Company lists · Data refreshed November 2026

Top 25 Organizational communication consultants worldwide

Name: Organizational communication consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 26,126 companies tracked

RevenueBase identified 26,126 company matches for organizational communication consultants worldwide as of November 2026 and tracks 155,586 professional contacts across them, including 36,408 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for organizational communication consultants 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 November 6, 2026. Country and city lists for organizational communication consultants 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

26,126Companies

155,586Contacts tracked

36,408Verified emails

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The 25 largest organizational communication consultants worldwide

Ranked by team size

Top 25 of 26,126 company matches for organizational communication consultants worldwide, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Diversified	Exact match	Plano, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,744 contacts →
	Exact match “At Diversified, we leverage the best in technology and ongoing advisory services to transform businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Improfit	Exact match	Montevideo, UruguayHQ recorded Nov 6, 2026	n/a	1,851 contacts →
	Exact match “Improfit es una agencia de comunicación corporativa y organizacional fundada en en Montevideo, Uruguay.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Ruder Finn	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	942 contacts →
	Exact match “Ruder Finn is one of the world’s largest global independent integrated marketing and communications agencies, leading at the intersection of technology, human creativity, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Zeno Group	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	930 contacts →
	Exact match “Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Ketchum	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	794 contacts →
	Exact match “We are Ketchum, a global communications consultancy fueled by empathy and intelligence – progress at work for innovation, our employees and our clients since 1923.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Porter Novelli	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	784 contacts →
	Exact match “Porter Novelli is the strategic communications company, fueled by innovation, empowering clients to do business better in an ever-changing world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	ICR	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	201-500	773 contacts →
	Exact match “ICR is a strategic communications and advisory firm that helps management teams align how they communicate with how markets think.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Norsys	Exact match	Ennevelin, FranceHQ recorded Nov 6, 2026	501-1,000	518 contacts →
	Exact match “La vision du groupe norsys : développer une performance globale de l’entreprise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	JKL	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	51-200	508 contacts →
	Exact match “JKL is now Kekst CNC Stockholm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Demarco	Exact match	Belo Horizonte, BrazilHQ recorded Nov 6, 2026	201-500	490 contacts →
	Exact match “Since 2004, we have helped companies solve their challenges in People, Management, Security and Trade Union Relations, delivering world-class results.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Sodali & CO	Exact match	New York, United StatesHQ recorded Nov 6, 2026	501-1,000	452 contacts →
	Exact match “Sodali & Co advises corporate clients worldwide as they navigate the complex dynamic of shareholder and stakeholder interests.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Emperor	Exact match	Aldgate, United KingdomHQ recorded Nov 6, 2026	201-500	445 contacts →
	Exact match “Emperor is one of the UK's leading employee-owned creative communications agencies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Q5	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	382 contacts →
	Exact match “Q5 is a global, award-winning management consultancy focused on building healthy, high-performing organisations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	WMH Project	Exact match	Courbevoie, FranceHQ recorded Nov 6, 2026	201-500	350 contacts →
	Exact match “WMH Project est un des groupes de communication hors média leaders en France et en Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Nail Communications	Exact match	Providence, RI, United StatesHQ recorded Nov 6, 2026	n/a	348 contacts →
	Exact match “Nail Where every brand finds its fascinating.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Miltton	Exact match	Helsinki, FinlandHQ recorded Nov 6, 2026	201-500	286 contacts →
	Exact match “We are an explorative, dynamic and constantly curious consulting group, equipped to offer insight and inspiration to our clients in a changing world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Kreab Worldwide	Exact match	Norrmalm, SwedenHQ recorded Nov 6, 2026	501-1,000	247 contacts →
	Exact match “With 50 years of experience in strategic communications, we are proud to say that we have played an integral part in shaping the business landscape as we know it today.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Richard Attias & Associates	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	51-200	241 contacts →
	Exact match “OUR VISION: To empower governments, corporations and civil society to lead, inspire, and drive impact on a global scale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Tinkle	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	201-500	241 contacts →
	Exact match “Expertos en comunicación cualitativa supra-especializada en corporativo, financiero, de marca, de reputación, de situaciones especiales, de ESG y workplace culture.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	LPM Comunicação	Exact match	Lisbon, PortugalHQ recorded Nov 6, 2026	51-200	240 contacts →
	Exact match “LPM is the leading Communication and Public Relations consultancy in Portugal.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Moshi Moshi	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	51-200	239 contacts →
	Exact match “We are not just an ad agency or a creative agency, we are a Communication Company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	SEC Newgate Italia	Exact match	Milan, ItalyHQ recorded Nov 6, 2026	51-200	234 contacts →
	Exact match “Al cuore di ogni organizzazione ci sono le sue relazioni: collaboratori, clienti, filiera, territorio, istituzioni… Perché sono gli "altri" i terminali del suo agire e i…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	LÁ NA Firma	Exact match	Barcelona, SpainHQ recorded Nov 6, 2026	n/a	222 contacts →
	Exact match “Prazer, somos o LÁ NA FIRMA!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Bastion	Exact match	Laguna Hills, CA, AustraliaHQ recorded Nov 6, 2026	201-500	221 contacts →
	Exact match “Founded in 2009, we are Australasia’s largest independent agency, with an ambition to achieve the same feat in the USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Grupo IOE	Exact match	Murcia, SpainHQ recorded Nov 6, 2026	51-200	220 contacts →
	Exact match “Consultora Integral de Formación, GRUPO IOE es un compacto conjunto de empresas que estudian, diseñan, organizan y ejecutan acciones de formación para trabajadores en activo de…” Recorded in the RevenueBase company graph · Nov 6, 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 “organizational communication consultants”. 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 26,126 organizational communication consultants worldwide

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Organizational communication consultants worldwide at a glance

As of Nov 6, 2026

23.4%Verified-email coverage

6.0Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · Paris

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

21,671

11-50

3,763

51-200

458

201-500

501-1,000

1,001-5,000

10001+

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 organizational communication consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “organizational communication consultants” 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 36,408 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.

Organizational communication consultants by location

146 lists · largest first

Every Organizational communication consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “organizational communication consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many organizational communication consultants are there worldwide?

RevenueBase identified 26,126 company matches for organizational communication consultants worldwide 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?

Diversified tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most organizational communication consultants?

The United States leads with 4,649 companies, followed by France (1,961) and Brazil (1,408). Every organizational communication consultants list by country and city is linked on this page.

Which city has the most organizational communication consultants?

Paris leads with 534 company records, followed by London (524) and Sao Paulo (467).

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 36,408 professional contacts with verified work emails tracked across these 26,126 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.