Company lists · Data refreshed September 2026

Top 25 Martech integration companies worldwide

Name: Martech integration companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 11,008 companies tracked

RevenueBase identified 11,008 martech integration companies worldwide as of September 2026 and tracks 157,099 professional contacts across them, including 47,176 with verified work emails. The United States is the largest market and London the largest hub.

This list covers martech integration companies 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 martech integration companies 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

11,008Companies

157,099Contacts tracked

47,176Verified emails

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The 25 largest martech integration companies worldwide

Ranked by team size

Top 25 of 11,008 martech integration companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to martech integration companies: 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 28, 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 28, 2026
2	MONKS	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
3	Zoominfo	Indirect evidence	Vancouver, WA, United StatesHQ checked Sep 28, 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 28, 2026
4	Xdbs Worldwide	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 28, 2026	1,001-5,000	3,498 contacts →
	Indirect evidence “At XDBS, we primarily work with media agencies, publishers and marketing companies looking to leverage marketing automation and digital marketing capacity and capability to…” Source: RevenueBase Database · checked Sep 28, 2026
5	Klaviyo	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 28, 2026
6	Zeta Global	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 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 28, 2026
7	Credera	Indirect evidence	Addison, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,842 contacts →
	Indirect evidence “Credera empowers the world’s leading brands to navigate the complexities of data, technology, and marketing.” Source: RevenueBase Database · checked Sep 28, 2026
8	Stackadapt	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	1,001-5,000	1,633 contacts →
	Indirect evidence “StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision.” Source: RevenueBase Database · checked Sep 28, 2026
9	Optimizely	Indirect evidence	New York, United StatesHQ checked Sep 28, 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 28, 2026
10	Appsflyer	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,516 contacts →
	Indirect evidence “AppsFlyer is the Modern Marketing Cloud that helps businesses transform complex data into clarity and growth.” Source: RevenueBase Database · checked Sep 28, 2026
11	Grazitti Interactive	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 28, 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 28, 2026
12	Intuit Mailchimp	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,483 contacts →
	Indirect evidence “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Source: RevenueBase Database · checked Sep 28, 2026
13	Verticurl A WPP Company	Indirect evidence	SingaporeHQ checked Sep 28, 2026	1,001-5,000	1,256 contacts →
	Indirect evidence “Verticurl, a division of Ogilvy, was established in 2006 with the mission to be the world’s leading marketing technology services agency for multinational organizations.” Source: RevenueBase Database · checked Sep 28, 2026
14	Centro	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	1,178 contacts →
	Indirect evidence “Basis Technologies is a global provider of workflow automation, intelligence and programmatic trading software for the marketing enterprise.” Source: RevenueBase Database · checked Sep 28, 2026
15	Demandscience	Indirect evidence	Boston, United StatesHQ checked Sep 28, 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 28, 2026
16	Insider	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 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 28, 2026
17	BORN	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,029 contacts →
	Indirect evidence “Connecting creative, content, and commerce, BORN is an award-winning, global agency that helps brands with digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026
18	SEM	Indirect evidence	Sariyer, TürkiyeHQ checked Sep 28, 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 28, 2026
19	Activecampaign	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	863 contacts →
	Indirect evidence “ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.” Source: RevenueBase Database · checked Sep 28, 2026
20	Marigold	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	201-500	820 contacts →
	Indirect evidence “Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.” Source: RevenueBase Database · checked Sep 28, 2026
21	Vendasta	Indirect evidence	Saskatoon, SK, CanadaHQ checked Sep 28, 2026	501-1,000	771 contacts →
	Indirect evidence “Vendasta is the leading AI software company for customer acquisition and engagement, helping businesses get more customers.” Source: RevenueBase Database · checked Sep 28, 2026
22	SEO Discovery Private Limited	Indirect evidence	Mohali, IndiaHQ checked Sep 28, 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 28, 2026
23	Digitas UK	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	709 contacts →
	Indirect evidence “We are Digitas.” Source: RevenueBase Database · checked Sep 28, 2026
24	simpli.fi	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 28, 2026	501-1,000	680 contacts →
	Indirect evidence “Simpli.fi is a real-world media platform that connects digital intent with physical movement, helping brands reach audiences in the right place, at the right moment, to drive…” Source: RevenueBase Database · checked Sep 28, 2026
25	Movable INK	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	672 contacts →
	Indirect 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 28, 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: martech integration companies. 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 martech integration companies.
Partial evidence: Its own public description names part of martech integration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name martech integration companies. 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 11,008 martech integration companies worldwide

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Martech integration companies worldwide at a glance

As of Sep 28, 2026

30.0%Verified-email coverage

14.3Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

6,887

11-50

3,085

51-200

726

201-500

180

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 martech integration companies, 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 martech integration companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “martech integration companies”. 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 martech integration companies), 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 martech integration companies, 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, 47,176 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.

Martech integration companies by location

86 lists · largest first

Every Martech integration companies 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 martech integration companies, 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 martech integration companies are there worldwide?

RevenueBase identified 11,008 martech integration companies 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 martech integration companies?

The United States leads with 3,043 companies, followed by India (988) and the United Kingdom (582). Every martech integration companies list by country and city is linked on this page.

Which city has the most martech integration companies?

London leads with 286 headquartered companies, followed by New York (159) and Sao Paulo (137).

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 47,176 verified decision-maker contacts tracked across these 11,008 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.

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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.