Company lists · Data refreshed November 2026
Top 25 Data appending services worldwide
RevenueBase identified 129 company matches for data appending services worldwide as of November 2026 and tracks 821 professional contacts across them, including 84 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for data appending 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 November 6, 2026. Country and city lists for data appending 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.
The 25 largest data appending services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 144 contacts → | ||||
Exact match “eCore provides a validation-first data quality layer for GTM teams, cleaning, validating, enriching and monitoring contact and account CRM data so sales, marketing, RevOps and AI…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 26 contacts → | ||||
Exact match “At Leads Campaign, we are redefining the data industry with a laser focus on quality over quantity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 16 contacts → | ||||
Exact match “RampedUp is a trusted contact data solution for global marketers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 13 contacts → | ||||
Exact match “Gilbert Data is one of the peerless and believed services provider in appending services and other services as well i.e.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 12 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 10 contacts → | ||||
Exact match “Janvier 2025 : Data, leader français de la donnée valorisée, annonce l’acquisition de SmartData for Lead (SDFL), acteur majeur du traitement et de la qualification des données…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 10 contacts → | ||||
Exact match “We are a small but dedicated team of data engineers, marketing professionals, and communicators, passionate about affordable marketing data, obsessed with our clients’ success…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 10 contacts → | ||||
Exact match “At Accurate Append – we live and breathe data.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 10 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 9 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 9 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 6 contacts → | ||||
Exact match “In other words “the mister gadget” of Data enrichment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 6 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 5 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 5 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 5 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “Blue Tortoise provides intelligent data analysis, sourcing and management to help B2B organisations fulfil their sales and marketing strategies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match “AggKnowledge is a data enrichment solution for market research, recruiters, alumni offices, non-profits, and sales & marketing teams.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 4 contacts → | ||||
Exact match “Data Enhancement Solutions was formed by 3 people with a combined experience of over 50 years in the data industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 4 contacts → | ||||
Exact match “Wyvern DM is a leading direct marketing services company dedicated to making the lives of marketers easier and more profitable.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “BrooksIM is an integrated marketing firm that specializes in cleaning and appending customer databases, as well as discovering client target markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “MailingInfoUSA offers 360-degree data-driven intelligence and solutions for successful sales and marketing campaigns which eventually empower business and drive sales and profits.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match “DataPages is part of a multi national data enhancement brand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match “Oblong UK was formed in 2006, providing SIC coding and data cleaning services, but has since evolved to provide a full spectrum of business data services.” 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 “data appending services”. 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 129 data appending services worldwide
See the full list, filter by size, metro and specialty, and access 84 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Data appending services 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 data appending services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “data appending 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 84 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.
Data appending services by location
1 lists · largest firstEvery Data appending 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 “data appending services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many data appending services are there worldwide?
RevenueBase identified 129 company matches for data appending services 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?
ECORE tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most data appending services?
The United States leads with 73 companies. Every data appending services list by country and city is linked on this page.
Which city has the most data appending services?
New York leads with 7 company records, followed by Bangalore (6) and Mumbai (6).
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 84 professional contacts with verified work emails tracked across these 129 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 129 data appending 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.
More company lists
Company intelligence · public preview
Top 25 data appending services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 129 matching company records for data appending services worldwide, with 821 tracked contacts and 84 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 data appending services 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 |  ECOREecoreservice.comHQ: Pittsburgh, PA, United StatesReported employees: 51-200 | Pittsburgh, PA, United States | 51-200 | Exact match | 144 contacts → |
“eCore provides a validation-first data quality layer for GTM teams, cleaning, validating, enriching and monitoring contact and account CRM data so sales, marketing, RevOps and AI…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Leads Campaignleads-campaign.comHQ: Indore, IndiaReported employees: 11-50 | Indore, India | 11-50 | Exact match | 26 contacts → |
“At Leads Campaign, we are redefining the data industry with a laser focus on quality over quantity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Rampedup Global Data Solutionsrampedup.ioHQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 16 contacts → |
