Company lists · Data refreshed November 2026

Top 25 Marketing consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 218,812 companies tracked

RevenueBase identified 218,812 company matches for marketing consultants worldwide as of November 2026 and tracks 1,323,409 professional contacts across them, including 254,154 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for marketing 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 marketing 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

218,812Companies

1,323,409Contacts tracked

254,154Verified emails

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The 25 largest marketing consultants worldwide

Ranked by team size

Top 25 of 218,812 company matches for marketing 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	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	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
3	Accenture Strategy & Consulting	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	7,199 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 · Nov 6, 2026 · View company records in RevenueBase
4	WPP	Exact match	London, FranceHQ recorded Nov 6, 2026	10001+	6,648 contacts →
	Exact match Recorded description not available. 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	DEPT	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	3,470 contacts →
	Exact match “DEPT® is a Growth Invention company built to help the world’s most ambitious brands grow faster.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Monitor Deloitte	Exact match	United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,376 contacts →
	Exact match “To navigate the future with confidence, organizations need to make and act upon the right choices: clear, timely and inspirational choices that deliver growth in a dynamic…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	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
11	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
12	Publicis	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,785 contacts →
	Exact match “You can either adapt to change, ignore it or lead it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	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
14	Horizon Media	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,506 contacts →
	Exact match “Horizon Media is a leader in driving business-based outcomes for marketers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	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
16	Marketizon	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	1,989 contacts →
	Exact match “Marketizon is the leader in developing innovative, multi-channel marketing technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Razorfish	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,912 contacts →
	Exact match “Hi there!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Qintess	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,850 contacts →
	Exact match “Experts in digital acceleration and business transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	FROG	Exact match	San Francisco, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,766 contacts →
	Exact match “frog is the reinvention and experience partner for the eco-digital era.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	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
21	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
22	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
23	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
24	Hakuhodo INC	Exact match	Minato-ku, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,310 contacts →
	Exact match “Founded in 1895, Hakuhodo Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	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

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 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 218,812 marketing consultants worldwide

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Marketing consultants worldwide at a glance

As of Nov 6, 2026

19.2%Verified-email coverage

6.0Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

162,538

11-50

47,525

51-200

6,308

201-500

1,267

501-1,000

287

1,001-5,000

170

5,001-10,000

10001+

108

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 consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “marketing 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 254,154 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 consultants by location

779 lists · largest first

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

How many marketing consultants are there worldwide?

RevenueBase identified 218,812 company matches for marketing 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?

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 consultants?

The United States leads with 46,850 companies, followed by India (18,323) and the United Kingdom (12,345). Every marketing consultants list by country and city is linked on this page.

Which city has the most marketing consultants?

London leads with 4321 company records, followed by Sao Paulo (2770) and New York (2682).

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 254,154 professional contacts with verified work emails tracked across these 218,812 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.