Company lists · Data refreshed September 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 Sep 27, 2026 47,922 companies tracked

RevenueBase identified 47,922 company matches for advertising strategy consultancies worldwide as of September 2026 and tracks 330,539 professional contacts across them, including 68,561 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 September 27, 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 Sep 27, 2026 How this list was built

47,922Companies

330,539Contacts tracked

68,561Verified emails

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The 25 largest advertising strategy consultancies worldwide

Ranked by team size

Top 25 of 47,922 company matches for advertising strategy consultancies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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, FranceHQ recorded Sep 27, 2026	10001+	7,716 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 · Sep 27, 2026 · View company records in RevenueBase
2	Simon-Kucher	Exact match	Bonn, GermanyHQ recorded Sep 27, 2026	1,001-5,000	2,873 contacts →
	Exact match “Simon-Kucher is a global consultancy with more than 2,200 employees in 30+ countries.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Publicis	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,531 contacts →
	Exact match “You can either adapt to change, ignore it or lead it.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Informal	Exact match	GreeceHQ recorded Sep 27, 2026	5,001-10,000	1,802 contacts →
	Exact match “informal is a company based out of Greece.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Wieden Kennedy	Exact match	Portland, OR, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,711 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 · Sep 27, 2026 · View company records in RevenueBase
6	MCA	Exact match	Westport, CT, United StatesHQ recorded Sep 27, 2026	n/a	1,650 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 · Sep 27, 2026 · View company records in RevenueBase
7	Almacén	Exact match	Olivos, ArgentinaHQ recorded Sep 27, 2026	n/a	1,486 contacts →
	Exact match “Agencia de Publicidad fundada en 2003 por Daniel Onorato y Claudio Lucini.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	TBC	Exact match	Baltimore, MD, United StatesHQ recorded Sep 27, 2026	n/a	1,255 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 · Sep 27, 2026 · View company records in RevenueBase
9	Mccann	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	10001+	1,207 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 · Sep 27, 2026 · View company records in RevenueBase
10	Hakuhodo INC	Exact match	Minato-ku, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,168 contacts →
	Exact match “Founded in 1895, Hakuhodo Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Essence	Exact match	San Francisco, CA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	782 contacts →
	Exact match “Formerly Essence, we are now EssenceMediacom.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	DONER	Exact match	Southfield, MI, United StatesHQ recorded Sep 27, 2026	501-1,000	708 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 · Sep 27, 2026 · View company records in RevenueBase
13	Prophet	Exact match	San Francisco, CA, United StatesHQ recorded Sep 27, 2026	501-1,000	661 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 · Sep 27, 2026 · View company records in RevenueBase
14	Betc Havas	Exact match	Sao Paulo, BrazilHQ recorded Sep 27, 2026	501-1,000	600 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 · Sep 27, 2026 · View company records in RevenueBase
15	Stream Companies	Exact match	Malvern, PA, United StatesHQ recorded Sep 27, 2026	501-1,000	572 contacts →
	Exact match “Stream Companies is a full service advertising agency that specializes in launching, positioning, and long term management of brands on full service contracts and a…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Ogilvy South Africa	Exact match	Cape Town, South AfricaHQ recorded Sep 27, 2026	501-1,000	543 contacts →
	Exact match “In 1948, David Ogilvy founded the agency that would become Ogilvy & Mather.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Barkleyokrp	Exact match	Kansas City, MO, United StatesHQ recorded Sep 27, 2026	501-1,000	518 contacts →
	Exact match “BarkleyOKRP is one of the largest independent ad agencies in the U.S, matching scale with soul to help build brands like Burger King, Corona Premier, Metro by T-Mobile, Planet…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Memac Ogilvy	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 27, 2026	501-1,000	504 contacts →
	Exact match “Founded in 1984 as Memac by Eddie Moutran, and today part of the Ogilvy Worldwide network founded by David Ogilvy, Memac Ogilvy is proud to be the most local of international…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Gsd&m	Exact match	Austin, TX, United StatesHQ recorded Sep 27, 2026	501-1,000	488 contacts →
	Exact match “GSD & M is a creatively driven, full-service agency born and raised in Austin, TX.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Martin	Exact match	Richmond, VA, United StatesHQ recorded Sep 27, 2026	201-500	482 contacts →
	Exact match “We are a full-service agency with capabilities in advertising, strategic planning, direct response, digital, data analytics, design and branded content.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	CLEAN	Exact match	Raleigh, NC, United StatesHQ recorded Sep 27, 2026	n/a	414 contacts →
	Exact match “We are CLEAN Advertising and Design, a full-service creative agency with over 28 years of experience delivering ideas that help build brand awareness, engage audiences, and…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Rethink	Exact match	Vancouver, BC, CanadaHQ recorded Sep 27, 2026	201-500	409 contacts →
	Exact match “Rethink is one of the world’s leading independent creative agencies that relentlessly pursues work the world talks about.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Mullenlowe U.S	Exact match	Boston, CA, United StatesHQ recorded Sep 27, 2026	201-500	408 contacts →
	Exact match “We are a creatively driven full-service agency committed to always being a challenger.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	PMH	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 27, 2026	51-200	406 contacts →
	Exact match “An independently owned retail ad agency full of brains, guts, heart, and great taste.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Crispin	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	51-200	405 contacts →
	Exact match “Crispin is the original creative business partner, challenging the industry’s established norms on behalf of our clients to create the most outrageously effective work since 1965.” Recorded in the RevenueBase company graph · Sep 27, 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 47,922 advertising strategy consultancies worldwide

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Advertising strategy consultancies worldwide at a glance

As of Sep 27, 2026

20.7%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

33,439

11-50

12,233

51-200

1,699

201-500

345

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 68,561 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 27, 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

219 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 47,922 company matches for advertising strategy consultancies 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?

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 8,190 companies, followed by India (3,400) and Brazil (2,671). 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 946 company records, followed by Sao Paulo (596) and New York (580).

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 68,561 professional contacts with verified work emails tracked across these 47,922 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 27, 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.