Company lists · Data refreshed September 2026

Top 25 Personalization agencies worldwide

Name: Personalization agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 29,047 companies tracked

RevenueBase identified 29,047 personalization agencies worldwide as of September 2026 and tracks 245,266 professional contacts across them, including 63,315 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers personalization agencies 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 20, 2026. Country and city lists for personalization agencies 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 20, 2026 86% judged on-target in blind review

29,047Companies

245,266Contacts tracked

63,315Verified emails

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

The 25 largest personalization agencies worldwide

Ranked by team size

Top 25 of 29,047 personalization agencies worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to personalization agencies: 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	Indirect evidence	Irving, TX, United StatesHQ checked Sep 20, 2026	5,001-10,000	9,953 contacts →
	Indirect 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 20, 2026
2	MONKS	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	5,001-10,000	6,237 contacts →
	Indirect 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 20, 2026
3	Merkle	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 20, 2026	10001+	4,731 contacts →
	Indirect evidence “Merkle, a dentsu company, powers the experience economy.” Source: RevenueBase Database · checked Sep 20, 2026
4	Acxiom	Indirect evidence	Conway, AR, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,241 contacts →
	Indirect evidence “Acxiom puts data to work, solving complex challenges for the world’s leading brands and agencies.” Source: RevenueBase Database · checked Sep 20, 2026
5	Kinesso	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	5,001-10,000	2,860 contacts →
	Indirect 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 20, 2026
6	Zeta Global	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,595 contacts →
	Indirect evidence “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Source: RevenueBase Database · checked Sep 20, 2026
7	Sitecore	Indirect evidence	Manchester, NH, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,727 contacts →
	Indirect evidence “Sitecore creates digital experiences so powerful they connect the world.” Source: RevenueBase Database · checked Sep 20, 2026
8	Optimizely	Indirect evidence	New York, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,584 contacts →
	Indirect evidence “Optimizely is the AI platform for marketing, built for the experience-makers who shape how brands show up in the world.” Source: RevenueBase Database · checked Sep 20, 2026
9	Hearts & Science	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,359 contacts →
	Indirect evidence “Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth.” Source: RevenueBase Database · checked Sep 20, 2026
10	Bloomreach	Strong evidence	Mountain View, CA, United StatesHQ checked Sep 20, 2026	501-1,000	1,146 contacts →
	Strong evidence “Bloomreach personalizes the customer experience for more than 1,400 global brands through Loomi, its agentic personalization platform.” Source: RevenueBase Database · checked Sep 20, 2026
11	Dialog Direct	Indirect evidence	Highland Park, MI, United StatesHQ checked Sep 20, 2026	10001+	1,138 contacts →
	Indirect evidence “Dialog Direct helps brands manage and personalize their multichannel, multi-touch customer journeys using data-driven marketing and customer engagement solutions.” Source: RevenueBase Database · checked Sep 20, 2026
12	Insider	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 20, 2026	1,001-5,000	1,036 contacts →
	Indirect evidence “Insider-one platform for individualized, cross-channel experiences-enables enterprise marketers to connect customer data across channels and systems, predict their future behavior…” Source: RevenueBase Database · checked Sep 20, 2026
13	FBIZ	Indirect evidence	São Paulo, BrazilHQ checked Sep 20, 2026	201-500	1,010 contacts →
	Indirect evidence “A MAIORIA DOS MANIFESTOS DE AGÊNCIA FALA SOBRE O QUE SE ACREDITA.” Source: RevenueBase Database · checked Sep 20, 2026
14	Contentful	Indirect evidence	Berlin, CA, GermanyHQ checked Sep 20, 2026	501-1,000	962 contacts →
	Indirect evidence “The leading digital experience platform helping you to meet your growing demand for engaging, personalized content at scale.” Source: RevenueBase Database · checked Sep 20, 2026
15	Astound Digital	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	1,001-5,000	936 contacts →
	Indirect evidence “At Astound Digital, we help brands build smarter, connected digital experiences.” Source: RevenueBase Database · checked Sep 20, 2026
16	Majorel Africa	Indirect evidence	Casablanca, MoroccoHQ checked Sep 20, 2026	10001+	910 contacts →
	Indirect evidence “Nous sommes Majorel.” Source: RevenueBase Database · checked Sep 20, 2026