“RampedUp is a trusted contact data solution for global marketers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Gilbert Data LLCgilbertdb.comHQ: Las Vegas, NV, United StatesReported employees: 11-50 | Las Vegas, NV, United States | 11-50 | Exact match | 13 contacts → |
“Gilbert Data is one of the peerless and believed services provider in appending services and other services as well i.e.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Global Email Listsglobalemaillists.comHQ: Beaverton, OR, United StatesReported employees: 51-200 | Beaverton, OR, United States | 51-200 | Exact match | 12 contacts → |
“Since the inception Global Email Lists is committed to provide quality e-mail marketing and its related services to clients worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Smartdata For Leadsmartdataforlead.comHQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 10 contacts → |
“Janvier 2025 : Data, leader français de la donnée valorisée, annonce l’acquisition de SmartData for Lead (SDFL), acteur majeur du traitement et de la qualification des données…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Datazappdatazapp.comHQ: Ormond Beach, FL, United StatesReported employees: 11-50 | Ormond Beach, FL, United States | 11-50 | Exact match | 10 contacts → |
“We are a small but dedicated team of data engineers, marketing professionals, and communicators, passionate about affordable marketing data, obsessed with our clients’ success…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Accurate Appendaccurateappend.comHQ: Bellevue, WA, United StatesReported employees: 1-10 | Bellevue, WA, United States | 1-10 | Exact match | 10 contacts → |
“At Accurate Append – we live and breathe data.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  United & Sterlingunitedandsterling.comHQ: Richardson, TX, United StatesReported employees: 201-500 | Richardson, TX, United States | 201-500 | Exact match | 10 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Data Marketers Groupdatamarketersgroup.comHQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 9 contacts → |
“Data Marketers Group is a leading B2B data-driven marketing service company – specialized in providing quality databases at competitive prices.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Datagenicsdatagenicsinc.comHQ: Atlanta, United StatesReported employees: 11-50 | Atlanta, United States | 11-50 | Exact match | 9 contacts → |
“About Datagenics is one of the fastest growing market specialist in delivering Sales leads, email/data appending, application development and online marketing solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | VISUMvisum.run HQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 6 contacts → |
“In other words “the mister gadget” of Data enrichment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Infinity Digisolutionsinfinitydigisolutions.comHQ: Henderson, NV, United StatesReported employees: 11-50 | Henderson, NV, United States | 11-50 | Exact match | 6 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Fountmediafountmedia.comHQ: Monmouth Junction, NJ, United StatesReported employees: 51-200 | Monmouth Junction, NJ, United States | 51-200 | Exact match | 5 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Select Systems, INCselectsystemsinc.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 5 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 |  Originlists Data Solutions, INCoriginlists.comHQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 5 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Blue Tortoise Limitedblue-tortoise.comHQ: Newbury, United KingdomReported employees: 1-10 | Newbury, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Blue Tortoise provides intelligent data analysis, sourcing and management to help B2B organisations fulfil their sales and marketing strategies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Aggknowledgeaggknowledge.aiHQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 4 contacts → |
“AggKnowledge is a data enrichment solution for market research, recruiters, alumni offices, non-profits, and sales & marketing teams.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Data Enhancement Solutions LTDdataenhancementsolutions.co.ukHQ: Corsham, United KingdomReported employees: 1-10 | Corsham, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Data Enhancement Solutions was formed by 3 people with a combined experience of over 50 years in the data industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Wyverndmwyverndm.co.ukHQ: Ely, United KingdomReported employees: 11-50 | Ely, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Wyvern DM is a leading direct marketing services company dedicated to making the lives of marketers easier and more profitable.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Brooks Integrated Marketing Brooksimbrooksim.comHQ: Bonita Springs, FL, United StatesReported employees: 11-50 | Bonita Springs, FL, United States | 11-50 | Exact match | 3 contacts → |
“BrooksIM is an integrated marketing firm that specializes in cleaning and appending customer databases, as well as discovering client target markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Appendsolutionsappendsolutions.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 |  Mailinginfousamailinginfousa.comHQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 2 contacts → |
“MailingInfoUSA offers 360-degree data-driven intelligence and solutions for successful sales and marketing campaigns which eventually empower business and drive sales and profits.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Datapages Australia PTY LTDdatapages.com.auHQ: Springfield Central, AustraliaReported employees: 11-50 | Springfield Central, Australia | 11-50 | Exact match | 2 contacts → |
“DataPages is part of a multi national data enhancement brand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Oblong UKoblonguk.comHQ: Southam, United KingdomReported employees: 11-50 | Southam, United Kingdom | 11-50 | Exact match | 2 contacts → |
“Oblong UK was formed in 2006, providing SIC coding and data cleaning services, but has since evolved to provide a full spectrum of business data services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 129 company matches
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Data appending services: 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
127 records in the displayed employee bands.
2 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 129 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 ↗
Data appending services by location
1 lists · largest firstEvery Data appending services 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 data appending services?
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 data appending services did RevenueBase find worldwide?
The saved snapshot records 129 matching company records, 821 tracked contacts and 84 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 data appending services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/data-appending-services.
