Company lists · Data refreshed November 2026
Top 25 Email verification companies worldwide
RevenueBase identified 170 company matches for email verification companies worldwide as of November 2026 and tracks 839 professional contacts across them, including 203 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for email verification companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for email verification companies follow the table.
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.
The 25 largest email verification companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 106 contacts → | ||||
Exact match “ZeroBounce is an email validation, deliverability and email finding platform helping businesses reduce bounces and land their emails in the inbox.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 81 contacts → | ||||
Exact match “Woodpecker is a cold email tool that helps B2B businesses get new customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 64 contacts → | ||||
Exact match “Bouncer is a company that provides powerful and affordable email list verification and email validation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 43 contacts → | ||||
Exact match “Clearout is a data quality engine for high-velocity go-to-market (GTM) teams.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 39 contacts → | ||||
Exact match “AtData is the global leader in email identity intelligence, helping organizations stop fraud at its earliest and most predictive signal: the email address.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 18 contacts → | ||||
Exact match “Kickbox provides technology that promotes email best practices and improves inbox placement, including a full suite of deliverability monitoring and management tools.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 17 contacts → | ||||
Exact match “RevenueBase provides the continuously refreshed, verified B2B data that AI agents need to operate reliably-with pricing that doesn’t punish high-volume usage.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 14 contacts → | ||||
Exact match “The team behind the email verification tool you’ve been searching for.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 13 contacts → | ||||
Exact match “Real-time company and people data, enriched and delivered your way.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 11 contacts → | ||||
Exact match “Most tools tell you valid, invalid, unknown, or catch-all and call it validation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 11 contacts → | ||||
Exact match “Finally Reach Every Real Email Address Risky catch-all emails are email addresses that return "valid" for all messages sent to them.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 10 contacts → | ||||
Exact match “Generect is the lead search engine for real-time B2B data.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 9 contacts → | ||||
Exact match “no2bounce.com – Smarter, Faster & More Accurate Email Verification At no2bounce, we help businesses send smarter campaigns by improving deliverability, reducing bounces, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 8 contacts → | ||||
Exact match “Stop losing valid contacts to "Unknown" data.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 8 contacts → | ||||
Exact match “Verify Email Addresses * Email Deliverability * Email Marketing Since 2003, Email List Verify has provided businesses and marketers with the highest quality email list…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 7 contacts → | ||||
Exact match “EmailOversight provides advanced email validation, threat assessment, and data append services that scale with your business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 7 contacts → | ||||
Exact match “Kleanify helps in improving your Klaviyo email deliverability by cleaning unengaged subscribers, bad emails and performing automated tests on Klaviyo to increase your sender…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “Email, Phone, IP, and Physical Address Verification with Real, Accurate, Live Data ArkOwl provides live, accurate, and rich data for identity verification.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “BounceBan verifies all kinds of emails and shines at verifying emails that are accept-all or protected by SEGs (Secure Email Gateway) and greylisting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “Email Hippo provides fast, accurate and secure email verification software, accessed via web app or API.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 4 contacts → | ||||
Exact match “Bouncify is a very fast and cost-effective bulk email verification tool.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 4 contacts → | ||||
Exact match “Enrow is a reliable and affordable platform that allows you to find and verify professional emails.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “Created by marketing industry veterans, over organizations trust NeverBounce to handle email verification and cleaning.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 4 contacts → | ||||
Exact match “Accurate List is a leading email marketing service provider that offers updated, comprehensive lists of prospective clients to various industrial sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match “Masters of email verification, simply put, we live and breath improving deliverability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “email verification companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 170 email verification companies worldwide
See the full list, filter by size, metro and specialty, and access 203 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Email verification companies worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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.
- Coverage
- Every country. Country and city lists for email verification companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “email verification companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 203 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Email verification companies by location
1 lists · largest firstEvery Email verification companies 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 SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “email verification companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many email verification companies are there worldwide?
RevenueBase identified 170 company matches for email verification companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Zerobounce tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most email verification companies?
The United States leads with 61 companies. Every email verification companies list by country and city is linked on this page.
Which city has the most email verification companies?
London leads with 8 company records, followed by Bangalore (6) and San Francisco (4).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 203 professional contacts with verified work emails tracked across these 170 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 170 email verification companies worldwide. 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.
