Company lists · Data refreshed November 2026

Top 25 Advertising strategy consultancies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 51,739 companies tracked

RevenueBase identified 51,739 company matches for advertising strategy consultancies worldwide as of November 2026 and tracks 438,840 professional contacts across them, including 94,333 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for advertising strategy 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 advertising strategy 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

51,739Companies

438,840Contacts tracked

94,333Verified emails

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The 25 largest advertising strategy consultancies worldwide

Ranked by team size

Top 25 of 51,739 company matches for advertising strategy 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	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
2	Mindshare	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	5,738 contacts →
	Exact match “Mindshare is a media services brand that accelerates Good Growth for its clients in the age of transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Zenith	Exact match	London, IL, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	4,405 contacts →
	Exact match “Zenith is the ROI Agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	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
5	Essencemediacom	Exact match	London, United KingdomHQ recorded Nov 6, 2026	10001+	2,966 contacts →
	Exact match “We discover the breakthroughs that brands need to win.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Mccann	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	2,939 contacts →
	Exact match “We build enduring brands that move people and markets through the radical creativity of Truth Well Told™.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	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
8	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
9	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
10	Almacén	Exact match	Olivos, ArgentinaHQ recorded Nov 6, 2026	n/a	2,401 contacts →
	Exact match “Agencia de Publicidad fundada en 2003 por Daniel Onorato y Claudio Lucini.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Wieden Kennedy	Exact match	Portland, OR, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,752 contacts →
	Exact match “Wieden+Kennedy is an independent, global creative company that has built and transformed some of the world’s most well-known, exciting brands for over forty years.” 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	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
14	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
15	Brainlabs	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,066 contacts →
	Exact match “Brainlabs is an independent, AI-native media agency built to grow client revenue and prove the impact of every dollar spent on media.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	MMA Marketing Management Analytics	Exact match	Norwalk, NY, United StatesHQ recorded Nov 6, 2026	201-500	1,045 contacts →
	Exact match “Ipsos MMA is committed to enabling our clients to achieve significant brand and marketplace advantages by synergistically leveraging unified marketing & commercial measurement and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	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
18	CPM UK	Exact match	Thame, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	905 contacts →
	Exact match “CPM is an international.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Laboratory	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	n/a	794 contacts →
	Exact match “We develop strategic, creative solutions that aren’t afraid of challenging tradition, because the way we see it – great marketing shouldn’t have to feel like marketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	DONER	Exact match	Southfield, MI, United StatesHQ recorded Nov 6, 2026	501-1,000	748 contacts →
	Exact match “Doner unlocks all the tools of Modern marketing to build lasting connections with every day, Main Street consumers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Vertis Communications	Exact match	Sussex, WI, United StatesHQ recorded Nov 6, 2026	10001+	710 contacts →
	Exact match “Vertis Communications was acquired by Quad/Graphics in January 2013.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Prophet	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	696 contacts →
	Exact match “Prophet is the Uncommon Growth Company-accelerating impact for business and marketing leaders through consulting, experience, and creative services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	BASES	Exact match	Hamburg, United StatesHQ recorded Nov 6, 2026	10001+	654 contacts →
	Exact match “NIQ BASES is Success, Elevated.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Ebiquity PLC	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	651 contacts →
	Exact match “Ebiquity is the independent authority in Marketing Effectiveness.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Betc Havas	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	501-1,000	651 contacts →
	Exact match “A BETC foi fundada em Paris em 1994 e segue sendo reconhecida como uma das agências mais criativas e premiadas do mundo.” 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 “advertising strategy 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 51,739 advertising strategy consultancies worldwide

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Advertising strategy consultancies worldwide at a glance

As of Nov 6, 2026

21.5%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

35,146

11-50

13,628

51-200

2,120

201-500

458

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 advertising strategy consultancies are linked below.
What qualifies: Company records worldwide whose business descriptions match “advertising strategy 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 94,333 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.

Advertising strategy consultancies by location

252 lists · largest first

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

How many advertising strategy consultancies are there worldwide?

RevenueBase identified 51,739 company matches for advertising strategy 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?

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

Which country has the most advertising strategy consultancies?

The United States leads with 8,793 companies, followed by India (3,718) and Brazil (2,881). Every advertising strategy consultancies list by country and city is linked on this page.

Which city has the most advertising strategy consultancies?

London leads with 1134 company records, followed by New York (750) and Sao Paulo (682).

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 94,333 professional contacts with verified work emails tracked across these 51,739 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.