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 data appending services worldwide
RevenueBase records 129 matching company records for data appending services worldwide, with 821 tracked contacts and 84 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 data appending services 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 | ECOREecoreservice.com HQ: Pittsburgh, PA, United StatesReported employees: 51-200 | Pittsburgh, PA, United States | 51-200 | Exact match | 144 contacts → |
“eCore provides a validation-first data quality layer for GTM teams, cleaning, validating, enriching and monitoring contact and account CRM data so sales, marketing, RevOps and AI…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Leads Campaignleads-campaign.com HQ: Indore, IndiaReported employees: 11-50 | Indore, India | 11-50 | Exact match | 26 contacts → |
“At Leads Campaign, we are redefining the data industry with a laser focus on quality over quantity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Rampedup Global Data Solutionsrampedup.io HQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 16 contacts → |
“RampedUp is a trusted contact data solution for global marketers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Gilbert Data LLCgilbertdb.com HQ: Las Vegas, NV, United StatesReported employees: 11-50 | Las Vegas, NV, United States | 11-50 | Exact match | 13 contacts → |
“Gilbert Data is one of the peerless and believed services provider in appending services and other services as well i.e.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Global Email Listsglobalemaillists.com HQ: Beaverton, OR, United StatesReported employees: 51-200 | Beaverton, OR, United States | 51-200 | Exact match | 12 contacts → |
“Since the inception Global Email Lists is committed to provide quality e-mail marketing and its related services to clients worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Smartdata For Leadsmartdataforlead.com HQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 10 contacts → |
“Janvier 2025 : Data, leader français de la donnée valorisée, annonce l’acquisition de SmartData for Lead (SDFL), acteur majeur du traitement et de la qualification des données…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Datazappdatazapp.com HQ: Ormond Beach, FL, United StatesReported employees: 11-50 | Ormond Beach, FL, United States | 11-50 | Exact match | 10 contacts → |
“We are a small but dedicated team of data engineers, marketing professionals, and communicators, passionate about affordable marketing data, obsessed with our clients’ success…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Accurate Appendaccurateappend.com HQ: Bellevue, WA, United StatesReported employees: 1-10 | Bellevue, WA, United States | 1-10 | Exact match | 10 contacts → |
“At Accurate Append – we live and breathe data.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | United & Sterlingunitedandsterling.com HQ: Richardson, TX, United StatesReported employees: 201-500 | Richardson, TX, United States | 201-500 | Exact match | 10 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Data Marketers Groupdatamarketersgroup.com HQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 9 contacts → |
“Data Marketers Group is a leading B2B data-driven marketing service company – specialized in providing quality databases at competitive prices.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Datagenicsdatagenicsinc.com HQ: Atlanta, United StatesReported employees: 11-50 | Atlanta, United States | 11-50 | Exact match | 9 contacts → |
“About Datagenics is one of the fastest growing market specialist in delivering Sales leads, email/data appending, application development and online marketing solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | VISUMvisum.run HQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 6 contacts → |
“In other words “the mister gadget” of Data enrichment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Infinity Digisolutionsinfinitydigisolutions.com HQ: Henderson, NV, United StatesReported employees: 11-50 | Henderson, NV, United States | 11-50 | Exact match | 6 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Fountmediafountmedia.com HQ: Monmouth Junction, NJ, United StatesReported employees: 51-200 | Monmouth Junction, NJ, United States | 51-200 | Exact match | 5 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Select Systems, INCselectsystemsinc.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 5 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Originlists Data Solutions, INCoriginlists.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 5 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Blue Tortoise Limitedblue-tortoise.com HQ: Newbury, United KingdomReported employees: 1-10 | Newbury, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Blue Tortoise provides intelligent data analysis, sourcing and management to help B2B organisations fulfil their sales and marketing strategies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Aggknowledgeaggknowledge.ai HQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 4 contacts → |
“AggKnowledge is a data enrichment solution for market research, recruiters, alumni offices, non-profits, and sales & marketing teams.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Data Enhancement Solutions LTDdataenhancementsolutions.co.uk HQ: Corsham, United KingdomReported employees: 1-10 | Corsham, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Data Enhancement Solutions was formed by 3 people with a combined experience of over 50 years in the data industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Wyverndmwyverndm.co.uk HQ: Ely, United KingdomReported employees: 11-50 | Ely, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Wyvern DM is a leading direct marketing services company dedicated to making the lives of marketers easier and more profitable.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Brooks Integrated Marketing Brooksimbrooksim.com HQ: Bonita Springs, FL, United StatesReported employees: 11-50 | Bonita Springs, FL, United States | 11-50 | Exact match | 3 contacts → |
“BrooksIM is an integrated marketing firm that specializes in cleaning and appending customer databases, as well as discovering client target markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Appendsolutionsappendsolutions.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | Mailinginfousamailinginfousa.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 2 contacts → |
“MailingInfoUSA offers 360-degree data-driven intelligence and solutions for successful sales and marketing campaigns which eventually empower business and drive sales and profits.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Datapages Australia PTY LTDdatapages.com.au HQ: Springfield Central, AustraliaReported employees: 11-50 | Springfield Central, Australia | 11-50 | Exact match | 2 contacts → |
“DataPages is part of a multi national data enhancement brand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Oblong UKoblonguk.com HQ: Southam, United KingdomReported employees: 11-50 | Southam, United Kingdom | 11-50 | Exact match | 2 contacts → |
“Oblong UK was formed in 2006, providing SIC coding and data cleaning services, but has since evolved to provide a full spectrum of business data services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 129 company matches
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Data appending services: 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
127 records in the displayed employee bands.
2 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 129 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 ↗
Data appending services by location
1 lists · largest firstEvery Data appending services 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 data appending services?
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 data appending services did RevenueBase find worldwide?
The saved snapshot records 129 matching company records, 821 tracked contacts and 84 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 data appending services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/data-appending-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