Company lists · Data refreshed September 2026
Top 25 Airline unions worldwide
RevenueBase identified 127 airline unions worldwide as of September 2026 and tracks 7,723 professional contacts across them, including 2,155 with verified work emails. The United States is the largest market and Washington the largest hub.
This list covers airline unions worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for airline unions follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 airline unions worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,371 contacts → | ||||
Partial evidence “IATA is an international trade organization, created over 80 years ago by a group of airlines.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 683 contacts → | ||||
Strong evidence “The Air Line Pilots Association, Int'l (ALPA) is the largest airline pilot union in the world, representing more than pilots at 42 U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 595 contacts → | ||||
Indirect evidence “CWA represents workers in both private and public sectors.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 375 contacts → | ||||
Partial evidence “SMART, the International Association of Sheet Metal, Air, Rail and Transportation Workers, is one of North America’s most dynamic and diverse unions with members.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 356 contacts → | ||||
Partial evidence “Airlines for America (A4A) advocates on behalf of its members to shape crucial policies and measures that promote safety, security and a healthy U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 126 contacts → | ||||
Partial evidence “The Association of Flight Attendants-CWA (AFA-CWA) is the world's largest labor union organized by flight attendants for flight attendants.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 118 contacts → | ||||
Partial evidence “Founded in 1963, the Allied Pilots Association, the largest independent pilots union in the United States, is headquartered in Fort Worth, Texas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 89 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 75 contacts → | ||||
Indirect evidence “SWAPA helps provide a secure and rewarding career for our Pilots and their families by enhancing compensation and quality of life issues through enlightened and strategic…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 69 contacts → | ||||
Indirect evidence “The IPA is the collective bargaining unit for the more than 2,900 professional pilots who fly the 277 heavy jet UPS fleet.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 65 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 58 contacts → | ||||
Indirect evidence “O SNA (Sindicato Nacional dos Aeronautas) é a única organização representativa de classe dos pilotos e comissários de voo do Brasil, com atuação em todo o território nacional.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 52 contacts → | ||||
Indirect evidence “Fundado en 1965, el Sindicato Español de Pilotos de Líneas Aéreas (Sepla) es una institución independiente que representa a más de 8.800 pilotos de todas las compañías aéreas con…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 38 contacts → | ||||
Partial evidence “Airlines UK is the trade body for UK registered airlines, with members representing all sectors of the industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 contacts → | ||||
Indirect evidence “IATSE LOCAL 484 is a company based out of 4818 E BEN WHITE BLVD, AUSTIN, Texas, United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 21 contacts → | ||||
Partial evidence “SPEEA is a labor union representing engineers, technician and pilots in the aerospace industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 contacts → | ||||
Indirect evidence “Since 1977, the Professional Aviation Safety Specialists, AFL-CIO (PASS) has represented more than employees of the Federal Aviation Administration (FAA) and Department of Defense…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 19 contacts → | ||||
Partial evidence “The Australian Services Union has members in diverse industries: united for a stronger voice for workers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 19 contacts → | ||||
Indirect evidence “NJASAP, the NetJets Association of Shared Aircraft Pilots, represents the professional interests of the 3,700-plus pilots who fly in the service of NetJets Aviation, Inc, a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 17 contacts → | ||||
Indirect evidence “Somos la organización gremial pionera en la profesión y refrendamos a través del tiempo nuestro compromiso con la defensa de los derechos laborales y con la seguridad aérea a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 contacts → | ||||
Partial evidence “Founded in 1945, the New Zealand Air Line Pilots’ Association is an internationally affiliated professional association and trade union that represents over 2600 New Zealand…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 12 contacts → | ||||
Indirect evidence “Die AEROPERS ist der Berufsverband des Cockpitpersonals der Swiss International Air Lines und der Edelweiss Air.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 11 contacts → | ||||
Indirect evidence “De VNC is een onafhankelijke vakvereniging die puur en alleen de belangen van cabineleden vertegenwoordigt in de onderhandelingen met KLM, KLC, easyJet en Transavia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 11 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Partial evidence “The Transportation Trades Department (TTD) of the AFL-CIO is America's largest transportation labor federation, representing 39 unions and millions of workers across aviation…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: airline unions. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names airline unions.
- Partial evidence
- Its own public description names part of airline unions, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name airline unions. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 127 airline unions worldwide
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Airline unions worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among airline unions, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for airline unions are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “airline unions”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names airline unions), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among airline unions, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 2,155 across the full list. 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.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Airline unions by location
1 lists · largest firstEvery Airline 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 Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names airline unions, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many airline unions are there worldwide?
RevenueBase identified 127 airline unions worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
International AIR Transport Association Iata, headquartered in Geneva Le Grand-Saconnex, tops this list with the largest team on record.
Which country has the most airline unions?
The United States leads with 54 companies. Every airline unions list by country and city is linked on this page.
Which city has the most airline unions?
Washington leads with 10 headquartered companies, followed by Sao Paulo (5) and Las Vegas (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,155 verified decision-maker contacts tracked across these 127 companies.
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 Smart Search, 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.