Company lists · Data refreshed September 2026

Top 25 Martech platform software companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 6,603 companies tracked

RevenueBase identified 6,603 martech platform software companies worldwide as of September 2026 and tracks 141,480 professional contacts across them, including 51,123 with verified work emails. The United States is the largest market and London the largest hub.

This list covers martech platform software 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 platform software 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

6,603Companies

141,480Contacts tracked

51,123Verified emails

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The 25 largest martech platform software companies worldwide

Ranked by team size

Top 25 of 6,603 martech platform software 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 platform software 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	Hubspot	Strong evidence	Cambridge, MA, United StatesHQ checked Sep 28, 2026	5,001-10,000	11,077 contacts →
	Strong evidence “HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Source: RevenueBase Database · checked Sep 28, 2026
2	Epsilon	Partial evidence	Irving, TX, United StatesHQ checked Sep 28, 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 28, 2026
3	HIBU	Indirect evidence	Cedar Rapids, IA, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,426 contacts →
	Indirect evidence “Hibu is a leading provider of technology-driven, integrated digital marketing solutions for America’s local businesses, trusted by tens of thousands of local business owners.” Source: RevenueBase Database · checked Sep 28, 2026
4	Zoominfo	Partial evidence	Vancouver, WA, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,029 contacts →
	Partial 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
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	THRYV	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,412 contacts →
	Partial evidence “Thryv is an AI-powered platform built to help small businesses get found, win customers, and drive repeat sales.” 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	Constant Contact	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,611 contacts →
	Indirect evidence “We deliver for small businesses with powerful tools to simplify and amplify digital marketing.” Source: RevenueBase Database · checked Sep 28, 2026
10	Optimizely	Partial evidence	New York, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,584 contacts →
	Partial 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
11	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
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	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	1,178 contacts →
	Partial 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	Mediaocean	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,050 contacts →
	Indirect evidence “Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Source: RevenueBase Database · checked Sep 28, 2026
17	Insider	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	1,001-5,000	1,036 contacts →
	Partial 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
18	Moloco	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	501-1,000	893 contacts →
	Indirect evidence “Moloco’s mission is to be the scaling engine for the internet economy, applying AI to help businesses of all sizes grow.” Source: RevenueBase Database · checked Sep 28, 2026
19	BASIS	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	891 contacts →
	Partial evidence “Basis is a global provider of media automation and programmatic advertising software and services for enterprises.” Source: RevenueBase Database · checked Sep 28, 2026
20	Activecampaign	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	863 contacts →
	Partial 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
21	Smartly	Indirect evidence	Helsinki, FinlandHQ checked Sep 28, 2026	501-1,000	827 contacts →
	Indirect evidence “Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers.” Source: RevenueBase Database · checked Sep 28, 2026
22	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
23	Vendasta	Partial evidence	Saskatoon, SK, CanadaHQ checked Sep 28, 2026	501-1,000	771 contacts →
	Partial 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
24	Khoros	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	501-1,000	763 contacts →
	Partial evidence “Khoros' award-winning enterprise software makes it easier for complex brands to engage with customers at scale across digital, social, and brand-owned channels.” Source: RevenueBase Database · checked Sep 28, 2026
25	Applovin	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 28, 2026	201-500	733 contacts →
	Indirect evidence “AppLovin helps businesses of any size reach over a billion people who play mobile games every day.” 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 platform software 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 platform software companies.
Partial evidence: Its own public description names part of martech platform software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name martech platform software 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 6,603 martech platform software companies worldwide

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Martech platform software companies worldwide at a glance

As of Sep 28, 2026

36.1%Verified-email coverage

21.4Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,496

11-50

2,106

51-200

702

201-500

176

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 platform software 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 platform software companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “martech platform software 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 platform software 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 platform software 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, 51,123 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 platform software companies by location

54 lists · largest first

Every Martech platform software 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 platform software 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 platform software companies are there worldwide?

RevenueBase identified 6,603 martech platform software 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?

Hubspot, headquartered in Cambridge, tops this list with the largest team on record.

Which country has the most martech platform software companies?

The United States leads with 1,771 companies, followed by India (635) and the United Kingdom (325). Every martech platform software companies list by country and city is linked on this page.

Which city has the most martech platform software companies?

London leads with 169 headquartered companies, followed by New York (156) and San Francisco (82).

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 51,123 verified decision-maker contacts tracked across these 6,603 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.