Company lists · Data refreshed September 2026

Top 25 Union consulting firms worldwide

RevenueBase identified 584 union consulting firms worldwide as of September 2026 and tracks 3,618 professional contacts across them, including 830 with verified work emails. Italy is the largest market and Paris the largest hub.

This list covers union consulting firms 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 29, 2026. Country and city lists for union consulting firms 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
584Companies
3,618Contacts tracked
830Verified emails
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The 25 largest union consulting firms worldwide

Ranked by team size
Top 25 of 584 union consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to union consulting firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBelo Horizonte, BrazilHQ checked Sep 29, 2026201-500452 contacts →

Partial evidence

“Since 2004, we have helped companies solve their challenges in People, Management, Security and Trade Union Relations, delivering world-class results.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceItalyHQ checked Sep 29, 2026n/a191 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-200145 contacts →

Indirect evidence

“From the beginning, Frederic W.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceTroy, MI, United StatesHQ checked Sep 29, 202651-20087 contacts →

Indirect evidence

“People Results is an experienced team of consultants who collaborate, innovate, and anticipate mission-critical challenges and deliver impactful business results.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceLake Barrington, IL, United StatesHQ checked Sep 29, 202651-20048 contacts →

Partial evidence

“Welcome to Union One, a national advisory, brokerage, and technology firm serving labor unions.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceMadrid, SpainHQ checked Sep 29, 202651-20048 contacts →

Indirect evidence

“Sincro es una consultora especializada en compliance laboral & dirección estratégica de personas y en asesoramiento fiscal y contable que presta servicios estratégicos tanto a…”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceBroken Arrow, OK, United StatesHQ checked Sep 29, 202611-5041 contacts →

Partial evidence

“LRI Consulting Services, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 202611-5040 contacts →

Partial evidence

“Clemans Nelson is the preeminent public sector labor relations and human resource consulting firm in the state of Ohio.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceDistrict Of Columbia, United StatesHQ checked Sep 29, 202611-5040 contacts →

Partial evidence

“FH Solutions Group (FHSG) is a national human resources and labor relations consulting firm headquartered in Washington, DC.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceMontebelluna, ItalyHQ checked Sep 29, 202611-5040 contacts →

Indirect evidence

“Studi Professionali Integrati nasce nel dall’iniziale collaborazione di Dottori Commercialisti ed Avvocati e si sviluppa – secondo un'innovativa visione del servizio professionale…”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5027 contacts →

Indirect evidence

“SYNCEA est un cabinet pluridisciplinaire d'expertise et de conseil auprès des représentants du personnel.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceBogotá, ColombiaHQ checked Sep 29, 202611-5027 contacts →

Indirect evidence

“Firma de asesores y consultores laborales, la cual cuenta con oficinas en Bogotá, Medellin y Barranquilla y ofrece un amplio portafolio de servicios profesionales, todos…”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceMilano, ItalyHQ checked Sep 29, 202611-5026 contacts →

Indirect evidence

“Persone, soluzioni, innovazione.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceRoma, ItalyHQ checked Sep 29, 202611-5026 contacts →

Indirect evidence

“Da Consulenti del Lavoro alla Consulenza per il Lavoro e per le Risorse Umane”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidencePanamaHQ checked Sep 29, 202611-5026 contacts →

Indirect evidence

“MSA Consultores is an accounting company based out of Panama.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceCanberra, AustraliaHQ checked Sep 29, 202611-5025 contacts →

Partial evidence

“Kitbag Consulting is a management consultancy based upon experienced, like minded, well credentialed public and private sector practitioners who have come together to network…”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidencePanamaHQ checked Sep 29, 202651-20024 contacts →

Indirect evidence

“ASESORÍA EMPRESARIAL, GESTIÓN HUMANA Y DERECHO LABORAL.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceSundbyberg, SwedenHQ checked Sep 29, 202611-5024 contacts →

Partial evidence

“Quest Consulting är ett auktoriserad konsultbolag med kollektivavtal, försäkringar, friskvård och tjänstepension.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceMilano, ItalyHQ checked Sep 29, 202611-5019 contacts →

Indirect evidence

“Fondato a Milano nel 1978, lo Studio Professionale Associato Terrazzini & Partners si occupa di consulenza del lavoro.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5019 contacts →

Indirect evidence

“Syntec Conseil est le syndicat professionnel représentatif des sociétés de conseil en France.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceVigo, SpainHQ checked Sep 29, 202611-5018 contacts →

Indirect evidence

“Asesority le ofrece servicios profesionales de gestión, consultoría y asesoramiento integral para empresas y trabajadores: Asesoría de empresas, Consultoría laboral para empresas…”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceCuritiba, BrazilHQ checked Sep 29, 20261-1017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceBrussels, BelgiumHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“With offices in Brussels and Madrid, ianusGroup for sustainable businesses offers tailor-made strategic solutions to private companies, trade associations, not-for profit…”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceMilano, ItalyHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“È uno studio di consulenza del lavoro che opera da oltre 25 anni su tutto il territorio Italiano ed in particolare in Lombardia.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceSao Paulo, BrazilHQ checked Sep 29, 20261-1016 contacts →

Indirect evidence

“A Fiscon & Prosper Associados foi criado a partir da fusão dos escritórios Fiscon Consultoria Tributária e Prosper Consultoria Empresarial.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 584 union consulting firms worldwide

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Union consulting firms worldwide at a glance

As of Sep 29, 2026
22.9%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · Paris
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
416
11-50
148
51-200
13
201-500
5

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 union consulting firms, 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 union consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “union consulting firms”. 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 union consulting firms), 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 union consulting firms, 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, 830 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 29, 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.

Union consulting firms by location

4 lists · largest first

Every Union consulting firms 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 union consulting firms, 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 union consulting firms are there worldwide?

RevenueBase identified 584 union consulting firms 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?

Demarco, headquartered in Belo Horizonte, tops this list with the largest team on record.

Which country has the most union consulting firms?

Italy leads with 137 companies, followed by the United States (87) and Canada (31). Every union consulting firms list by country and city is linked on this page.

Which city has the most union consulting firms?

Paris leads with 14 headquartered companies, followed by Sao Paulo (9) and Milano (8).

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 830 verified decision-maker contacts tracked across these 584 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 29, 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.