Company lists · Data refreshed September 2026

Top 25 Thought leadership consultancies worldwide

Name: Thought leadership consultancies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 17,753 companies tracked

RevenueBase identified 17,753 company matches for thought leadership consultancies worldwide as of September 2026 and tracks 67,858 professional contacts across them, including 13,468 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for thought leadership consultancies 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 September 29, 2026. Country and city lists for thought leadership consultancies 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 Sep 29, 2026 How this list was built

17,753Companies

67,858Contacts tracked

13,468Verified emails

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The 25 largest thought leadership consultancies worldwide

Ranked by team size

Top 25 of 17,753 company matches for thought leadership consultancies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	Idol Image Consulting	Exact match	Kula, HI, TürkiyeHQ recorded Sep 29, 2026	n/a	12,976 contacts →
	Exact match “IDOL Image Consulting has developed strategies to help individuals, groups or corporate organizations face today’s challenges and fierce competition.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	FGS Global	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,814 contacts →
	Exact match “FGS Global is the strategic leadership advisory for a complex world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Miltton	Exact match	Helsinki, FinlandHQ recorded Sep 29, 2026	201-500	269 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 · Sep 29, 2026 · View company records in RevenueBase
4	Sheffield Haworth	Exact match	London, United KingdomHQ recorded Sep 29, 2026	201-500	244 contacts →
	Exact match “Sheffield Haworth is a global consultancy founded in 1993.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Medialink	Exact match	Beverly Hills, CA, United StatesHQ recorded Sep 29, 2026	51-200	204 contacts →
	Exact match “MediaLink is the leading consulting firm serving the media and marketing industry’s C-suite.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Hanover Communications	Exact match	London, United KingdomHQ recorded Sep 29, 2026	201-500	177 contacts →
	Exact match “Hanover is an award-winning communications consultancy that advises enterprises, institutions, and individuals on rewiring their strategies for long-term success.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	TACT	Exact match	Québec, QC, CanadaHQ recorded Sep 29, 2026	51-200	175 contacts →
	Exact match “Founded in September 2011, TACT Intelligence-conseil is composed of a group of experienced, professional communicators seeking to create a Québec-owned consulting agency.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Newlink Spain	Exact match	Madrid, SpainHQ recorded Sep 29, 2026	51-200	175 contacts →
	Exact match “Newlink es una consultora internacional con más de 20 años en el sector, con sede en Miami (EE.UU.) y oficinas en España y en numerosos países de Latinoamérica.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Orchestra	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	501-1,000	166 contacts →
	Exact match “Orchestra is a strategic communications and marketing company purpose-built for a world defined by speed, fragmentation and unprecedented transparency.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Signium	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	51-200	156 contacts →
	Exact match “What got us here won’t get us there… Business today is more volatile and unpredictable than ever.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Quadrangle	Exact match	Noida, IndiaHQ recorded Sep 29, 2026	51-200	153 contacts →
	Exact match “Quadrangle, a division of InfoEdge India Ltd, is a trusted talent advisory partner that has been shaping leadership for over 25 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Lansons Team Farner	Exact match	London, United KingdomHQ recorded Sep 29, 2026	51-200	143 contacts →
	Exact match “Organisations and brands turn to us to shape, protect and transform their reputations.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Hager Executive Consulting Gmbh	Exact match	Frankfurt Am Main, GermanyHQ recorded Sep 29, 2026	51-200	137 contacts →
	Exact match “HAGER is the leading global leadership consultancy, empowering leaders to tackle complex challenges with human-centered solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Aiir Consulting	Exact match	Bala Cynwyd, PA, United StatesHQ recorded Sep 29, 2026	51-200	135 contacts →
	Exact match “At AIIR Consulting, we believe leadership is the greatest lever for change.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	The RBL Group	Exact match	Provo, UT, United StatesHQ recorded Sep 29, 2026	51-200	132 contacts →
	Exact match “The RBL Group is a consulting and development firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Modern Executive Solutions	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	51-200	121 contacts →
	Exact match “Modern Executive Solutions helps organizations and leaders shape what’s next.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Eric Salmon & Partners	Exact match	Paris, ItalyHQ recorded Sep 29, 2026	51-200	116 contacts →
	Exact match “Eric Salmon & Partners is a leading leadership and talent consulting firm that specializes in Executive Search, Governance Advisory & Leadership Advisory.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	FDC	Exact match	Cape Town, South AfricaHQ recorded Sep 29, 2026	51-200	115 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Copper Consultancy	Exact match	London, United KingdomHQ recorded Sep 29, 2026	51-200	114 contacts →
	Exact match “At Copper, we combine insight, intelligence and creative communications expertise to deliver measurable impact for our clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Novus Global	Exact match	Marina Del Rey, CA, United StatesHQ recorded Sep 29, 2026	51-200	113 contacts →
	Exact match “Novus Global partners with leaders and organizations to drive meaningful, measurable transformation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Gennesys	Exact match	Goiânia, BrazilHQ recorded Sep 29, 2026	51-200	112 contacts →
	Exact match “A LARGADA DA HISTÓRIA Criado em 1995, o Grupo Gennesys prontamente se destacou no mercado local pelo investimento diferenciado em capital humano e a experiência internacional de…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Sámara	Exact match	Santiago, ChileHQ recorded Sep 29, 2026	11-50	111 contacts →
	Exact match “Sámara es una consultora de comunicaciones que desde sus inicios en 2005, ha buscado contribuir a cargar de sentido las comunicaciones de instituciones, organismos, empresas y…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	We DO Advisory	Exact match	Roma, ItalyHQ recorded Sep 29, 2026	501-1,000	107 contacts →
	Exact match “Designing the next edge of management advisory.#BeTheDifference” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	SNP Communications	Exact match	San Francisco, CA, United StatesHQ recorded Sep 29, 2026	11-50	102 contacts →
	Exact match “We help the world's most interesting companies by making their content clear and delivery memorable.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	IMI International	Exact match	Toronto, ON, CanadaHQ recorded Sep 29, 2026	51-200	97 contacts →
	Exact match “IMI International is an independent marketing consultancy focused on insight driving profit.” Recorded in the RevenueBase company graph · Sep 29, 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 “thought leadership consultancies”. 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 17,753 thought leadership consultancies worldwide

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Thought leadership consultancies worldwide at a glance

As of Sep 29, 2026

19.8%Verified-email coverage

3.8Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

16,119

11-50

1,376

51-200

184

201-500

501-1,000

1,001-5,000

5,001-10,000

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 thought leadership consultancies are linked below.
What qualifies: Company records worldwide whose business descriptions match “thought leadership consultancies” 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 13,468 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 September 29, 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.

Thought leadership consultancies by location

81 lists · largest first

Every Thought leadership consultancies 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 “thought leadership consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many thought leadership consultancies are there worldwide?

RevenueBase identified 17,753 company matches for thought leadership consultancies worldwide as of September 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?

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

Which country has the most thought leadership consultancies?

The United States leads with 5,362 companies, followed by the United Kingdom (1,291) and France (679). Every thought leadership consultancies list by country and city is linked on this page.

Which city has the most thought leadership consultancies?

London leads with 572 company records, followed by New York (335) and Paris (259).

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 13,468 professional contacts with verified work emails tracked across these 17,753 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 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 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.