Company lists · Data refreshed September 2026

Top 25 Industrial unions based in Canada

Name: Industrial unions based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 55 companies tracked

RevenueBase identified 55 industrial unions headquartered in Canada as of September 2026 and tracks 2,309 professional contacts across them, including 701 with verified work emails. Toronto is the largest hub.

This list covers industrial unions headquartered in Canada, 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 17, 2026.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

55Companies

2,309Contacts tracked

701Verified emails

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The 25 largest industrial unions based in Canada

Ranked by team size

Top 25 of 55 industrial unions based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial unions: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	CLAC	Partial evidence	Cambridge, ON, CanadaHQ checked Sep 17, 2026	201-500	297 contacts →
	Partial evidence “CLAC is an independent Canadian labour union that applies social principles of justice, respect, and dignity to the workplace community.” Source: RevenueBase Database · checked Sep 17, 2026
2	Confédération DES Syndicats Nationaux CSN	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 17, 2026	501-1,000	279 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
3	Iatse Local 873	Indirect evidence	Toronto, CanadaHQ checked Sep 17, 2026	501-1,000	274 contacts →
	Indirect evidence “The International Alliance of Theatrical Stage Employees Local 873” Source: RevenueBase Database · checked Sep 17, 2026
4	Centrale DES Syndicats DU Québec	Indirect evidence	Québec, QC, CanadaHQ checked Sep 17, 2026	201-500	228 contacts →
	Indirect evidence “La CSQ regroupe du personnel enseignant, professionnel et de soutien des commissions scolaires, des cégeps et des universités, des intervenantes en services de garde, des…” Source: RevenueBase Database · checked Sep 17, 2026
5	Unifor National	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	10001+	225 contacts →
	Partial evidence “Unifor is a Canadian union with members in every sector across the country.” Source: RevenueBase Database · checked Sep 17, 2026
6	Canadian Union Of Skilled Workers	Partial evidence	Etobicoke, ON, CanadaHQ checked Sep 17, 2026	1,001-5,000	89 contacts →
	Partial evidence “The Canadian Union of Skilled Workers (CUSW) is a community of blended skilled knowledge workers, employers and other partners, leading in an era of social and economic change.” Source: RevenueBase Database · checked Sep 17, 2026
7	Cupe Ontario	Partial evidence	Markham, ON, CanadaHQ checked Sep 17, 2026	11-50	47 contacts →
	Partial evidence “CUPE is Ontario’s community union, with members providing the quality public services we all rely on, in every part of the province, every day.” Source: RevenueBase Database · checked Sep 17, 2026
8	CMAW	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 17, 2026	11-50	37 contacts →
	Strong evidence “We are a diverse union of over members including carpenters, carpenter apprentices, lathers, millwrights, floorlayers, piledrivers, industrial workers and many other construction…” Source: RevenueBase Database · checked Sep 17, 2026
9	International Brotherhood Of Boilermakers Lodge 146	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	29 contacts →
	Indirect evidence “International Brotherhood of Boilermakers Lodge 146 is a company based out of 15220 114 Ave NW, Edmonton, Alberta, Canada.” Source: RevenueBase Database · checked Sep 17, 2026
10	Seiu Local 2	Partial evidence	Mississasuga, ON, CanadaHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “SEIU Local 2.on Brewery, General, and Professional Workers’ Union represents more than workers.” Source: RevenueBase Database · checked Sep 17, 2026
11	Ftq-Construction	Partial evidence	Anjou, QC, CanadaHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “La FTQ-Construction a le mandat de négocier les conventions collectives applicables dans les sous secteurs d’activités (industriel, commercial et institutionnel, génie civil et…” Source: RevenueBase Database · checked Sep 17, 2026
12	Seiu-West	Indirect evidence	Saskatoon, SK, CanadaHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “The mandate of SEIU-West is to improve the lives of working people and their families, and lead the way to a more just and humane society.” Source: RevenueBase Database · checked Sep 17, 2026
13	BC Federation Of Labour	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial evidence “The BC Federation of Labour represents over members from affiliated unions across the province, working in every aspect of the BC economy.” Source: RevenueBase Database · checked Sep 17, 2026
14	Fédération Indépendante DES Syndicats Autonomes Fisa	Indirect evidence	Québec, QC, CanadaHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “La Fédération Indépendante des Syndicats Autonomes (FISA) s’engage à défendre les droits des travailleurs en offrant une représentation professionnelle et des services…” Source: RevenueBase Database · checked Sep 17, 2026
