Company lists · Data refreshed November 2026

Top 18 Transit labor organizations based in the United States

RevenueBase identified 49 company matches for transit labor organizations associated with the United States as of November 2026 and tracks 13,570 professional contacts across them, including 1,020 with verified work emails. Washington is the largest hub.

This list covers company matches for transit labor organizations associated with the United States, 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 November 6, 2026.

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 Nov 6, 2026 How this list was built
49Companies
13,570Contacts tracked
1,020Verified emails
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The 18 largest transit labor organizations based in the United States

Ranked by team size
Top 18 of 49 company matches for transit labor organizations based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 202610001+9,689 contacts →

Exact match

“The IBEW represents 901,831 active.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202610001+1,204 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026501-1,0001,032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026501-1,000631 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchIndependence, DC, United StatesHQ recorded Nov 6, 20261,001-5,000231 contacts →

Exact match

“We are the SMART Transportation Division, an AFL-CIO affiliate headquartered near Cleveland, Ohio.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSalem, OR, United StatesHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“We are an organization of more than people who, by joining together, are achieving what we cannot accomplish alone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAnchorage, AK, United StatesHQ recorded Nov 6, 20261,001-5,00063 contacts →

Exact match

“IBEW Local 1547 was chartered in Alaska on October 1, 1946.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCincinnati, OH, United StatesHQ recorded Nov 6, 20261,001-5,00055 contacts →

Exact match

“International Brotherhood of Electrical Workers The IBEW represents approximately active members and retirees who work in a wide variety of fields, including utilities…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026n/a42 contacts →

Exact match

“With more than members nationwide across air, rail, gaming and transit divisions, TWU moves America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchRockville, MD, United StatesHQ recorded Nov 6, 2026201-50033 contacts →

Exact match

“The Transportation Communications Union/IAM represents approximately members in the railroad industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchWashington, DC, United StatesHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“TWU Local is the largest local of the Transport Workers Union of America representing Southwest Airlines Employees.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWashington, OK, United StatesHQ recorded Nov 6, 20261-108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202651-2006 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Teamsters Local 14 is a transportation/trucking/railroad company based out of 2250 S Rancho Dr, Las Vegas, NV, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchTrenton, NJ, United StatesHQ recorded Nov 6, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWest Covina, CA, United StatesHQ recorded Nov 6, 202651-2005 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchOlympia, WA, United StatesHQ recorded Nov 6, 20261-103 contacts →

Exact match

“WSTA is a nonprofit corporation, representing 30 public transit systems in the state and the Washington State Department of Transportation’s (WSDOT’s) Public Transportation…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 18 of 49 transit labor organizations based in the United States

See the full list, filter by size, metro and specialty, and access 1,020 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transit labor organizations based in the United States at a glance

As of Nov 6, 2026
7.5%Verified-email coverage
276.9Average contacts per company
11-50Median size (employees)
16.3%Largest-city concentration · Washington
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
13
51-200
5
201-500
4
501-1,000
2
1,001-5,000
3
10001+
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 49 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “transit labor 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 1,020 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 November 6, 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.

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 “transit labor organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transit labor organizations are there based in the United States?

RevenueBase identified 49 company matches for transit labor organizations associated with the United States as of November 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 city has the most transit labor organizations?

Washington leads with 8 company records, followed by Chicago (2) and New York (2).

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 1,020 professional contacts with verified work emails tracked across these 49 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 November 6, 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.