Company lists · Data refreshed November 2026

Top 25 Consultant firms worldwide

Name: Consultant firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 231,644 companies tracked

RevenueBase identified 231,644 company matches for consultant firms worldwide as of November 2026 and tracks 4,050,192 professional contacts across them, including 1,155,715 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for consultant 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 November 6, 2026. Country and city lists for consultant 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 Nov 6, 2026 How this list was built

231,644Companies

4,050,192Contacts tracked

1,155,715Verified emails

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The 25 largest consultant firms worldwide

Ranked by team size

Top 25 of 231,644 company matches for consultant firms 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	Deloitte	Exact match	United StatesHQ recorded Nov 6, 2026	10001+	511,481 contacts →
	Exact match “Deloitte drives progress.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Infosys	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	10001+	339,644 contacts →
	Exact match “Infosys is a global leader in next-generation digital services and consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Tech Mahindra	Exact match	Pune, IndiaHQ recorded Nov 6, 2026	10001+	145,360 contacts →
	Exact match “Tech Mahindra offers technology consulting and digital solutions to global enterprises across industries, enabling transformative scale at unparalleled speed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	CGI	Exact match	Dallas, TX, ItalyHQ recorded Nov 6, 2026	10001+	91,939 contacts →
	Exact match “Insights you can act on.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Accenture In India	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	10001+	78,030 contacts →
	Exact match “Accenture is a global professional services company with leading capabilities in digital, cloud and security.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Mckinsey & Company	Exact match	n/a	10001+	52,155 contacts →
	Exact match “McKinsey & Company is a global management consulting firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	EXL	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	46,962 contacts →
	Exact match “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Sopra Steria	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	39,122 contacts →
	Exact match “Sopra Steria, a major Tech player in Europe with employees in nearly 30 countries, is recognised for its consulting, digital services and solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Boston Consulting Group BCG	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	10001+	35,975 contacts →
	Exact match “Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Kpmg India	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	10001+	30,313 contacts →
	Exact match “KPMG entities in India are established under the laws of India and are owned and managed (as the case may be) by established Indian professionals.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Bain & Company	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	10001+	23,264 contacts →
	Exact match “Bain & Company is a global consultancy that helps the world’s most ambitious change makers define the future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Autonomo	Exact match	Córdoba, SpainHQ recorded Nov 6, 2026	n/a	22,085 contacts →
	Exact match “Calidad y Gestión es una empresa consultora de ámbito internacional especializada en servicios de asesoría en las siguientes áreas: Calidad Medio Ambiente Responsabilidad social…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	NTT Data North America	Exact match	Plano, United StatesHQ recorded Nov 6, 2026	10001+	21,809 contacts →
	Exact match “NTT DATA, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	NTT Data, INC	Exact match	Tokyo, JapanHQ recorded Nov 6, 2026	10001+	21,602 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Cbre Global Workplace Solutions GWS	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	10001+	19,124 contacts →
	Exact match “From short-term decisions to developing a long-term strategy, CBRE Global Workplace Solutions (GWS) partners with clients to uncover solutions for unique, organizational needs and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Ey-Parthenon	Exact match	London, IsraelHQ recorded Nov 6, 2026	10001+	19,017 contacts →
	Exact match “Our unique combination of transformative strategy, transactions and corporate finance delivers real-world value – solutions that work in practice, not just on paper.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	ZS	Exact match	Evanston, United StatesHQ recorded Nov 6, 2026	10001+	18,455 contacts →
	Exact match “ZS is a management consulting and technology firm that partners with companies to improve life and how we live it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Capgemini Invent	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	16,855 contacts →
	Exact match “Capgemini Invent is the digital innovation, consulting and transformation brand of the Capgemini Group, a global business line that combines market leading expertise in strategy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Korn Ferry	Exact match	Los Angeles, United StatesHQ recorded Nov 6, 2026	10001+	14,835 contacts →
	Exact match “Korn Ferry is a global consulting firm that powers performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Alvarez & Marsal	Exact match	New York, IL, United StatesHQ recorded Nov 6, 2026	10001+	14,637 contacts →
	Exact match “Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Birlasoft	Exact match	Pune, NC, IndiaHQ recorded Nov 6, 2026	10001+	14,500 contacts →
	Exact match “Navigating Change.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	NTT Data Business Solutions	Exact match	Bielefeld, GermanyHQ recorded Nov 6, 2026	10001+	11,594 contacts →
	Exact match “We understand the business of our clients and know what it takes to transform it into the future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Kimley-Horn	Exact match	Raleigh, NC, United StatesHQ recorded Nov 6, 2026	5,001-10,000	11,227 contacts →
	Exact match “Kimley-Horn is one of the nation’s premier planning and design consulting firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Accenture Brasil	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	10001+	10,564 contacts →
	Exact match “A Accenture é uma empresa líder global de serviços profissionais que ajuda grandes companhias, governos e outras organizações a construir sua essência digital, otimizar suas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Slalom	Exact match	Seattle, BC, United StatesHQ recorded Nov 6, 2026	10001+	10,313 contacts →
	Exact match “Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.” 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 “consultant 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 231,644 consultant firms worldwide

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Consultant firms worldwide at a glance

As of Nov 6, 2026

28.5%Verified-email coverage

17.5Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

159,165

11-50

53,323

51-200

12,899

201-500

2,922

501-1,000

914

1,001-5,000

664

5,001-10,000

142

10001+

212

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 consultant firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “consultant 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 1,155,715 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.

Consultant firms by location

837 lists · largest first

Every Consultant 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 “consultant firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many consultant firms are there worldwide?

RevenueBase identified 231,644 company matches for consultant firms 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?

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

Which country has the most consultant firms?

The United States leads with 42,575 companies, followed by India (13,073) and Brazil (12,969). Every consultant firms list by country and city is linked on this page.

Which city has the most consultant firms?

London leads with 4460 company records, followed by Sao Paulo (3556) and Paris (3187).

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 1,155,715 professional contacts with verified work emails tracked across these 231,644 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.