Company lists · Data refreshed September 2026
Top 25 B2B contact database companies based in the United States
RevenueBase identified 662 B2B contact database companies headquartered in the United States as of September 2026 and tracks 13,406 professional contacts across them, including 1,781 with verified work emails. New York is the largest hub.
This list covers B2B contact database companies 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 14, 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.
The 25 largest B2B contact database companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 863 contacts → | ||||
Indirect evidence “Apollo.io is the AI-powered end-to-end go-to-market platform that empowers sales, marketing, and revenue teams to find prospects, engage customers, and close deals with…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 708 contacts → | ||||
Partial evidence “Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| Try free | |||||
Not rated “RevenueBase is a B2B contact data platform. This directory is built from its company graph.” | |||||
| 3 | 697 contacts → | ||||
Partial evidence “Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 528 contacts → | ||||
Indirect evidence “movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 480 contacts → | ||||
Indirect evidence “At SMARTe, we understand the challenges faced by revenue-generating teams.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 416 contacts → | ||||
Partial evidence “LeadGenius helps B2B companies find and reach their next best customers.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 391 contacts → | ||||
Strong evidence “aMarketForce is a full-scale B2B Contact Database & Demand Generation services company.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 359 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 309 contacts → | ||||
Partial evidence “Vereigen Media is a U.S-based B2B demand generation company that supports organizations connect with data-driven lead generation and audience engagement solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 307 contacts → | ||||
Indirect evidence “Data Driven.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 223 contacts → | ||||
Partial evidence “Founded in 2016 and headquartered in Pensacola, Florida, MarketJoy is a B2B lead generation, appointment generation and sales development partner built to deliver predictable…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 194 contacts → | ||||
Partial evidence “ChannelGrowth provides B2B data acquisition, lead generation, prospecting, and sales teams at scale.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 159 contacts → | ||||
Indirect evidence “eCore helps GTM teams fix the data problems that slow down sales, marketing, RevOps, and AI initiatives.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 145 contacts → | ||||
Indirect evidence “Valasys Media, a globally acclaimed company.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 114 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 104 contacts → | ||||
Indirect evidence “Build pipeline with confidence.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 96 contacts → | ||||
Indirect evidence “We are Right Pace TechMedia, founded in 2017, headquartered in WY, USA, with 2 operational centers in Pune, India.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 93 contacts → | ||||
Partial evidence “SBT Research is a one of the leading B2B Demand Generation and information publishing services company.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 90 contacts → | ||||
Partial evidence “At ContactOut, we pride ourselves on being the most accurate contact data intelligence tool out there.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 80 contacts → | ||||
Strong evidence “RocketReach is an intuitive and easy-to-use lead intelligence and sales intelligence solution that is powered by the largest and most accurate contact database on this planet.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 79 contacts → | ||||
Partial evidence “Ready leads is the go-to destination for B2B revenue and growth professionals to get actionable leads for sales & marketing campaigns: find where your past customers went to…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 70 contacts → | ||||
Partial evidence “KAT-i Research we are a Data as a Service Company, custom B2B list research company.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 68 contacts → | ||||
Partial evidence “Explorium is the leading B2B data layer for building high performance GTM agents.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 59 contacts → | ||||
Partial evidence “HelloProspect is a Data Driven, Digitally Backed - Multilingual B2B Marketing, Lead Generation & Research Intelligence company.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 57 contacts → | ||||
Partial evidence “AdvertMarketers is a B2B Lead Generation, Demand Generation & Staffing company offering an array of solutions that are customized, competitive & consequential.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
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: B2B contact database 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 B2B contact database companies.
- Partial evidence
- Its own public description names part of B2B contact database companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name B2B contact database 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 662 B2B contact database companies based in the United States
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B2B contact database companies based in the United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 662 companies.
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 contact database 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.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “B2B contact database 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 B2B contact database 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 B2B contact database companies, 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, 1,781 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 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.
B2B contact database companies 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 B2B contact database 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 B2B contact database companies are there based in the United States?
RevenueBase identified 662 B2B contact database companies 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?
apollo.io, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most B2B contact database companies?
New York leads with 58 headquartered companies, followed by San Francisco (33) and Wilmington (24).
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 1,781 verified decision-maker contacts tracked across these 662 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 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 662 B2B contact database companies based in the United States. Start with a free account, no credit card.
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B2B contact database companies by geography
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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.
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