More company lists
Company intelligence · public preview
Top 25 email verification companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 170 matching company records for email verification companies worldwide, with 839 tracked contacts and 203 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 email verification companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Zerobouncezerobounce.netHQ: Santa Barbara, CA, United StatesReported employees: 51-200 | Santa Barbara, CA, United States | 51-200 | Exact match | 106 contacts → |
“ZeroBounce is an email validation, deliverability and email finding platform helping businesses reduce bounces and land their emails in the inbox.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  woodpecker.cowoodpecker.coHQ: Wroclaw, PolandReported employees: 51-200 | Wroclaw, Poland | 51-200 | Exact match | 81 contacts → |
“Woodpecker is a cold email tool that helps B2B businesses get new customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Bouncerusebouncer.comHQ: Wroclaw, PolandReported employees: Not recorded | Wroclaw, Poland | Not recorded | Exact match | 64 contacts → |
“Bouncer is a company that provides powerful and affordable email list verification and email validation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Clearoutclearout.ioHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 43 contacts → |
“Clearout is a data quality engine for high-velocity go-to-market (GTM) teams.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Atdataatdata.comHQ: Dedham, IL, United StatesReported employees: 11-50 | Dedham, IL, United States | 11-50 | Exact match | 39 contacts → |
“AtData is the global leader in email identity intelligence, helping organizations stop fraud at its earliest and most predictive signal: the email address.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Kickboxkickbox.comHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 18 contacts → |
“Kickbox provides technology that promotes email best practices and improves inbox placement, including a full suite of deliverability monitoring and management tools.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Revenuebaserevenuebase.aiHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 17 contacts → |
“RevenueBase provides the continuously refreshed, verified B2B data that AI agents need to operate reliably-with pricing that doesn’t punish high-volume usage.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Emailableemailable.comHQ: Miami, FL, United StatesReported employees: 11-50 | Miami, FL, United States | 11-50 | Exact match | 14 contacts → |
“The team behind the email verification tool you’ve been searching for.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Enrich Labsenrich.soHQ: Dubai, United Arab EmiratesReported employees: 1-10 | Dubai, United Arab Emirates | 1-10 | Exact match | 13 contacts → |
“Real-time company and people data, enriched and delivered your way.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Kudoshubkudoshub.comHQ: Dehradun, IndiaReported employees: 11-50 | Dehradun, India | 11-50 | Exact match | 11 contacts → |
“Most tools tell you valid, invalid, unknown, or catch-all and call it validation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Scrubby Complete Email Validationscrubby.ioHQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 11 contacts → |
“Finally Reach Every Real Email Address Risky catch-all emails are email addresses that return "valid" for all messages sent to them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Generectgenerect.comHQ: Kyiv, DE, UkraineReported employees: 11-50 | Kyiv, DE, Ukraine | 11-50 | Exact match | 10 contacts → |
“Generect is the lead search engine for real-time B2B data.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  No2bounceno2bounce.comHQ: Bracknell, United KingdomReported employees: 51-200 | Bracknell, United Kingdom | 51-200 | Exact match | 9 contacts → |
“no2bounce.com – Smarter, Faster & More Accurate Email Verification At no2bounce, we help businesses send smarter campaigns by improving deliverability, reducing bounces, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Allegrowallegrow.coHQ: Glasgow, United KingdomReported employees: 1-10 | Glasgow, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Stop losing valid contacts to "Unknown" data.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Emaillistverifyemaillistverify.comHQ: Bratislava, SlovakiaReported employees: 11-50 | Bratislava, Slovakia | 11-50 | Exact match | 8 contacts → |
“Verify Email Addresses * Email Deliverability * Email Marketing Since 2003, Email List Verify has provided businesses and marketers with the highest quality email list…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Emailoversightemailoversight.comHQ: Glendale, CA, United StatesReported employees: 11-50 | Glendale, CA, United States | 11-50 | Exact match | 7 contacts → |
“EmailOversight provides advanced email validation, threat assessment, and data append services that scale with your business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Kleanifykleanify.coHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 7 contacts → |
“Kleanify helps in improving your Klaviyo email deliverability by cleaning unengaged subscribers, bad emails and performing automated tests on Klaviyo to increase your sender…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Arkowlarkowl.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 6 contacts → |
“Email, Phone, IP, and Physical Address Verification with Real, Accurate, Live Data ArkOwl provides live, accurate, and rich data for identity verification.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Dover, DE, United StatesReported employees: 11-50 | Dover, DE, United States | 11-50 | Exact match | 6 contacts → |