15	Teaching Support Staff Union Tssu	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 17, 2026	51-200	12 contacts →
	Partial evidence “Certified in 1978, the Teaching Support Staff Union represents Teaching Assistants (TAs), Tutor Markers (TMs), Sessional Instructors (SIs), Language Instructors (LIs), and…” Source: RevenueBase Database · checked Sep 17, 2026
16	Liuna Local 527&527a	Indirect evidence	Nepean, ON, CanadaHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “Local 527 has had a unique heritage in that it is the product of mergers of two other very fine Labourers’ locals.” Source: RevenueBase Database · checked Sep 17, 2026
17	Ufcw Local 832	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “UFCW Local 832 represents Manitoban workers in cannabis, retail, food production, warehousing, hospitality, security and support sectors.” Source: RevenueBase Database · checked Sep 17, 2026
18	Workers United Canada Council	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	51-200	8 contacts →
	Indirect evidence “Workers United represents workers across Canada, and more across the United States.” Source: RevenueBase Database · checked Sep 17, 2026
19	Cope Ontario	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	11-50	7 contacts →
	Indirect evidence “We are a membership-driven organization with affiliation to the Canadian Labour Congress (CLC) and the Ontario Federation of Labour (OFL) giving us strength in millions, allowing…” Source: RevenueBase Database · checked Sep 17, 2026
20	Unifor Local 2002	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	11-50	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Civic Service Union 52	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “Civic Service Union 52 (CSU 52) represents over technical, professional, administrative and clerical workers within the City of Edmonton, Edmonton Public Library, TELUS World of…” Source: RevenueBase Database · checked Sep 17, 2026
22	Cswu Local 1611	Indirect evidence	Surrey, BC, CanadaHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Feel the Power.” Source: RevenueBase Database · checked Sep 17, 2026
23	Union DES Employé ES DE Service Ues800	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 17, 2026	51-200	4 contacts →
	Indirect evidence “L'UES 800 défend activement les droits et conditions de travail de plus de 20 membres en promouvant la solidarité, l’équité et le respect.” Source: RevenueBase Database · checked Sep 17, 2026
24	Ufcw Canada Local 1400	Indirect evidence	Saskatoon, SK, CanadaHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “The main purpose of the UFCW is to obtain collectively-bargained rights and benefits for its members, and to ensure the terms of Collective Bargaining Agreements, or contracts…” Source: RevenueBase Database · checked Sep 17, 2026
25	Ochu Cupe	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	1-10	3 contacts →
	Partial evidence “Founded in 1982, the Ontario Council of Hospital Unions/CUPE represents approximately health-care workers in hospitals and long-term care across Ontario.” Source: RevenueBase Database · checked Sep 17, 2026

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: industrial 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 industrial unions.
Partial evidence: Its own public description names part of industrial unions, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial 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 55 industrial unions based in Canada

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Industrial unions based in Canada at a glance

As of Sep 17, 2026

30.4%Verified-email coverage

42.0Average contacts per company

11-50Median size (employees)

12.7%Largest-city concentration · Toronto

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 55 companies.

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 industrial 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.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “industrial 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 industrial 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 industrial unions, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
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, 701 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 17, 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.

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 industrial 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 industrial unions are there based in Canada?

RevenueBase identified 55 industrial unions headquartered in Canada 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?

CLAC, headquartered in Cambridge, tops this list with the largest team on record.

Which city has the most industrial unions?

Toronto leads with 7 headquartered companies, followed by Burnaby (5) and Mississauga (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 701 verified decision-maker contacts tracked across these 55 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 17, 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.