Company lists · Data refreshed September 2026

Top 25 B2B data marketplaces based in the United States

RevenueBase identified 481 B2B data marketplaces headquartered in the United States as of September 2026 and tracks 10,329 professional contacts across them, including 2,846 with verified work emails and 1,909 with mobile numbers. New York is the largest hub.

This list covers B2B data marketplaces 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
481Companies
10,329Contacts tracked
2,846Verified emails
1,909Mobile numbers
Unlock all 481 companies Free signup · no credit card · 500 free credits

The 25 largest B2B data marketplaces based in the United States

Ranked by team size
Top 25 of 481 B2B data marketplaces 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 B2B data marketplaces: 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
AppdirectPartial evidence
Charlotte, United States501-1,000931

“AppDirect is a San Francisco-based B2B subscription commerce platform company that brings together technology providers, advisors, and businesses to simplify how they buy, sell…”

Source: company website · checked Sep 2, 2026
2
AnteriadPartial evidence
New York, NY, United States501-1,000737

Data Driven.”

Source: company website · checked Sep 2, 2026
RevenueBasePublisher of this directory
Boston, MA, United Statesn/aTry free

“RevenueBase is a B2B contact data platform. This directory is built from its company graph.”

3
LeadgeniusPartial evidence
Berkeley, CA, United States201-500424

“LeadGenius helps B2B companies find and reach their next best customers.”

Source: company website · checked Sep 2, 2026
4
LUSHAStrong evidence
Boston, MA, United States201-500367

“Lusha is the B2B data and sales intelligence system used by sales, marketing, recruiting, RevOps teams, and AI agents to find contacts, enrich records, and track real-world buying…”

Source: company website · checked Sep 2, 2026
5
IncortaPartial evidence
Foster City, CA, United States201-500348

“Incorta is the first and only open data delivery platform that enables real-time analysis of live, detailed data across all systems of record-without the need for complex ETL…”

Source: company website · checked Sep 2, 2026
6
IntegrateStrong 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
7
MODEPartial evidence
San Francisco, CA, United States51-200266

“Mode is the modern business intelligence platform that unites data teams with business teams to build analytics that drive business outcomes.”

Source: company website · checked Sep 2, 2026
8
BomboraStrong evidence
Reno, NV, United States201-500194

“The true B2B data pioneer, Bombora connects the B2B ecosystem in a one-of-a-kind Data Co-op of leading publishers, brand websites, and premium data providers.”

Source: company website · checked Sep 2, 2026
9
ChannelgrowthStrong evidence
Houston, TX, United States201-500194

“ChannelGrowth provides B2B data acquisition, lead generation, prospecting, and sales teams at scale.”

Source: company website · checked Sep 2, 2026
10
DatameerPartial evidence
San Francisco, CA, United States51-200169

“Datameer: Your Solution to Self-Serve Data Analysis and Visualization.”

Source: company website · checked Sep 2, 2026
11
Spiceworks Ziff DavisPartial evidence
Austin, TX, United States501-1,000125

“A global organization with more than 1,500 employees across 10 offices, we are a trusted global marketplace that connects technology buyers and sellers with the most actionable…”

Source: company website · checked Sep 2, 2026
12
DiscoverorgPartial evidence
Conshohocken, PA, United States501-1,000114

“DiscoverOrg helps go-to-market teams accelerate growth with the most accurate company and contact data on the market, and a suite of tools to ensure continued growth and success.”

Source: company website · checked Sep 2, 2026
13
Right Pace Techmedia, LLCIndirect evidence
Sheridan, WY, United States51-20097

“We are Right Pace TechMedia, founded in 2017, headquartered in WY, USA, with 2 operational centers in Pune, India.”

Source: company website · checked Sep 2, 2026
14
Nations Info CorpIndirect evidence
Goleta, CA, United States51-20089

“Since 2005, we’ve built and applied a proven, proprietary platform that works exceedingly well.”

Source: company website · checked Sep 2, 2026
15
OpenseePartial evidence
New York, United States51-20087

“Opensee is an AI-powered data platform for financial institutions, providing interactive data quality, aggregation, analytics, and reporting.”

Source: company website · checked Sep 2, 2026
16
Pipeline360Partial evidence
Boulder, CO, United States201-50086

“Pipeline360 is the trusted partner for B2B marketers, delivering predictable, scalable pipeline growth through a streamlined Demand-as-a-Service model.”

Source: company website · checked Sep 2, 2026
17
1010dataIndirect evidence
New York, United States201-50082

“For more than 20 years, 1010data has helped financial, retail and consumer goods customers monitor shifts in consumer demand and market conditions and rapidly respond with…”

Source: company website · checked Sep 2, 2026
18
ExploriumStrong evidence
Lehi, UT, United States51-20072

“Explorium is the leading B2B data layer for building high performance GTM agents.”

Source: company website · checked Sep 2, 2026
19
Kat-I ResearchStrong evidence
San Francisco, CA, United States51-20070

“KAT-i Research we are a Data as a Service Company, custom B2B list research company.”

Source: company website · checked Sep 2, 2026
20
import.ioPartial evidence
San Francisco, CA, United States51-20064

“Import.io unlocks a world of web data, delivering it directly to enterprises to fuel business insight and competitive advantage.”

Source: company website · checked Sep 2, 2026
21
WebdataguruStrong evidence
Houston, TX, United States51-20062

“a brand owned by, is an - provider helping organizations transform fragmented web, marketplace, competitor, and product data into reliable, actionable intelligence.”

Source: company website · checked Sep 2, 2026
22Tampa, FL, United States51-20057

“3D2B is a service provider whose primary business and expertise is in providing B2B customer acquisition solutions to high-technology companies worldwide.”

Source: company website · checked Sep 2, 2026
23
Ziff Davis B2BPartial evidence
Chicago, IL, United States51-20055

“Ziff Davis B2B is the global market leader in omni-channel B2B marketing, providing our customers with precise access to the world’s most powerful technology buyers.”

Source: company website · checked Sep 2, 2026
24
CoresignalPartial evidence
New York, NY, United States51-20046

“Coresignal provides fresh public web data and data intelligence infrastructure for AI agents, enterprise applications, and business workflows.”

Source: company website · checked Sep 2, 2026
25
SalesgeniePartial evidence
Dallas, TX, United States1,001-5,00036

“Salesgenie is an easy-to-use online platform that gives you the power to leverage business and consumer data to find new prospects and earn new customers.”

Source: company website · checked Sep 2, 2026

Showing 25 of 481 B2B data marketplaces based in the United States

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B2B data marketplaces based in the United States at a glance

As of Sep 2, 2026
11-50Median size (employees)
New YorkLargest hub · 55 HQs
1,909Contacts with mobile numbers
Sep 2, 2026Data refreshed

Companies by employee count

1-10
143
11-50
202
51-200
96
201-500
25
501-1,000
11
1,001-5,000
2
10001+
2

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 B2B data marketplaces, 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 “B2B data marketplaces”. 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 B2B data marketplaces, 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, 2,846 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.

Frequently asked

How many B2B data marketplaces are there based in the United States?

RevenueBase identified 481 B2B data marketplaces 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?

Appdirect, headquartered in Charlotte, tops this list with the largest team on record.

Which city has the most B2B data marketplaces?

New York leads with 55 headquartered companies, followed by San Francisco (35) and Wilmington (14).

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 2,846 verified decision-maker contacts tracked across these 481 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 481 B2B data marketplaces 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.