“BounceBan verifies all kinds of emails and shines at verifying emails that are accept-all or protected by SEGs (Secure Email Gateway) and greylisting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Email Hippo LTDemailhippo.comHQ: Launceston, AustraliaReported employees: 1-10 | Launceston, Australia | 1-10 | Exact match | 5 contacts → |
“Email Hippo provides fast, accurate and secure email verification software, accessed via web app or API.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Bouncify Email Verification Servicebouncify.ioHQ: Tirunelveli, IndiaReported employees: 11-50 | Tirunelveli, India | 11-50 | Exact match | 4 contacts → |
“Bouncify is a very fast and cost-effective bulk email verification tool.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  ENROWenrow.ioHQ: Paris, FranceReported employees: 1-10 | Paris, France | 1-10 | Exact match | 4 contacts → |
“Enrow is a reliable and affordable platform that allows you to find and verify professional emails.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Neverbounce By Zoominfoneverbounce.comHQ: Vancouver, WA, United StatesReported employees: 1-10 | Vancouver, WA, United States | 1-10 | Exact match | 4 contacts → |
“Created by marketing industry veterans, over organizations trust NeverBounce to handle email verification and cleaning.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Accurate List INCaccuratelist.comHQ: Irving, TX, United StatesReported employees: 51-200 | Irving, TX, United States | 51-200 | Exact match | 4 contacts → |
“Accurate List is a leading email marketing service provider that offers updated, comprehensive lists of prospective clients to various industrial sectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Email Readyemailready.comHQ: United KingdomReported employees: 11-50 | United Kingdom | 11-50 | Exact match | 3 contacts → |
“Masters of email verification, simply put, we live and breath improving deliverability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 170 company matches
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Email verification companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
170 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 170 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Email verification companies by location
1 lists · largest firstEvery Email verification companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for email verification companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many email verification companies did RevenueBase find worldwide?
The saved snapshot records 170 matching company records, 839 tracked contacts and 203 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 email verification companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/email-verification-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 email verification companies worldwide
RevenueBase records 170 matching company records for email verification companies worldwide, with 839 tracked contacts and 203 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 email verification companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Zerobouncezerobounce.net HQ: Santa Barbara, CA, United StatesReported employees: 51-200 | Santa Barbara, CA, United States | 51-200 | Exact match | 106 contacts → |
“ZeroBounce is an email validation, deliverability and email finding platform helping businesses reduce bounces and land their emails in the inbox.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | woodpecker.cowoodpecker.co HQ: Wroclaw, PolandReported employees: 51-200 | Wroclaw, Poland | 51-200 | Exact match | 81 contacts → |
“Woodpecker is a cold email tool that helps B2B businesses get new customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Bouncerusebouncer.com HQ: Wroclaw, PolandReported employees: Not recorded | Wroclaw, Poland | Not recorded | Exact match | 64 contacts → |
“Bouncer is a company that provides powerful and affordable email list verification and email validation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Clearoutclearout.io HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 43 contacts → |
“Clearout is a data quality engine for high-velocity go-to-market (GTM) teams.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Atdataatdata.com HQ: Dedham, IL, United StatesReported employees: 11-50 | Dedham, IL, United States | 11-50 | Exact match | 39 contacts → |
“AtData is the global leader in email identity intelligence, helping organizations stop fraud at its earliest and most predictive signal: the email address.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Kickboxkickbox.com HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 18 contacts → |
“Kickbox provides technology that promotes email best practices and improves inbox placement, including a full suite of deliverability monitoring and management tools.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Revenuebaserevenuebase.ai HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 17 contacts → |
“RevenueBase provides the continuously refreshed, verified B2B data that AI agents need to operate reliably-with pricing that doesn’t punish high-volume usage.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Emailableemailable.com HQ: Miami, FL, United StatesReported employees: 11-50 | Miami, FL, United States | 11-50 | Exact match | 14 contacts → |
“The team behind the email verification tool you’ve been searching for.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Enrich Labsenrich.so HQ: Dubai, United Arab EmiratesReported employees: 1-10 | Dubai, United Arab Emirates | 1-10 | Exact match | 13 contacts → |
