Company lists · Data refreshed November 2026

Top 25 Reverse email lookup software companies worldwide

RevenueBase identified 346 company matches for reverse email lookup software companies worldwide as of November 2026 and tracks 5,065 professional contacts across them, including 1,525 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for reverse email lookup software 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 5, 2026. Country and city lists for reverse email lookup software 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
346Companies
5,065Contacts tracked
1,525Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest reverse email lookup software companies worldwide

Ranked by team size
Top 25 of 346 company matches for reverse email lookup software companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, AZ, United KingdomHQ recorded Nov 5, 2026201-500863 contacts →

Exact match

“Lead Forensics is the software that reveals the identity of your anonymous website visitors, turning them into actionable sales-ready leads in real-time, at your fingertips.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-500498 contacts →

Exact match

“Cognism provides accurate, compliant-first B2B data and sales intelligence for teams growing across Europe and beyond.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchBerkeley, CA, United StatesHQ recorded Nov 5, 2026201-500445 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchBoston, MA, United StatesHQ recorded Nov 5, 2026201-500348 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchVancouver, WA, United StatesHQ recorded Nov 5, 2026501-1,000110 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchSanta Barbara, CA, United StatesHQ recorded Nov 5, 202651-200106 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 5, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, United StatesHQ recorded Nov 5, 202651-20096 contacts →

Exact match

“At ContactOut, we pride ourselves on being the most accurate contact data intelligence tool out there.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchBrooklyn, United StatesHQ recorded Nov 5, 202651-20086 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSeattle, WA, United StatesHQ recorded Nov 5, 202611-5084 contacts →

Exact match

“Whitepages is the trusted source for identity data and property intelligence, bringing together publicly available information to help millions of monthly users in the U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchWroclaw, PolandHQ recorded Nov 5, 202651-20081 contacts →

Exact match

“Woodpecker is a cold email tool that helps B2B businesses get new customers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchWorcester, United KingdomHQ recorded Nov 5, 2026501-1,00064 contacts →

Exact match

“GBG Loqate is a trusted data specialist for businesses of all sizes and sectors.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchWroclaw, PolandHQ recorded Nov 5, 2026n/a64 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 5, 2026 · View company records in RevenueBase
13Exact matchAustin, TX, United StatesHQ recorded Nov 5, 202651-20062 contacts →

Exact match

“Markaaz is the leading global business identity and intelligence platform, connecting verified businesses through superior data, advanced technology, and a trusted global network.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchNovi, MI, United StatesHQ recorded Nov 5, 202611-5050 contacts →

Exact match

“Streamline is an Email list, list brokerage, database building, and specialized marketing services provider.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchShort Hills, NJ, United StatesHQ recorded Nov 5, 202611-5044 contacts →

Exact match

“RelPro delivers a unique combination of smart prospecting, quality leads and targeted intelligence for sales, marketing and business development professionals.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202611-5043 contacts →

Exact match

“Clearout is a data quality engine for high-velocity go-to-market (GTM) teams.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBellevue, WA, United StatesHQ recorded Nov 5, 202611-5042 contacts →

Exact match

“Trestle is a Bellevue, Washington–based technology company specializing in enterprise-grade identity data APIs for validation, verification, and enrichment.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchTampa, FL, United StatesHQ recorded Nov 5, 202611-5042 contacts →

Exact match

“ListKit is a leading B2B Data Provider that helps businesses build hyper-targeted contact lists without the need for manual verification.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchNewark, DE, United StatesHQ recorded Nov 5, 202611-5041 contacts →

Exact match

“Wiza makes prospecting magical.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchHelsinki, FinlandHQ recorded Nov 5, 202611-5040 contacts →

Exact match

“Profinder is an online consumer and business contact search platform, for prospecting and targeting advertising and sales.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchSan Diego, CA, United StatesHQ recorded Nov 5, 202651-20038 contacts →

Exact match

“Our story began as two companies in the business of finding and managing information about people.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, United StatesHQ recorded Nov 5, 202611-5037 contacts →

Exact match

“AI Ark is a B2B data platform built for sales teams and GTM agencies that need accurate, ready-to-use contact data - not stale CSV exports.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchWilmington, DE, United StatesHQ recorded Nov 5, 202611-5035 contacts →

Exact match

“Hunter is an all-in-one email outreach platform to identify relevant prospects, find their email addresses, and send cold email campaigns.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchSheridan, WY, United StatesHQ recorded Nov 5, 202611-5034 contacts →

Exact match

“GrowMeOrganic is an all-in-one email finder and cold email software for Entrepreneurs, Marketing Executives, Growth Hackers, and Digital Agencies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchAltrincham, United KingdomHQ recorded Nov 5, 202611-5032 contacts →

Exact match

“Hopewiser design and supply Address and Email Validation software, Data Cleansing services, and Bank Account Payment Validation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 346 reverse email lookup software companies worldwide

See the full list, filter by size, metro and specialty, and access 1,525 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Reverse email lookup software companies worldwide at a glance

As of Nov 5, 2026
30.1%Verified-email coverage
14.6Average contacts per company
1-10Median size (employees)
4.0%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
179
11-50
125
51-200
30
201-500
7
501-1,000
4
5,001-10,000
1

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 reverse email lookup software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “reverse email lookup software 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 1,525 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 5, 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.

Reverse email lookup software companies by location

2 lists · largest first

Every Reverse email lookup software 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 “reverse email lookup software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many reverse email lookup software companies are there worldwide?

RevenueBase identified 346 company matches for reverse email lookup software 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?

Lead Forensics tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most reverse email lookup software companies?

The United States leads with 144 companies, followed by India (44). Every reverse email lookup software companies list by country and city is linked on this page.

Which city has the most reverse email lookup software companies?

New York leads with 14 company records, followed by London (11) and San Francisco (9).

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 1,525 professional contacts with verified work emails tracked across these 346 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 346 reverse email lookup software companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.