Company lists · Data refreshed November 2026

Top 25 Marketing consultancies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 220,117 companies tracked

RevenueBase identified 220,117 company matches for marketing consultancies worldwide as of November 2026 and tracks 1,248,037 professional contacts across them, including 226,229 with verified work emails. The United States is the largest market and London the largest hub.

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

220,117Companies

1,248,037Contacts tracked

226,229Verified emails

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The 25 largest marketing consultancies worldwide

Ranked by team size

Top 25 of 220,117 company matches for marketing consultancies 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	Prefeitura Municipal	Exact match	BrazilHQ recorded Nov 6, 2026	n/a	29,800 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Idol Image Consulting	Exact match	Kula, HI, TürkiyeHQ recorded Nov 6, 2026	n/a	12,972 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 · Nov 6, 2026 · View company records in RevenueBase
3	Deloitte Digital	Exact match	Usa, CA, FranceHQ recorded Nov 6, 2026	10001+	7,622 contacts →
	Exact match “At Deloitte Digital, we connect brands with the right strategies and tools to create great impact.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	SEO	Exact match	Melbourne, AustraliaHQ recorded Nov 6, 2026	n/a	7,062 contacts →
	Exact match “The way people search is changing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Bank Of The West	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	n/a	5,345 contacts →
	Exact match “We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Strategy	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	5,343 contacts →
	Exact match “From strategy to execution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Mediacom	Exact match	London, NY, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	3,500 contacts →
	Exact match “Hello.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Simon-Kucher	Exact match	Bonn, GermanyHQ recorded Nov 6, 2026	1,001-5,000	3,117 contacts →
	Exact match “Simon-Kucher is a global consultancy with more than 2,200 employees in 30+ countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	GREY	Exact match	New York, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,800 contacts →
	Exact match “Grey’s mission is to create Famously Effective ideas that move people, business, and the world forward-harnessing the power of creativity to solve business problems and deliver…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Omnicom	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	2,762 contacts →
	Exact match “Omnicom is the world’s leading marketing and sales company, built for intelligent growth in the next era.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Credera	Exact match	Addison, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,991 contacts →
	Exact match “Credera empowers the world’s leading brands to navigate the complexities of data, technology, and marketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	MCA	Exact match	Westport, CT, United StatesHQ recorded Nov 6, 2026	n/a	1,709 contacts →
	Exact match “MCAworks is a strategic marketing consulting firm passionately dedicated to helping our clients accelerate and sustain business growth.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Power Digital Marketing	Exact match	San Diego, VA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,635 contacts →
	Exact match “Power Digital is a growth marketing firm fueled by technology and driven by a talented team of consultative marketers, creatives, analysts and technologists.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	LLYC	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	1,001-5,000	1,548 contacts →
	Exact match “Together, we enhance and protect the value of your business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	TBC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	n/a	1,328 contacts →
	Exact match “TBC is an independently owned, full-service branding, advertising and strategic communications agency with headquarters in Baltimore, Maryland, USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Grupo Lucky	Exact match	Lima, PeruHQ recorded Nov 6, 2026	1,001-5,000	1,272 contacts →
	Exact match “En Grupo Lucky llevamos más de treinta años ayudando a empresas líderes a anticiparse al mañana y a tomar las decisiones más relevantes sobre su perfomance en canales comerciales…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	EXL Services LTD	Exact match	n/a	n/a	1,207 contacts →
	Exact match “Established in 1994, we provide a blend of business strategy, marketing services, behavioural change and executive coaching services and techniques to help grow the business of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Porsche Consulting	Exact match	Stuttgart, CA, GermanyHQ recorded Nov 6, 2026	501-1,000	1,082 contacts →
	Exact match “As a leading consultancy for putting strategies into practice, we have a clear mission: we generate competitive advantage on the basis of measurable results.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Quadcubes	Exact match	Kozhikode, IndiaHQ recorded Nov 6, 2026	n/a	1,056 contacts →
	Exact match “We're not that yet another, ordinary marketing agency!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Madison World	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,022 contacts →
	Exact match “Madison World, for the last 36 years has been helping clients solve their marketing challenges and generate sustainable profits.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	SUPER	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	n/a	959 contacts →
	Exact match “Super no es una multinacional, ¡Viva la independencia!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	IVE Group	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	933 contacts →
	Exact match “IVE Group is Australia’s largest diversified marketing company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	SEM	Exact match	Sariyer, TürkiyeHQ recorded Nov 6, 2026	n/a	930 contacts →
	Exact match “SEM is a global new generation consumer marketing and technologies brand where we combine growth consultancy, advanced analytics, digital marketing and technology services under…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	NP Digital	Exact match	San Diego, United StatesHQ recorded Nov 6, 2026	1,001-5,000	897 contacts →
	Exact match “Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Mark UP	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	n/a	864 contacts →
	Exact match “Não é o que fazemos.” 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 “marketing 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 220,117 marketing consultancies worldwide

See the full list, filter by size, metro and specialty, and access 226,229 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marketing consultancies worldwide at a glance

As of Nov 6, 2026

18.1%Verified-email coverage

5.7Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

167,056

11-50

45,238

51-200

5,660

201-500

1,117

501-1,000

250

1,001-5,000

108

5,001-10,000

10001+

101

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 marketing consultancies are linked below.
What qualifies: Company records worldwide whose business descriptions match “marketing 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 226,229 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.

Marketing consultancies by location

748 lists · largest first

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

How many marketing consultancies are there worldwide?

RevenueBase identified 220,117 company matches for marketing consultancies 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?

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

Which country has the most marketing consultancies?

The United States leads with 45,099 companies, followed by India (17,352) and the United Kingdom (13,209). Every marketing consultancies list by country and city is linked on this page.

Which city has the most marketing consultancies?

London leads with 4697 company records, followed by Sao Paulo (2827) and New York (2603).

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 226,229 professional contacts with verified work emails tracked across these 220,117 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.