Company lists · Data refreshed September 2026

Top 25 Customer data platform developers worldwide

Name: Customer data platform developers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 3,813 companies tracked

RevenueBase identified 3,813 customer data platform developers worldwide as of September 2026 and tracks 97,248 professional contacts across them, including 37,946 with verified work emails and 20,912 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers customer data platform developers 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 1, 2026. Country and city lists for customer data platform developers 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

3,813Companies

97,248Contacts tracked

37,946Verified emails

20,912Mobile numbers

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The 25 largest customer data platform developers worldwide

Ranked by team size

Top 25 of 3,813 customer data platform developers worldwide, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to customer data platform developers: 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	Amsterdam, NL	5,001-10,000	10,997 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 1, 2026
2	Epsilon	Strong evidence	West Chicago, IL, US	5,001-10,000	9,983 contacts →
	Strong 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 1, 2026
3	Klaviyo	Indirect evidence	Boston, MA, US	1,001-5,000	2,859 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 1, 2026
4	BRAZE	Strong evidence	London, GB	1,001-5,000	2,133 contacts →
	Strong evidence “Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…” Source: RevenueBase Database · checked Sep 1, 2026
5	Cloud Software Group	Strong evidence	Burlington, MA, US	10001+	2,023 contacts →
	Strong evidence “Cloud Software Group enables our customers to evolve, compete and succeed leveraging our software franchises for and across data, automation, insight, and collaboration.” Source: RevenueBase Database · checked Sep 1, 2026
6	Caci LTD	Partial evidence	Birmingham, GB	1,001-5,000	1,657 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 1, 2026
7	Data Axle	Partial evidence	Dallas, TX, US	1,001-5,000	1,082 contacts →
	Partial 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 1, 2026
8	Insider	Strong evidence	Istanbul, TürkiyeHQ checked Sep 1, 2026	1,001-5,000	1,036 contacts →
	Strong 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 1, 2026
9	Activecampaign	Partial evidence	Chicago, IL, US	1,001-5,000	852 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 1, 2026
10	Marigold	Indirect evidence	Nashville, TN, US	201-500	818 contacts →
	Indirect evidence “Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.” Source: RevenueBase Database · checked Sep 1, 2026
11	IBI Information Builders	Partial evidence	Fort Lauderdale, FL, US	5,001-10,000	770 contacts →
	Partial evidence “ibi™ - A global trusted leader in business intelligence, analytics, and data management solutions.” Source: RevenueBase Database · checked Sep 1, 2026
12	Vendasta	Partial evidence	Boston, MA, US	501-1,000	768 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 1, 2026
13	Khoros	Partial evidence	Sydney, AU	501-1,000	768 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 1, 2026
14	Elad Software Systems	Strong evidence	Tel, IL	501-1,000	697 contacts →
	Strong evidence “Elad is Israel’s Preeminent Software Solutions Provider of Customer Engagement Platforms, Digital Transformation Projects, Tools for Workplace Modernization and Professional…” Source: RevenueBase Database · checked Sep 1, 2026
15	Movable INK	Strong evidence	Chicago, IL, US	501-1,000	667 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 1, 2026
16	System Interact	Indirect evidence	Osasco, BR	1,001-5,000	624 contacts →
	Indirect evidence “O relacionamento e o respeito pelo cliente aliado às possibilidades da tecnologia, são elementos que definem a System Interact.” Source: RevenueBase Database · checked Sep 1, 2026
17	On24	Indirect evidence	London, GB	501-1,000	623 contacts →
	Indirect evidence “ON24, a Cvent company, is on a mission to help businesses bring their go-to-market strategy into the AI era and drive cost-effective revenue growth.” Source: RevenueBase Database · checked Sep 1, 2026
18	Optimove	Indirect evidence	New York, NY, US	501-1,000	577 contacts →
	Indirect evidence “Optimove, the creator of Positionless Marketing, frees marketing teams from the limitations of fixed roles, giving every marketer the power to execute any marketing task instantly…” Source: RevenueBase Database · checked Sep 1, 2026
19	Wunderkind	Indirect evidence	Barangaroo, AU	501-1,000	563 contacts →
	Indirect evidence “Wunderkind is pioneering a new category of AI agentic marketing decisioning, where identity meets AI to drive scalable performance across channel.” Source: RevenueBase Database · checked Sep 1, 2026
20	Analytic Partners	Indirect evidence	Miami, FL, US	501-1,000	561 contacts →
	Indirect evidence “Analytic Partners is the leader in Commercial Analytics.” Source: RevenueBase Database · checked Sep 1, 2026
21	Mastercard Dynamic Yield	Partial evidence	IL	501-1,000	492 contacts →
	Partial evidence “Mastercard Dynamic Yield helps businesses deliver digital customer experiences that are personalized, optimized, and synchronized.” Source: RevenueBase Database · checked Sep 1, 2026
22	Dotdigital	Strong evidence	New York, NY, US	201-500	488 contacts →
	Strong evidence “Dotdigital is a marketing personalization platform that helps you connect with your customers on the channels they know and love.” Source: RevenueBase Database · checked Sep 1, 2026
23	Numberly	Partial evidence	Quebec, QC, CA	501-1,000	484 contacts →
	Partial evidence “Numberly, Marketing Technologist, is a major player in the field of data marketing.” Source: RevenueBase Database · checked Sep 1, 2026
24	YES Marketing	Indirect evidence	Louisville, CO, US	201-500	482 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 1, 2026
25	Infogroup	Strong evidence	Portland, OR, US	1,001-5,000	480 contacts →
	Strong evidence “Infogroup is a big data, analytics, and marketing services provider that delivers best in class data-driven customer-centric technology solutions.” Source: RevenueBase Database · checked Sep 1, 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: customer data platform developers. 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 customer data platform developers.
Partial evidence: Its own public description names part of customer data platform developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer data platform developers. 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 3,813 customer data platform developers worldwide

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Customer data platform developers worldwide at a glance

As of Sep 1, 2026

39.0%Verified-email coverage

21.5%Mobile-number coverage

25.5Average contacts per company

11-50Median size (employees)

3.9%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

1,765

11-50

1,365

51-200

493

201-500

105

501-1,000

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 customer data platform developers, 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: 25 countries, largest first: the United States, India, the United Kingdom, Brazil, Canada, France, Germany, the Netherlands, Australia, Spain and 15 more. Country and city lists for customer data platform developers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “customer data platform developers”. 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 customer data platform developers), 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 customer data platform developers, 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, 37,946 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 between September 1, 2026 and September 14, 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.

Customer data platform developers by location

40 lists · largest first

Every Customer data platform developers 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 customer data platform developers, 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 customer data platform developers are there worldwide?

RevenueBase identified 3,813 customer data platform developers 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 Amsterdam, tops this list with the largest team on record.

Which country has the most customer data platform developers?

The United States leads with 1,374 companies, followed by India (440) and the United Kingdom (321). Every customer data platform developers list by country and city is linked on this page.

Which city has the most customer data platform developers?

London leads with 149 headquartered companies, followed by Sao Paulo (92) and New York (87).

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 37,946 verified decision-maker contacts tracked across these 3,813 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 1, 2026 and September 14, 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.