“Real-time company and people data, enriched and delivered your way.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Kudoshubkudoshub.com HQ: Dehradun, IndiaReported employees: 11-50 | Dehradun, India | 11-50 | Exact match | 11 contacts → |
“Most tools tell you valid, invalid, unknown, or catch-all and call it validation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Scrubby Complete Email Validationscrubby.io HQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 11 contacts → |
“Finally Reach Every Real Email Address Risky catch-all emails are email addresses that return "valid" for all messages sent to them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Generectgenerect.com HQ: Kyiv, DE, UkraineReported employees: 11-50 | Kyiv, DE, Ukraine | 11-50 | Exact match | 10 contacts → |
“Generect is the lead search engine for real-time B2B data.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | No2bounceno2bounce.com HQ: Bracknell, United KingdomReported employees: 51-200 | Bracknell, United Kingdom | 51-200 | Exact match | 9 contacts → |
“no2bounce.com – Smarter, Faster & More Accurate Email Verification At no2bounce, we help businesses send smarter campaigns by improving deliverability, reducing bounces, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Allegrowallegrow.co HQ: Glasgow, United KingdomReported employees: 1-10 | Glasgow, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Stop losing valid contacts to "Unknown" data.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Emaillistverifyemaillistverify.com HQ: Bratislava, SlovakiaReported employees: 11-50 | Bratislava, Slovakia | 11-50 | Exact match | 8 contacts → |
“Verify Email Addresses * Email Deliverability * Email Marketing Since 2003, Email List Verify has provided businesses and marketers with the highest quality email list…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Emailoversightemailoversight.com HQ: Glendale, CA, United StatesReported employees: 11-50 | Glendale, CA, United States | 11-50 | Exact match | 7 contacts → |
“EmailOversight provides advanced email validation, threat assessment, and data append services that scale with your business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Kleanifykleanify.co HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 7 contacts → |
“Kleanify helps in improving your Klaviyo email deliverability by cleaning unengaged subscribers, bad emails and performing automated tests on Klaviyo to increase your sender…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Arkowlarkowl.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 6 contacts → |
“Email, Phone, IP, and Physical Address Verification with Real, Accurate, Live Data ArkOwl provides live, accurate, and rich data for identity verification.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Dover, DE, United StatesReported employees: 11-50 | Dover, DE, United States | 11-50 | Exact match | 6 contacts → |
“BounceBan verifies all kinds of emails and shines at verifying emails that are accept-all or protected by SEGs (Secure Email Gateway) and greylisting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Email Hippo LTDemailhippo.com HQ: Launceston, AustraliaReported employees: 1-10 | Launceston, Australia | 1-10 | Exact match | 5 contacts → |
“Email Hippo provides fast, accurate and secure email verification software, accessed via web app or API.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Bouncify Email Verification Servicebouncify.io HQ: Tirunelveli, IndiaReported employees: 11-50 | Tirunelveli, India | 11-50 | Exact match | 4 contacts → |
“Bouncify is a very fast and cost-effective bulk email verification tool.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ENROWenrow.io HQ: Paris, FranceReported employees: 1-10 | Paris, France | 1-10 | Exact match | 4 contacts → |
“Enrow is a reliable and affordable platform that allows you to find and verify professional emails.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Neverbounce By Zoominfoneverbounce.com HQ: Vancouver, WA, United StatesReported employees: 1-10 | Vancouver, WA, United States | 1-10 | Exact match | 4 contacts → |
“Created by marketing industry veterans, over organizations trust NeverBounce to handle email verification and cleaning.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Accurate List INCaccuratelist.com HQ: Irving, TX, United StatesReported employees: 51-200 | Irving, TX, United States | 51-200 | Exact match | 4 contacts → |
“Accurate List is a leading email marketing service provider that offers updated, comprehensive lists of prospective clients to various industrial sectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Email Readyemailready.com HQ: United KingdomReported employees: 11-50 | United Kingdom | 11-50 | Exact match | 3 contacts → |
“Masters of email verification, simply put, we live and breath improving deliverability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 170 company matches
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Email verification companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
170 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 170 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Email verification companies by location
1 lists · largest firstEvery Email verification companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for email verification companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many email verification companies did RevenueBase find worldwide?
The saved snapshot records 170 matching company records, 839 tracked contacts and 203 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 email verification companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/email-verification-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