HQ: Stockholm, SwedenReported employees: 201-500 | Stockholm, Sweden | 201-500 | Exact match | 329 contacts → |
“Sveriges Lärare är fackförbundet för alla lärare och studie- och yrkesvägledare.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Utdanningsforbundetutdanningsforbundet.no HQ: Oslo, NorwayReported employees: 201-500 | Oslo, Norway | 201-500 | Exact match | 314 contacts → |
“Utdanningsforbundet er Norges nest største fagforbund.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: East Lansing, MI, United StatesReported employees: 501-1,000 | East Lansing, MI, United States | 501-1,000 | Exact match | 305 contacts → |
“The Michigan Education Association (MEA) is a self-governing education association, representing about teachers, education support professionals and higher-education employees…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Danmarks Lærerforeningdlf.org HQ: København K, DenmarkReported employees: 51-200 | København K, Denmark | 51-200 | Exact match | 278 contacts → |
“Danmarks Lærerforening (DLF) er fagforening for ca.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | National Education Unionneu.org.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 268 contacts → |
“The National Education Union stands up for the future of education.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Illinois Education Associationieanea.org HQ: Springfield, IL, United StatesReported employees: 51-200 | Springfield, IL, United States | 51-200 | Exact match | 250 contacts → |
“At members strong, IEA is the largest union in Illinois.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: San Jose, CA, United StatesReported employees: 201-500 | San Jose, CA, United States | 201-500 | Exact match | 245 contacts → |
“The California School Employees Association is the largest classified school employees union in the United States, representing more than school support staff throughout…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Harrisburg, PA, United StatesReported employees: 201-500 | Harrisburg, PA, United States | 201-500 | Exact match | 211 contacts → |
“PSEA represents the labor, policy, and professional interests of public school teachers and education support professionals, staff in state higher education institutions, nurses…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | The Alberta Teachers' Associationteachers.ab.ca HQ: Edmonton, AB, CanadaReported employees: 51-200 | Edmonton, AB, Canada | 51-200 | Exact match | 209 contacts → |
“The Alberta Teachers' Association, as the professional organization of teachers, promotes and advances public education, safeguards standards of professional practice and serves…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 191 contacts → |
“The Elementary Teachers' Federation of Ontario (ETFO) is the professional and protective organization representing over teachers, occasional teachers, and education workers…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nasuwtnasuwt.org.uk HQ: Birmingham, United KingdomReported employees: 201-500 | Birmingham, United Kingdom | 201-500 | Exact match | 185 contacts → |
“The NASUWT is The Teachers’ Union and is the voice of the teaching profession.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Massachusetts Teachers Associationmassteacher.org HQ: Quincy, MA, United StatesReported employees: 51-200 | Quincy, MA, United States | 51-200 | Exact match | 168 contacts → |
“The MTA is the voice of teachers, faculty, professional staff and education support professionals working at public schools, colleges and universities across Massachusetts.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Saskatchewan Teachers' Federationstf.sk.ca HQ: Saskatoon, SK, CanadaReported employees: 51-200 | Saskatoon, SK, Canada | 51-200 | Exact match | 141 contacts → |
“The Saskatchewan Teachers’ Federation has advanced the interests of teachers and advocated for excellence in public education for more than 80 years.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Centro DO Professorado Paulistacpp.org.br HQ: BrazilReported employees: 51-200 | Brazil | 51-200 | Exact match | 134 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | BCTFbctf.ca HQ: CanadaReported employees: 201-500 | Canada | 201-500 | Exact match | 122 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 121 contacts → |
“The Ontario Secondary School Teachers' Federation (OSSTF/FEESO) is a union representing approximately secondary school teachers and education workers in the province of Ontario.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Haymarket, AustraliaReported employees: 201-500 | Haymarket, Australia | 201-500 | Exact match | 114 contacts → |
“The Community and Public Sector Union (CPSU), represents thousands of members across the country, working predominantly in the public sector.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Oregon Education Associationoregoned.org HQ: Portland, OR, United StatesReported employees: 51-200 | Portland, OR, United States | 51-200 | Exact match | 107 contacts → |
“The Oregon Education Association (OEA) is a union that represents about educators working in pre-kindergarten through grade 12 public schools and community colleges.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 331 company matches
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Teachers unions: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
322 records in the displayed employee bands.
9 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 331 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Teachers unions by location
1 lists · largest firstEvery Teachers unions list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for teachers unions?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many teachers unions did RevenueBase find worldwide?
The saved snapshot records 331 matching company records, 11,646 tracked contacts and 3,256 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 teachers unions worldwide. Snapshot: September 22, 2026. https://revenuebase.ai/companies/browse/teachers-unions.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