Company lists · Data refreshed September 2026

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

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, how directly it supports the match, 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 SmartSearch, 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 Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review
690Companies
33,913Contacts tracked
14,226Verified emails
11,021Mobile numbers
Unlock all 690 companies Free signup · no credit card · 500 free credits

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. Evidence rates how directly each company's own description names first-party data platforms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
EpsilonStrong evidence
West Chicago, IL, United States5,001-10,0009,983

“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: company website · checked Sep 2, 2026
2
KlaviyoIndirect evidence
Boston, MA, United States1,001-5,0002,859

“Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.”

Source: company website · checked Sep 2, 2026
3
Zeta GlobalIndirect evidence
Nashville, TN, United States1,001-5,0002,570

“At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.”

Source: company website · checked Sep 2, 2026
4
BloomreachPartial evidence
California, CA, United States501-1,0001,152

“Bloomreach personalizes the ecommerce experience by unifying real-time customer and product data so businesses understand what customers really want.”

Source: company website · checked Sep 2, 2026
5
IBI Information BuildersPartial evidence
Fort Lauderdale, FL, United States5,001-10,000770

“ibi™ - A global trusted leader in business intelligence, analytics, and data management solutions.”

Source: company website · checked Sep 2, 2026
6
OptimoveIndirect evidence
New York, NY, United States501-1,000577

“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: company website · checked Sep 2, 2026
7
Analytic PartnersIndirect evidence
Miami, FL, United States501-1,000561

“Analytic Partners is the leader in Commercial Analytics.”

Source: company website · checked Sep 2, 2026
8
Prodege, LLCPartial evidence
El Segundo, CA, United States501-1,000556

“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: company website · checked Sep 2, 2026
9
YES MarketingIndirect evidence
Louisville, CO, United States201-500482

“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: company website · checked Sep 2, 2026
10
InfogroupPartial evidence
Portland, OR, United States1,001-5,000480

“Infogroup is a big data, analytics, and marketing services provider that delivers best in class data-driven customer-centric technology solutions.”

Source: company website · checked Sep 2, 2026
11
HightouchPartial evidence
San Francisco, CA, United States201-500354

“Hightouch is an Agentic Marketing Platform powered by the industry-leading Composable CDP.”

Source: company website · checked Sep 2, 2026
12
AB TastyIndirect evidence
San Francisco, CA, United States201-500332

“At AB Tasty, we’re your partner for pushing great ideas even further through optimization.”

Source: company website · checked Sep 2, 2026
13
TargetbaseIndirect evidence
Raleigh, NC, United States201-500317

“Targetbase is a precision marketing agency obsessed with performance-our clients’ and our own.”

Source: company website · checked Sep 2, 2026
14
ListrakStrong evidence
Lititz, PA, United States201-500298

“Listrak is the person-first marketing automation platform that seamlessly integrates data, identity, and cross-channel messaging to power hyper-personalized customer experiences.”

Source: company website · checked Sep 2, 2026
15
IntegratePartial evidence
Phoenix, AZ, United States51-200298

“Enabling B2B Marketers Connect data across demand channels Govern data + ensure integrity Analyze impact + inform next best investments”

Source: company website · checked Sep 2, 2026
16
ClaritasStrong evidence
Cincinnati, OH, United States201-500295

“Claritas: Empowering Data-Driven Marketing With nearly 50 years of understanding the American consumer, Claritas offers a comprehensive marketing optimization platform.”

Source: company website · checked Sep 2, 2026
17
Hevo DataStrong evidence
San Francisco, CA, United States201-500273

“Hevo is an Automated Unified Data Platform that helps companies understand their users and customers better.”

Source: company website · checked Sep 2, 2026
18
LeandataStrong evidence
Santa Clara, CA, United States51-200207

“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: company website · checked Sep 2, 2026
19
SegmentStrong evidence
San Francisco, CA, United States501-1,000195

“Segment is a customer data platform (CDP) that helps companies harness first-party customer data.”

Source: company website · checked Sep 2, 2026
20
MarquisIndirect evidence
Plano, TX, United States201-500194

“Community banks and credit unions know their customers better than any big bank ever will.”

Source: company website · checked Sep 2, 2026
21
StiristaPartial evidence
San Antonio, TX, United States51-200163

“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: company website · checked Sep 2, 2026
22
DovetailPartial evidence
San Francisco, United States51-200161

“Dovetail is the always-on customer intelligence platform that automatically centralizes and instantly transforms every customer interaction into actionable insights that are…”

Source: company website · checked Sep 2, 2026
23
WeboramaPartial evidence
NY, United States51-200159

“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: company website · checked Sep 2, 2026
24
CelebrusIndirect evidence
Cary, NC, United States51-200150

“For over 25 years, Celebrus has set the gold standard globally for improving marketing effectiveness and preventing fraud across all industries.”

Source: company website · checked Sep 2, 2026
25
SnowplowPartial evidence
Boston, MA, United States51-200137

“Snowplow is the Customer Context Layer that transforms raw behavioral data into real-time customer context for AI agents and advanced analytics.”

Source: company website · checked Sep 2, 2026

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
11-50Median size (employees)
New YorkLargest hub · 66 HQs
11,021Contacts with mobile numbers
Sep 2, 2026Data refreshed

Companies by employee count

1-10
279
11-50
263
51-200
106
201-500
24
501-1,000
9
1,001-5,000
5
5,001-10,000
4

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 evidence 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 SmartSearch, 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.
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 an evidence 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

  • First-party data platforms in New York66
  • First-party data platforms in San Francisco44

Frequently asked

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.

Ready to reach these companies? Verified emails and direct dials for all 690 first-party data platforms based in the United States. Start with a free account, no credit card.

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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 SmartSearch, 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.