Company lists · Data refreshed September 2026

Top 25 Marketing technology consulting firms worldwide

Name: Marketing technology consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 54,853 companies tracked

RevenueBase identified 54,853 marketing technology consulting firms worldwide as of September 2026 and tracks 426,944 professional contacts across them, including 124,490 with verified work emails and 76,951 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers marketing technology consulting firms 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 5, 2026. Country and city lists for marketing technology consulting firms 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 5, 2026 86% judged on-target in blind review

54,853Companies

426,944Contacts tracked

124,490Verified emails

76,951Mobile numbers

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The 25 largest marketing technology consulting firms worldwide

Ranked by team size

Top 25 of 54,853 marketing technology consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to marketing technology consulting firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Epsilon	Partial evidence	Irving, TX, United StatesHQ checked Sep 5, 2026	5,001-10,000	9,953 contacts →
	Partial evidence “Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.” Source: RevenueBase Database · checked Sep 5, 2026
2	MONKS	Strong evidence	London, United KingdomHQ checked Sep 5, 2026	5,001-10,000	6,237 contacts →
	Strong evidence “Monks combines an extraordinary range of global marketing and technology services to accelerate business possibilities and redefine how brands and businesses interact with the…” Source: RevenueBase Database · checked Sep 5, 2026
3	V4 Company	Partial evidence	Campinas, BrazilHQ checked Sep 5, 2026	1,001-5,000	5,079 contacts →
	Partial evidence “Somos uma assessoria de marketing focada em construir e otimizar o processo de vendas através da internet conectando pessoas que geram resultados com empresas que buscam vender…” Source: RevenueBase Database · checked Sep 5, 2026
4	Zoominfo	Indirect evidence	Vancouver, WA, United StatesHQ checked Sep 5, 2026	1,001-5,000	4,029 contacts →
	Indirect evidence “ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.” Source: RevenueBase Database · checked Sep 5, 2026
5	DEPT	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 5, 2026	1,001-5,000	3,702 contacts →
	Indirect evidence “DEPT® is a Growth Invention company built to help the world’s most ambitious brands grow faster.” Source: RevenueBase Database · checked Sep 5, 2026
6	Kinesso	Strong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	5,001-10,000	2,860 contacts →
	Strong evidence “KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.” Source: RevenueBase Database · checked Sep 5, 2026
7	Klaviyo	Indirect evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 5, 2026
8	HSO	Indirect evidence	Amsterdam, JapanHQ checked Sep 5, 2026	1,001-5,000	2,600 contacts →
	Indirect evidence “We help companies modernize business operations, adopt intelligent automation, deliver real-time performance insights and connect the enterprise – accelerating the impact of…” Source: RevenueBase Database · checked Sep 5, 2026
9	Zeta Global	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,595 contacts →
	Partial evidence “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Source: RevenueBase Database · checked Sep 5, 2026
10	Qintess	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	1,001-5,000	2,347 contacts →
	Indirect evidence “Experts in digital acceleration and business transformation.” Source: RevenueBase Database · checked Sep 5, 2026
11	Keyrus	Indirect evidence	Levallois-perret, FranceHQ checked Sep 5, 2026	1,001-5,000	1,964 contacts →
	Indirect evidence “At Keyrus, we help organizations move from experimental AI to industrialized AI, from isolated agents to orchestrated systems, and from insight to execution.” Source: RevenueBase Database · checked Sep 5, 2026
12	Credera	Strong evidence	Addison, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,842 contacts →
	Strong evidence “Credera empowers the world’s leading brands to navigate the complexities of data, technology, and marketing.” Source: RevenueBase Database · checked Sep 5, 2026
13	Caci LTD	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,663 contacts →
	Partial evidence “CACI offers an unrivalled range of data, marketing and IT solutions to a wide range of industries across both the public and private sectors.” Source: RevenueBase Database · checked Sep 5, 2026
14	MCA	Strong evidence	Westport, CT, United StatesHQ checked Sep 5, 2026	n/a	1,650 contacts →
	Strong evidence “MCAworks is a strategic marketing consulting firm passionately dedicated to helping our clients accelerate and sustain business growth.” Source: RevenueBase Database · checked Sep 5, 2026
15	Stackadapt	Partial evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	1,001-5,000	1,633 contacts →
	Partial evidence “StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision.” Source: RevenueBase Database · checked Sep 5, 2026
16	Power Digital Marketing	Strong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	501-1,000	1,570 contacts →
	Strong evidence “Power Digital is a growth marketing firm fueled by technology and driven by a talented team of consultative marketers, creatives, analysts and technologists.” Source: RevenueBase Database · checked Sep 5, 2026
17	Localiq	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,534 contacts →
	Partial evidence “Grow your business with digital marketing powered by AI and local expertise.” Source: RevenueBase Database · checked Sep 5, 2026
18	Grazitti Interactive	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,506 contacts →
	Indirect evidence “Grazitti Interactive is a digital innovation leader with offices in India, USA, Australia, and Singapore.” Source: RevenueBase Database · checked Sep 5, 2026
19	Solita	Indirect evidence	Tampere, FinlandHQ checked Sep 5, 2026	1,001-5,000	1,495 contacts →
	Indirect evidence “We create impact that lasts by combining tech, data and human insight.” Source: RevenueBase Database · checked Sep 5, 2026
20	Intuit Mailchimp	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,483 contacts →
	Partial evidence “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Source: RevenueBase Database · checked Sep 5, 2026
21	Practia Global	Indirect evidence	Caba, IndiaHQ checked Sep 5, 2026	1,001-5,000	1,180 contacts →
	Indirect evidence “Somos Practia, Una empresa Publicis Sapient Más de 30 años impulsando la transformación tecnológica en LATAM, hoy potenciados por la visión global de Publicis Sapient.” Source: RevenueBase Database · checked Sep 5, 2026
22	Data Axle	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,088 contacts →
	Indirect evidence “Data Axle helps clients create a foundation of clean data, find new leads, develop winning strategies, design beautiful campaigns, and can handle all day-to-day execution needs” Source: RevenueBase Database · checked Sep 5, 2026
23	Demandscience	Indirect evidence	Boston, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,087 contacts →
	Indirect evidence “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Source: RevenueBase Database · checked Sep 5, 2026
24	Merkle Dach	Partial evidence	Geneva, SwitzerlandHQ checked Sep 5, 2026	10001+	1,058 contacts →
	Partial evidence “Merkle (a dentsu company) is a global professional services and consulting company specialising in data-driven experience and business transformation, combining strategy, data…” Source: RevenueBase Database · checked Sep 5, 2026
25	2x	Partial evidence	Malvern, PA, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,046 contacts →
	Partial evidence “2X is the global leader in B2B marketing-as-a-service (MaaS), a subscription-based alternative to traditional B2B marketing delivery models.” Source: RevenueBase Database · checked Sep 5, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: marketing technology consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names marketing technology consulting firms.
Partial evidence: Its own public description names part of marketing technology consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marketing technology consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 54,853 marketing technology consulting firms worldwide

