Company lists · Data refreshed September 2026

Top 25 First-party data platforms based in the United States

Name: First-party data platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 690 companies tracked

RevenueBase identified 690 first-party data platforms headquartered in the United States as of September 2026 and tracks 33,913 professional contacts across them, including 14,226 with verified work emails and 11,021 with mobile numbers. New York is the largest hub.

This list covers first-party data platforms headquartered in the United States, 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 2, 2026.

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 2, 2026 86% judged on-target in blind review

690Companies

33,913Contacts tracked

14,226Verified emails

11,021Mobile numbers

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The 25 largest first-party data platforms based in the United States

Ranked by team size

Top 25 of 690 first-party data platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to first-party data platforms: 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	Strong evidence	West Chicago, IL, United States	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 2, 2026
2	Klaviyo	Indirect evidence	Boston, MA, United States	1,001-5,000	2,859 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 2, 2026
3	Zeta Global	Indirect evidence	Nashville, TN, United States	1,001-5,000	2,570 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 2, 2026
4	Bloomreach	Partial evidence	California, CA, United States	501-1,000	1,152 contacts →
	Partial evidence “Bloomreach personalizes the ecommerce experience by unifying real-time customer and product data so businesses understand what customers really want.” Source: RevenueBase Database · checked Sep 2, 2026
5	IBI Information Builders	Partial evidence	Fort Lauderdale, FL, United States	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 2, 2026
6	Optimove	Indirect evidence	New York, NY, United States	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 2, 2026
7	Analytic Partners	Indirect evidence	Miami, FL, United States	501-1,000	561 contacts →
	Indirect evidence “Analytic Partners is the leader in Commercial Analytics.” Source: RevenueBase Database · checked Sep 2, 2026
8	Prodege, LLC	Partial evidence	El Segundo, CA, United States	501-1,000	556 contacts →
	Partial evidence “A cutting-edge marketing and consumer insights platform, Prodege has charted a course of innovation in the evolving technology landscape by helping leading brands, marketers, and…” Source: RevenueBase Database · checked Sep 2, 2026
9	YES Marketing	Indirect evidence	Louisville, CO, United States	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 2, 2026
10	Infogroup	Partial evidence	Portland, OR, United States	1,001-5,000	480 contacts →
	Partial 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 2, 2026
11	Hightouch	Partial evidence	San Francisco, CA, United States	201-500	354 contacts →
	Partial evidence “Hightouch is an Agentic Marketing Platform powered by the industry-leading Composable CDP.” Source: RevenueBase Database · checked Sep 2, 2026
12	AB Tasty	Indirect evidence	San Francisco, CA, United States	201-500	332 contacts →
	Indirect evidence “At AB Tasty, we’re your partner for pushing great ideas even further through optimization.” Source: RevenueBase Database · checked Sep 2, 2026
13	Targetbase	Indirect evidence	Raleigh, NC, United States	201-500	317 contacts →
	Indirect evidence “Targetbase is a precision marketing agency obsessed with performance-our clients’ and our own.” Source: RevenueBase Database · checked Sep 2, 2026
14	Listrak	Strong evidence	Lititz, PA, United States	201-500	298 contacts →
	Strong evidence “Listrak is the person-first marketing automation platform that seamlessly integrates data, identity, and cross-channel messaging to power hyper-personalized customer experiences.” Source: RevenueBase Database · checked Sep 2, 2026
15	Integrate	Partial evidence	Phoenix, AZ, United States	51-200	298 contacts →
	Partial evidence “Enabling B2B Marketers Connect data across demand channels Govern data + ensure integrity Analyze impact + inform next best investments” Source: RevenueBase Database · checked Sep 2, 2026
16	Claritas	Strong evidence	Cincinnati, OH, United States	201-500	295 contacts →
	Strong evidence “Claritas: Empowering Data-Driven Marketing With nearly 50 years of understanding the American consumer, Claritas offers a comprehensive marketing optimization platform.” Source: RevenueBase Database · checked Sep 2, 2026
17	Hevo Data	Strong evidence	San Francisco, CA, United States	201-500	273 contacts →
	Strong evidence “Hevo is an Automated Unified Data Platform that helps companies understand their users and customers better.” Source: RevenueBase Database · checked Sep 2, 2026
18	Leandata	Strong evidence	Santa Clara, CA, United States	51-200	207 contacts →
	Strong evidence “Help your teams align to your customer’s journey by uniting your CRM data, signals, and tools from the first buying signal to closed-won and beyond.” Source: RevenueBase Database · checked Sep 2, 2026
19	Segment	Strong evidence	San Francisco, CA, United States	501-1,000	195 contacts →
	Strong evidence “Segment is a customer data platform (CDP) that helps companies harness first-party customer data.” Source: RevenueBase Database · checked Sep 2, 2026
20	Marquis	Indirect evidence	Plano, TX, United States	201-500	194 contacts →
	Indirect evidence “Community banks and credit unions know their customers better than any big bank ever will.” Source: RevenueBase Database · checked Sep 2, 2026
21	Stirista	Partial evidence	San Antonio, TX, United States	51-200	163 contacts →
	Partial evidence “Stirista is the only company that combines data, email, and digital execution to help clients acquire and retain customers by creating a data-driven, repeatable, and scalable…” Source: RevenueBase Database · checked Sep 2, 2026
22	Dovetail	Partial evidence	San Francisco, United States	51-200	161 contacts →
	Partial evidence “Dovetail is the always-on customer intelligence platform that automatically centralizes and instantly transforms every customer interaction into actionable insights that are…” Source: RevenueBase Database · checked Sep 2, 2026
23	Weborama	Partial evidence	NY, United States	51-200	159 contacts →
	Partial evidence “For over 25 years, Weborama has enabled brands, agencies and publishers to leverage their audiences and inform their marketing decisions using data and artificial intelligence.” Source: RevenueBase Database · checked Sep 2, 2026
24	Celebrus	Indirect evidence	Cary, NC, United States	51-200	150 contacts →
	Indirect evidence “For over 25 years, Celebrus has set the gold standard globally for improving marketing effectiveness and preventing fraud across all industries.” Source: RevenueBase Database · checked Sep 2, 2026
25	Snowplow	Partial evidence	Boston, MA, United States	51-200	137 contacts →
	Partial evidence “Snowplow is the Customer Context Layer that transforms raw behavioral data into real-time customer context for AI agents and advanced analytics.” Source: RevenueBase Database · checked Sep 2, 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: first-party data platforms. 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 first-party data platforms.
Partial evidence: Its own public description names part of first-party data platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name first-party data platforms. 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 690 first-party data platforms based in the United States

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First-party data platforms based in the United States at a glance

As of Sep 2, 2026

41.9%Verified-email coverage

32.5%Mobile-number coverage

49.1Average contacts per company

11-50Median size (employees)

9.6%Largest-city concentration · New York

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

279

11-50

263

51-200

106

201-500

501-1,000

1,001-5,000

5,001-10,000

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 first-party data platforms, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “first-party data platforms”. 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 first-party data platforms), 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 first-party data platforms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 14,226 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 2, 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.

First-party data platforms by metro

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 first-party data platforms, 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 first-party data platforms are there based in the United States?

RevenueBase identified 690 first-party data platforms headquartered in the United States 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 West Chicago, tops this list with the largest team on record.

Which city has the most first-party data platforms?

New York leads with 66 headquartered companies, followed by San Francisco (44) and Chicago (21).

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 14,226 verified decision-maker contacts tracked across these 690 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 2, 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.