Company lists · Data refreshed September 2026

Top 25 First party data marketing agencies worldwide

Name: First party data marketing agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 6,901 companies tracked

RevenueBase identified 6,901 company matches for first party data marketing agencies worldwide as of September 2026 and tracks 131,689 professional contacts across them, including 44,839 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for first party data marketing agencies 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 28, 2026. Country and city lists for first party data marketing agencies 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 28, 2026 How this list was built

6,901Companies

131,689Contacts tracked

44,839Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest first party data marketing agencies worldwide

Ranked by team size

Top 25 of 6,901 company matches for first party data marketing agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Kantar	Exact match	London, United KingdomHQ recorded Sep 28, 2026	10001+	15,564 contacts →
	Exact match “Kantar is the world’s leading marketing data and analytics business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Epsilon	Exact match	Irving, TX, United StatesHQ recorded Sep 28, 2026	5,001-10,000	9,953 contacts →
	Exact match “Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Dynata	Exact match	Westport, CT, United StatesHQ recorded Sep 28, 2026	5,001-10,000	3,807 contacts →
	Exact match “At Dynata, we deliver the highest quality first-party data to help businesses around the world gain precise insights, activate the right audiences, and confidently measure impact.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Acxiom	Exact match	Conway, AR, United StatesHQ recorded Sep 28, 2026	1,001-5,000	3,241 contacts →
	Exact match “Acxiom puts data to work, solving complex challenges for the world’s leading brands and agencies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Kinesso	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	5,001-10,000	2,860 contacts →
	Exact match “KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Zeta Global	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,595 contacts →
	Exact match “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Caci LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	1,663 contacts →
	Exact match “CACI offers an unrivalled range of data, marketing and IT solutions to a wide range of industries across both the public and private sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Hearts & Science	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,359 contacts →
	Exact match “Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Annalect	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	5,001-10,000	1,327 contacts →
	Exact match “Over a decade ago, Omnicom created Annalect to reimagine the future of marketing, at the crossroads of data, tech, analytics, and AI.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Dialog Direct	Exact match	Highland Park, MI, United StatesHQ recorded Sep 28, 2026	10001+	1,138 contacts →
	Exact match “Dialog Direct helps brands manage and personalize their multichannel, multi-touch customer journeys using data-driven marketing and customer engagement solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Data Axle	Exact match	Dallas, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,088 contacts →
	Exact match “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” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Insider	Exact match	Istanbul, TürkiyeHQ recorded Sep 28, 2026	1,001-5,000	1,036 contacts →
	Exact match “Insider-one platform for individualized, cross-channel experiences-enables enterprise marketers to connect customer data across channels and systems, predict their future behavior…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	SEM	Exact match	Sariyer, TürkiyeHQ recorded Sep 28, 2026	n/a	883 contacts →
	Exact match “SEM is a global new generation consumer marketing and technologies brand where we combine growth consultancy, advanced analytics, digital marketing and technology services under…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Manlitics B2B Ites	Exact match	New York, United StatesHQ recorded Sep 28, 2026	501-1,000	750 contacts →
	Exact match “In an ERA of new and emerging digital mediums, we align our core expertise of today’s ever-changing technology with a clear understanding of traditional marketing methods without…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Anteriad	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	740 contacts →
	Exact match “Data Driven.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Movable INK	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	672 contacts →
	Exact match “Movable Ink helps marketers create more relevant customer experiences across email, mobile, and web through data activation, AI-powered decisioning, and personalization at scale.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Vertis Communications	Exact match	Sussex, WI, United StatesHQ recorded Sep 28, 2026	10001+	605 contacts →
	Exact match “Vertis Communications was acquired by Quad/Graphics in January 2013.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Tealium	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	501-1,000	588 contacts →
	Exact match “Tealium helps companies collect, govern, and enrich their customer data in real-time to power AI initiatives and delight customers in the moments that matter.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Belltech	Exact match	Las Condes, ChileHQ recorded Sep 28, 2026	201-500	579 contacts →
	Exact match “Belltech te ayuda a entender el comportamiento de tus clientes impulsado por una estrategia basada en los datos, para poder entregar experiencias que sean personalizadas…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Analytic Partners	Exact match	Miami, FL, United StatesHQ recorded Sep 28, 2026	501-1,000	558 contacts →
	Exact match “Analytic Partners is the leader in Commercial Analytics.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	ALC	Exact match	Princeton, NJ, United StatesHQ recorded Sep 28, 2026	51-200	539 contacts →
	Exact match “Founded in 1978, ALC has grown to become one of the industry's leading privately-held providers of first-party data, mailer and catalog services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Precis	Exact match	Stockholm, SwedenHQ recorded Sep 28, 2026	201-500	535 contacts →
	Exact match “Precis is a modern, tech-powered digital marketing agency specialising in media buying, analytics, creative, and proprietary technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Wunderkind	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	521 contacts →
	Exact match “Wunderkind is pioneering a new category of AI agentic marketing decisioning, where identity meets AI to drive scalable performance across channel.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Amsive	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	488 contacts →
	Exact match “Amsive is a data-driven performance marketing agency that enhances marketing ROI through innovative customer acquisition and engagement solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	YES Marketing	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	483 contacts →
	Exact match “Yes Marketing focuses on enabling marketers to engage, acquire and retain consumers along each stage of the consumer journey with a brand – from awareness through consideration…” Recorded in the RevenueBase company graph · Sep 28, 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 “first party data marketing agencies”. 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 6,901 first party data marketing agencies worldwide

See the full list, filter by size, metro and specialty, and access 44,839 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

First party data marketing agencies worldwide at a glance

As of Sep 28, 2026

34.0%Verified-email coverage

19.1Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,907

11-50

2,163

51-200

593

201-500

138

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 first party data marketing agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “first party data marketing agencies” 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 44,839 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 28, 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.

First party data marketing agencies by location

52 lists · largest first

Every First party data marketing agencies 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 “first party data marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many first party data marketing agencies are there worldwide?

RevenueBase identified 6,901 company matches for first party data marketing agencies 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?

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

Which country has the most first party data marketing agencies?

The United States leads with 1,993 companies, followed by India (588) and the United Kingdom (408). Every first party data marketing agencies list by country and city is linked on this page.

Which city has the most first party data marketing agencies?

London leads with 176 company records, followed by New York (158) and Sao Paulo (93).

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 44,839 professional contacts with verified work emails tracked across these 6,901 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 6,901 first party data marketing agencies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.