17	SEM	Indirect evidence	Sariyer, TürkiyeHQ checked Sep 20, 2026	n/a	883 contacts →
	Indirect evidence “SEM is a global new generation consumer marketing and technologies brand where we combine growth consultancy, advanced analytics, digital marketing and technology services under…” Source: RevenueBase Database · checked Sep 20, 2026
18	IVE Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	1,001-5,000	860 contacts →
	Indirect evidence “IVE Group is Australia’s largest diversified marketing company.” Source: RevenueBase Database · checked Sep 20, 2026
19	Onemagnify	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 20, 2026	501-1,000	824 contacts →
	Indirect evidence “At OneMagnify, we help transformational brands turn insight into action.” Source: RevenueBase Database · checked Sep 20, 2026
20	SEO Discovery Private Limited	Indirect evidence	Mohali, IndiaHQ checked Sep 20, 2026	201-500	755 contacts →
	Indirect evidence “SEO Discovery is a global leader in next-generation digital marketing services, solutions, and consulting.” Source: RevenueBase Database · checked Sep 20, 2026
21	Team ONE	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	201-500	698 contacts →
	Indirect evidence “Team One was founded with one philosophical focus: to construct brands of elevated aspiration and worth by attracting affluent consumers like never before.” Source: RevenueBase Database · checked Sep 20, 2026
22	Movable INK	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	672 contacts →
	Strong evidence “Movable Ink helps marketers create more relevant customer experiences across email, mobile, and web through data activation, AI-powered decisioning, and personalization at scale.” Source: RevenueBase Database · checked Sep 20, 2026
23	JPL	Indirect evidence	Harrisburg, PA, United StatesHQ checked Sep 20, 2026	n/a	609 contacts →
	Indirect evidence “JPL is a full-service agency dedicated to helping clients achieve more.” Source: RevenueBase Database · checked Sep 20, 2026
24	Vertis Communications	Indirect evidence	Sussex, WI, United StatesHQ checked Sep 20, 2026	10001+	605 contacts →
	Indirect evidence “Vertis Communications was acquired by Quad/Graphics in January 2013.” Source: RevenueBase Database · checked Sep 20, 2026
25	OGURY	Indirect evidence	London, FranceHQ checked Sep 20, 2026	501-1,000	595 contacts →
	Indirect evidence “Ogury is a global adtech company powered by Persona Intelligence, its proprietary technology that enables brands and agencies to activate consistent persona-based strategies…” Source: RevenueBase Database · checked Sep 20, 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: personalization agencies. 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 personalization agencies.
Partial evidence: Its own public description names part of personalization agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name personalization agencies. 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 29,047 personalization agencies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 63,315 reachable decision-makers.

Free signup · no credit card

View the full list →

Personalization agencies worldwide at a glance

As of Sep 20, 2026

25.8%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

20,615

11-50

6,929

51-200

1,080

201-500

249

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among personalization agencies, 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 personalization agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “personalization agencies”. 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 personalization agencies), 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 personalization agencies, 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, 63,315 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 20, 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.

Personalization agencies by location

115 lists · largest first

Every Personalization 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 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 personalization agencies, 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 personalization agencies are there worldwide?

RevenueBase identified 29,047 personalization agencies 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 personalization agencies?

The United States leads with 5,287 companies, followed by Brazil (2,153) and India (2,027). Every personalization agencies list by country and city is linked on this page.

Which city has the most personalization agencies?

Sao Paulo leads with 600 headquartered companies, followed by London (557) and New York (328).

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 63,315 verified decision-maker contacts tracked across these 29,047 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 29,047 personalization 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 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.