Company lists · Data refreshed September 2026

Top 25 Marketing audit consultants worldwide

RevenueBase identified 4,635 marketing audit consultants worldwide as of September 2026 and tracks 42,826 professional contacts across them, including 3,229 with verified work emails. The United States is the largest market and London the largest hub.

This list covers marketing audit consultants worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for marketing audit consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
4,635Companies
42,826Contacts tracked
3,229Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest marketing audit consultants worldwide

Ranked by team size
Top 25 of 4,635 marketing audit consultants worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marketing audit consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBrazilHQ checked Sep 28, 2026n/a26,862 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceMumbai, IndiaHQ checked Sep 28, 202651-200240 contacts →

Indirect evidence

“Mercadeo strategies are embedded in a sound foundation of proven, time tested business fundamentals, a deep understanding of different market dynamics and intimate knowledge of…”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceLeicester, United KingdomHQ checked Sep 28, 2026201-500210 contacts →

Partial evidence

“Welcome to Go Inspire - Your Marketing Performance Partner!”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceBrentwood, TN, United StatesHQ checked Sep 28, 202611-50118 contacts →

Indirect evidence

“As a Google Premier and Facebook Agency Partner, LSM drives revenue growth for multi-unit businesses through scalable websites, lead generating advertising campaigns…”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSt. Louis, MO, United StatesHQ checked Sep 28, 202651-200114 contacts →

Indirect evidence

“Amplified Digital Agency, LLC was born from a desire to help businesses establish a robust digital presence.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceCharleston, SC, United StatesHQ checked Sep 28, 202651-200110 contacts →

Partial evidence

“Brandon is a full-force marketing agency engineered to outsmart, outperform, and out-create the competition.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceNew Delhi, IndiaHQ checked Sep 28, 202611-50110 contacts →

Partial evidence

“Marketing services company specializing in marketing strategy development and business process change.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceShanghai, ChinaHQ checked Sep 28, 2026201-500107 contacts →

Partial evidence

“Founded in 2007 as an insight-driven marketing consulting firm, Illuminera, an IQVIA business, has evolved into a premier data-empowered marketing consulting and solutions group…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceFarmington Hills, MI, United StatesHQ checked Sep 28, 202651-200106 contacts →

Indirect evidence

“In April of 2022, we were acquired by Fusion92.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidencePittsburgh, PA, United StatesHQ checked Sep 28, 202611-5089 contacts →

Partial evidence

“Direct Online Marketing (DOM) is a digital marketing agency and Top 1% Premier Google Partner that has been helping businesses grow confidently online since 2006.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceKentfield, CA, United StatesHQ checked Sep 28, 202651-20075 contacts →

Indirect evidence

“Cro Metrics is your trusted partner for all things growth.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceBerkshire, United KingdomHQ checked Sep 28, 202611-5075 contacts →

Indirect evidence

“Century Media360 will help you measure, optimize and enhance your ROI then association with us is your ultimate destination.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidencePune, IndiaHQ checked Sep 28, 202651-20072 contacts →

Indirect evidence

“The growth of a business relies heavily on identifying the gaps and leveraging on those opportunities in the industry.”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceSao Paulo, BrazilHQ checked Sep 28, 202651-20070 contacts →

Strong evidence

“WeSpeakData US Aunica is a marketing consultancy specialized in innovations and data analysis, offering Growth, implementation and licensing services in Martech, Adtech, SEO…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceRoma Norte, MexicoHQ checked Sep 28, 202651-20068 contacts →

Partial evidence

“T2O media México es una consultora especializada en Marketing de Resultados.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5055 contacts →

Partial evidence

“FirmDecisions, member of the Ebiquity Group Plc, is the largest independent global marketing auditor.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceNew Delhi, IndiaHQ checked Sep 28, 202611-5055 contacts →

Partial evidence

“Marketing and Development Research Associates (MDRA) is a premier marketing research and consulting organization in India with focus on quantitative and qualitative research.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceNY, United StatesHQ checked Sep 28, 202611-5051 contacts →

Indirect evidence

“Born from academics.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceCampolongo Maggiore, ItalyHQ checked Sep 28, 202651-20050 contacts →

Partial evidence

“Since 2001 we are the first web marketing Italian agency, specialized in Search Marketing.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceSioux Falls, SD, United StatesHQ checked Sep 28, 202611-5049 contacts →

Partial evidence

“Businesses turn to us for help generating leads and sales while also saving time and making the most of marketing dollars.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceRovigo, ItalyHQ checked Sep 28, 202611-5048 contacts →

Partial evidence

“MarketingArena Consulting offre servizi di consulenza web marketing, strategic planning e formazione.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceWarszawa, PolandHQ checked Sep 28, 202611-5048 contacts →

Partial evidence

“W Marketing Online pomagamy firmom zwiększać sprzedaż oraz liczbę wartościowych zapytań dzięki marketingowi opartemu na danych, technologii i automatyzacji.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceDnipro, UkraineHQ checked Sep 28, 202651-20048 contacts →

Partial evidence

“The key product of #ADINDEX is to do client's digital marketing more effective than the competitors' to grow faster than the market for e-commerce and B2B businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceMiami Springs, FL, United StatesHQ checked Sep 28, 202651-20047 contacts →

Partial evidence

“Calev Systems is committed to providing our customers with more value for their marketing investments.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceMclean, VA, United StatesHQ checked Sep 28, 2026n/a43 contacts →

Partial evidence

“Montage Marketing Group, LLC is a minority and woman-owned small business dedicated to fostering and delivering world-class campaigns.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 4,635 marketing audit consultants worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,229 reachable decision-makers.

Free signup · no credit card

View the full list →

Marketing audit consultants worldwide at a glance

As of Sep 28, 2026
7.5%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
3,846
11-50
682
51-200
81
201-500
15
501-1,000
2
1,001-5,000
4
5,001-10,000
1
10001+
1

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among marketing audit consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for marketing audit consultants are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “marketing audit consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names marketing audit consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among marketing audit consultants, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,229 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Marketing audit consultants by location

22 lists · largest first

Every Marketing audit 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names marketing audit consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many marketing audit consultants are there worldwide?

RevenueBase identified 4,635 marketing audit consultants worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Prefeitura Municipal, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most marketing audit consultants?

The United States leads with 1,219 companies, followed by the United Kingdom (343) and India (215). Every marketing audit consultants list by country and city is linked on this page.

Which city has the most marketing audit consultants?

London leads with 80 headquartered companies, followed by Sao Paulo (52) and Dubai (34).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,229 verified decision-maker contacts tracked across these 4,635 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,635 marketing audit consultants worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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 Smart Search, 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.