Company lists · Data refreshed September 2026

Top 25 Thought leadership consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 22,799 companies tracked

RevenueBase identified 22,799 company matches for thought leadership consulting firms worldwide as of September 2026 and tracks 135,558 professional contacts across them, including 39,733 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for thought leadership consulting firms 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 consulting firms 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

22,799Companies

135,558Contacts tracked

39,733Verified emails

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The 25 largest thought leadership consulting firms worldwide

Ranked by team size

Top 25 of 22,799 company matches for thought leadership consulting firms 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	ABC Consultants	Exact match	New Delhi, IndiaHQ recorded Sep 29, 2026	n/a	10,552 contacts →
	Exact match “ABC Consultants is India’s leading executive search and talent advisory firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Accenture Strategy & Consulting	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	5,001-10,000	5,514 contacts →
	Exact match “Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Heidrick & Struggles	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	3,376 contacts →
	Exact match “Heidrick & Struggles is the premier provider of executive search, corporate culture and leadership consulting services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Egon Zehnder	Exact match	Zurich, SwitzerlandHQ recorded Sep 29, 2026	1,001-5,000	3,068 contacts →
	Exact match “Egon Zehnder is the world’s preeminent leadership advisory firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Arthur D. Little	Exact match	Brussels, BelgiumHQ recorded Sep 29, 2026	1,001-5,000	2,186 contacts →
	Exact match “As people, organizations and societies embrace change at pace, its leaders must anticipate, innovate and transform ever faster.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	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
7	Abylsen	Exact match	Paris, FranceHQ recorded Sep 29, 2026	1,001-5,000	1,577 contacts →
	Exact match “In a world that too often follows currents, Abylsen has been opening itself up to new directions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	DDI Development Dimensions International	Exact match	Bridgeville, PA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,540 contacts →
	Exact match “At DDI, we believe a better future starts with better leaders.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Boyden	Exact match	Tarrytown, NY, United StatesHQ recorded Sep 29, 2026	1,001-5,000	939 contacts →
	Exact match “Transforming today’s organisations with tomorrow’s leaders.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Conseil Départemental	Exact match	FranceHQ recorded Sep 29, 2026	n/a	873 contacts →
	Exact match “M&C Consultants est une entreprise spécialisée dans le champ du Conseil en gestion et développement de l'entreprise.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Porter Novelli	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	501-1,000	821 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 · Sep 29, 2026 · View company records in RevenueBase
12	MANTU	Exact match	Chêne-bourg, SwitzerlandHQ recorded Sep 29, 2026	10001+	818 contacts →
	Exact match “Mantu is an independent international consulting player, founded in 2007.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	CGL Consulting Co., LTD	Exact match	Shanghai, ChinaHQ recorded Sep 29, 2026	501-1,000	739 contacts →
	Exact match “Dezhu Group’s core business is international, high-end talent search (CGL).” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	ICR	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	201-500	693 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 · Sep 29, 2026 · View company records in RevenueBase
15	Mercuri Urval	Exact match	Stockholm, SwedenHQ recorded Sep 29, 2026	501-1,000	559 contacts →
	Exact match “MU is a science-based global Leadership Acquisition and Advisory firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Pedersen & Partners	Exact match	Amsterdam, United KingdomHQ recorded Sep 29, 2026	201-500	531 contacts →
	Exact match “Pedersen & Partners is a leading global Executive Search and Leadership Consulting firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Kienbaum	Exact match	Köln, GermanyHQ recorded Sep 29, 2026	501-1,000	515 contacts →
	Exact match “We are a progress company – for people & organisations.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Iresearch Services	Exact match	London, United StatesHQ recorded Sep 29, 2026	201-500	495 contacts →
	Exact match “We get it.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Transearch	Exact match	London, United KingdomHQ recorded Sep 29, 2026	501-1,000	450 contacts →
	Exact match “TRANSEARCH International is a global executive search and leadership consulting organisation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Emperor	Exact match	Aldgate, United KingdomHQ recorded Sep 29, 2026	201-500	415 contacts →
	Exact match “Emperor is one of the UK's leading employee-owned creative communications agencies.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	AMROP	Exact match	Brussels, BelgiumHQ recorded Sep 29, 2026	501-1,000	352 contacts →
	Exact match “Amrop advises the world’s most dynamic, agile organizations on identifying and positioning Leaders For What’s Next - adept at working across borders, in markets around the world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	DKC	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	201-500	349 contacts →
	Exact match “DKC is a full service public relations, marketing and government affairs firm and part of the Acceleration Community of Companies, Based in New York City, and with offices in Los…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Bartle	Exact match	Paris, FranceHQ recorded Sep 29, 2026	201-500	324 contacts →
	Exact match “Bartle supports business transformation at all strategic, tactic and operational levels.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	PGC	Exact match	Uk, United KingdomHQ recorded Sep 29, 2026	n/a	320 contacts →
	Exact match “In 2018 PGC rebranded as Friisberg & Partners International +44 207 062 3603” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Kekst CNC	Exact match	Paris, United StatesHQ recorded Sep 29, 2026	201-500	309 contacts →
	Exact match “Kekst CNC, the international strategic communications consultancy of Publicis Groupe, has pioneered strategic communications to help its clients achieve their most important…” 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 consulting firms”. 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 22,799 thought leadership consulting firms worldwide

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Thought leadership consulting firms worldwide at a glance

As of Sep 29, 2026

29.3%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

3.4%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

19,331

11-50

2,900

51-200

399

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 consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “thought leadership consulting firms” 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 39,733 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 consulting firms by location

116 lists · largest first

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

How many thought leadership consulting firms are there worldwide?

RevenueBase identified 22,799 company matches for thought leadership consulting firms 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?

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

Which country has the most thought leadership consulting firms?

The United States leads with 6,697 companies, followed by the United Kingdom (1,589) and Germany (814). Every thought leadership consulting firms list by country and city is linked on this page.

Which city has the most thought leadership consulting firms?

London leads with 768 company records, followed by New York (415) and Paris (307).

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 39,733 professional contacts with verified work emails tracked across these 22,799 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.