Company lists · Data refreshed October 2026
Top 25 Verified contact data providers worldwide
RevenueBase identified 827 verified contact data providers worldwide as of October 2026 and tracks 9,269 professional contacts across them, including 2,112 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers verified contact data providers 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 October 1, 2026. Country and city lists for verified contact data providers 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.
The 25 largest verified contact data providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,088 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 Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 2 | 530 contacts → | ||||
Partial evidence “Cognism provides accurate, compliant-first B2B data and sales intelligence for teams growing across Europe and beyond.” Source: RevenueBase Database · checked Oct 1, 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 | 416 contacts → | ||||
Indirect evidence “LeadGenius helps B2B companies find and reach their next best customers.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 5 | 162 contacts → | ||||
Indirect evidence “Supercharge Your Success with InFynd!” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 6 | 159 contacts → | ||||
Partial evidence “eCore helps GTM teams fix the data problems that slow down sales, marketing, RevOps, and AI initiatives.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 7 | 114 contacts → | ||||
Strong 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 Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 8 | 90 contacts → | ||||
Strong evidence “At ContactOut, we pride ourselves on being the most accurate contact data intelligence tool out there.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 9 | 80 contacts → | ||||
Partial 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 Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 10 | 76 contacts → | ||||
Partial evidence “GBG Loqate is a trusted data specialist for businesses of all sizes and sectors.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 11 | 70 contacts → | ||||
Partial evidence “KAT-i Research we are a Data as a Service Company, custom B2B list research company.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 12 | 70 contacts → | ||||
Partial evidence “Contact us to know more about how we can help you Phone:+1 347 316 8007 email: info@Ltpcoutsourcing.com What we do?” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 13 | 64 contacts → | ||||
Strong evidence “Markaaz is the leading global business identity and intelligence platform, connecting verified businesses through superior data, advanced technology, and a trusted global network.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 14 | 63 contacts → | ||||
Indirect evidence “Zintlr is a B2B database and sales intelligence platform designed to help businesses boost their sales through smart prospecting and personalized outreach.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 15 | 59 contacts → | ||||
Indirect evidence “HF Labs», LLC, is a Russian company that was found in the beginning of the year 2005, aiming at software development and service provision of the highest quality in the sphere of…” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 16 | 59 contacts → | ||||
Partial evidence “Bouncer is a company that provides powerful and affordable email list verification and email validation.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 17 | 50 contacts → | ||||
Strong evidence “ListKit is a leading B2B Data Provider that helps businesses build hyper-targeted contact lists without the need for manual verification.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 18 | 46 contacts → | ||||
Strong evidence “At Connectist, we specialize in providing high-quality contact data for decision-makers in companies worldwide.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 19 | 46 contacts → | ||||
Indirect evidence “Wiza is the world’s largest and most accurate prospecting platform-trusted by over sales, marketing, and recruiting professionals.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 20 | 46 contacts → | ||||
Indirect evidence “Prospect Wallet helps B2B sales and marketing teams reach real decision-makers, not just names on a list.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 21 | 40 contacts → | ||||
Partial evidence “Profinder is an online consumer and business contact search platform, for prospecting and targeting advertising and sales.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 22 | 39 contacts → | ||||
Partial evidence “Clearout is a data quality engine for high-velocity go-to-market (GTM) teams.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 23 | 38 contacts → | ||||
Partial evidence “THE DATA QUALITY COMPANY Data8 is an award winning data quality management company.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Partial evidence “We specialise in putting just the right health-care contacts directly in the hands of your sales professionals.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 25 | 34 contacts → | ||||
Partial evidence “Welcome to Prodeets, where precision meets performance in B2B Marketing Data solutions.” Source: RevenueBase Database · checked Oct 1, 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: verified contact data providers. 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 verified contact data providers.
- Partial evidence
- Its own public description names part of verified contact data providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name verified contact data providers. 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 827 verified contact data providers worldwide
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Verified contact data providers worldwide at a glance
As of Oct 1, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 verified contact data providers, 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
- Every country. Country and city lists for verified contact data providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “verified contact data providers”. 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 verified contact data providers), 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 verified contact data providers, 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, 2,112 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 October 1, 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.
Verified contact data providers by location
3 lists · largest firstEvery Verified contact data providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 verified contact data providers, 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 verified contact data providers are there worldwide?
RevenueBase identified 827 verified contact data providers worldwide as of October 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?
Data Axle, headquartered in Dallas, tops this list with the largest team on record.
Which country has the most verified contact data providers?
The United States leads with 301 companies, followed by India (115) and the United Kingdom (58). Every verified contact data providers list by country and city is linked on this page.
Which city has the most verified contact data providers?
New York leads with 40 headquartered companies, followed by Dhaka (17) and London (17).
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 2,112 verified decision-maker contacts tracked across these 827 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.