Company lists · Data refreshed September 2026

Top 25 B2B email append services worldwide

RevenueBase identified 172 company matches for B2B email append services worldwide as of September 2026 and tracks 957 professional contacts across them, including 86 with verified work emails. The United States is the largest market and Bangalore the largest hub.

This list covers company matches for B2B email append services 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 September 30, 2026. Country and city lists for B2B email append services 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 Sep 30, 2026 How this list was built
172Companies
957Contacts tracked
86Verified emails
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The 25 largest B2B email append services worldwide

Ranked by team size
Top 25 of 172 company matches for B2B email append services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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 matchNovi, MI, United StatesHQ recorded Sep 30, 202611-5051 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2Exact matchScarborough, United KingdomHQ recorded Sep 30, 202611-5047 contacts →

Exact match

“Emailmovers are expert B2B email marketers, helping businesses unlock the full potential of email through targeted, high-performing campaigns.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
RevenueBasePublisher of this directory
Not ratedBoston, MA, United Statesn/aTry free

Not rated

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

3Exact matchPlano, TX, United StatesHQ recorded Sep 30, 202651-20032 contacts →

Exact match

“eSalesData is a fast growing market specialist in delivering Sales leads, email/data appending, application development and online marketing solutions.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4Exact matchOntario, CA, United StatesHQ recorded Sep 30, 2026201-50023 contacts →

Exact match

“INFODATAPLACE provide end-to-end marketing and sales solutions that make B2B sales pipelines stronger and faster with maximum ROI.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5Exact matchBurhanpur, IndiaHQ recorded Sep 30, 202611-5013 contacts →

Exact match

“About Data Lead Generation Founded in 2019 by Zakir Hussain, Data Lead Generation is a leading provider of B2B data solutions.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6Exact matchLondon, South AfricaHQ recorded Sep 30, 202611-5012 contacts →

Exact match

“Want to build a pipeline of real leads and grow your business?”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7Exact matchBeaverton, OR, United StatesHQ recorded Sep 30, 202651-20012 contacts →

Exact match

“Since the inception Global Email Lists is committed to provide quality e-mail marketing and its related services to clients worldwide.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8Exact matchRichardson, TX, United StatesHQ recorded Sep 30, 2026201-50011 contacts →

Exact match

“United & Sterling is an email marketing company with a rich history of partnering together with the absolute most successful businesses, agencies, and consulting firms to expand…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9Exact matchPune, IndiaHQ recorded Sep 30, 20261-1011 contacts →

Exact match

“Data Cart Zone is a Pune-based B2B data solutions company, established in 2019, specializing in high-quality email databases and mobile number databases that help businesses…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10Exact matchUnited StatesHQ recorded Sep 30, 202651-2009 contacts →

Exact match

“Dataji is the leading provider of go-to-market 100% guaranteed B2B contact data.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11Exact matchKalaroa, BangladeshHQ recorded Sep 30, 202611-509 contacts →

Exact match

“ListBuildup: Your Trusted B2B Lead Generation Agency At ListBuildup, we specialize in providing top-notch B2B lead generation services.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12Exact matchLovell, WY, United StatesHQ recorded Sep 30, 202611-509 contacts →

Exact match

“Find your perfect audience with B2B email list across the globe.* We are niche pioneers of business accelerating data intelligence, data consultancy and data-driven services, for…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13Exact matchAtlanta, United StatesHQ recorded Sep 30, 202611-509 contacts →

Exact match

“About Datagenics is one of the fastest growing market specialist in delivering Sales leads, email/data appending, application development and online marketing solutions.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 30, 202611-508 contacts →

Exact match

“Most B2B data is a liability dressed up as an asset.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15Exact matchNew York, United StatesHQ recorded Sep 30, 202611-508 contacts →

Exact match

“Data Marketers Group is a leading B2B data-driven marketing service company – specialized in providing quality databases at competitive prices.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16Exact matchPetaling Jaya, MalaysiaHQ recorded Sep 30, 20261-108 contacts →

Exact match

“Wave Evolution deliver full range of digital marketing solutions to acquire and retain customers, powered by our huge base of business and consumer contact database, servicing…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17Exact matchGangni, BangladeshHQ recorded Sep 30, 20261-108 contacts →

Exact match

“DetailsInfo is the Torikuls portfolio."Are You Looking For The New Client For Your Business!" If yes then please feel free to contact me at any time if you are interested in any…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18Exact matchRotherham, United KingdomHQ recorded Sep 30, 20261-106 contacts →

Exact match

“Data Planning - We take the headaches away from your data planning and buying Email Marketing - Creative Broadcast enables you to directly target your key audience via email…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19Exact matchHenderson, NV, United StatesHQ recorded Sep 30, 202611-506 contacts →

Exact match

“Infinity Digisolutions appreciates that no-one knows your business better than yourself so we never try to sermonize you with the business management protocols.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20Exact matchHelsinki, FinlandHQ recorded Sep 30, 20261-105 contacts →

Exact match

“Kasvata B2B-myyntiäsi laadukkaan sähköpostimarkkinoinnin avulla.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21Exact matchUnited StatesHQ recorded Sep 30, 202651-2005 contacts →

Exact match

“OriginLists provides a complete suite of premier Data Appending Services and Business List Services through which businesses can add missing and valuable information to their…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22Exact matchMonmouth Junction, NJ, United StatesHQ recorded Sep 30, 202651-2005 contacts →

Exact match

“Fount Media provides a complete suite of premier Data Appending Services and Business List Services through which businesses can add missing and valuable information to their…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23Exact matchSingaporeHQ recorded Sep 30, 202651-2005 contacts →

Exact match

“Infos B4B is an emerging B2B Data Providers and imparts Marketing services for the customers and guides them with the popular and latest marketing trends to promote their services…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24Exact matchDelaware, United StatesHQ recorded Sep 30, 2026201-5004 contacts →

Exact match

“PaceB2B is a B2B marketing and double Opt-In database provider company that helps organizations to accelerate business to reach the next level with the best methodologies that are…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25Exact matchIrving, TX, United StatesHQ recorded Sep 30, 202651-2004 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 · Sep 30, 2026 · View company records in RevenueBase

Showing 25 of 172 B2B email append services worldwide

See the full list, filter by size, metro and specialty, and access 86 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B email append services worldwide at a glance

As of Sep 30, 2026
9.0%Verified-email coverage
5.6Average contacts per company
11-50Median size (employees)
4.7%Largest-city concentration · Bangalore
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
51
11-50
64
51-200
37
201-500
12
501-1,000
6
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 B2B email append services are linked below.
What qualifies
Company records worldwide whose business descriptions match “B2B email append services” 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 86 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 September 30, 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.

B2B email append services by location

1 lists · largest first

Every B2B email append services 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 “B2B email append services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B email append services are there worldwide?

RevenueBase identified 172 company matches for B2B email append services worldwide as of September 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?

Streamline IT Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most B2B email append services?

The United States leads with 66 companies. Every B2B email append services list by country and city is linked on this page.

Which city has the most B2B email append services?

Bangalore leads with 8 company records, followed by New York (8) and London (5).

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 86 professional contacts with verified work emails tracked across these 172 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 September 30, 2026.

Ready to reach these companies? Verified emails and direct dials for all 172 B2B email append services 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.