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Marketing technology consulting firms worldwide at a glance

As of Sep 5, 2026

29.2%Verified-email coverage

18.0%Mobile-number coverage

7.8Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

41,750

11-50

10,649

51-200

1,792

201-500

363

501-1,000

107

1,001-5,000

5,001-10,000

10001+

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 technology consulting firms, 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: 39 countries, largest first: the United States, the United Kingdom, Brazil, Canada, Australia, Germany, Spain, France, the Netherlands, Italy and 29 more. Country and city lists for marketing technology consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “marketing technology consulting firms”. 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 technology consulting firms), 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 technology consulting firms, 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, 124,490 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 5, 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 technology consulting firms by location

260 lists · largest first

Every Marketing technology consulting firms 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 technology consulting firms, 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 technology consulting firms are there worldwide?

RevenueBase identified 54,853 marketing technology consulting firms 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?

Epsilon, headquartered in Irving, tops this list with the largest team on record.

Which country has the most marketing technology consulting firms?

The United States leads with 22,585 companies, followed by the United Kingdom (5,149) and Brazil (4,884). Every marketing technology consulting firms list by country and city is linked on this page.

Which city has the most marketing technology consulting firms?

London leads with 1779 headquartered companies, followed by Sao Paulo (1150) and New York (978).

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 124,490 verified decision-maker contacts tracked across these 54,853 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 5, 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 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.