Company lists · Data refreshed November 2026

Top 25 Business data line providers based in Germany

RevenueBase identified 71 company matches for business data line providers associated with Germany as of November 2026 and tracks 904 professional contacts across them, including 393 with verified work emails. Berlin is the largest hub.

This list covers company matches for business data line providers associated with Germany, 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.

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 6, 2026 How this list was built
71Companies
904Contacts tracked
393Verified emails
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The 25 largest business data line providers based in Germany

Ranked by team size
Top 25 of 71 company matches for business data line providers based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchCologne, GermanyHQ recorded Nov 6, 2026201-500257 contacts →

Exact match

“Die Plusnet GmbH, eine Tochtergesellschaft der EnBW, ist ein deutsches Telekommunikationsunternehmen mit Fokus auf Geschäftskunden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchDüsseldorf, GermanyHQ recorded Nov 6, 2026201-500204 contacts →

Exact match

“Founded in 2004, we at sipgate were the first German VoIP provider and have been developing internet and telephony services ever since.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBerlin, GermanyHQ recorded Nov 6, 2026201-50037 contacts →

Exact match

“Das Büro der Zukunft.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHerrsching Am Ammersee, GermanyHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Wir sind speziell ausgebildete Dienstleister und Berater für Business-Telekommunikation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGoldbach, GermanyHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“We offer advantages of modern telephone systems and cloud solutions as well as access to landline network and internet, all from one source.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchKassel, GermanyHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“Seit der Gründung im Jahr 1997 hat sich die Netcom Kassel zu einem der wichtigsten Telekommunikationsunternehmen in Hessen entwickelt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWiesbaden, GermanyHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“WITCOM erbringt Telekommunikations- und IT-Dienstleistungen für Geschäftskunden sowie für Carrier und Service Provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSalzweg, GermanyHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“Die BTD Service GmbH wurde 1997 gegründet und ist seither ein wegweisender, inhabergeführter und herstellerunabhängiger Telekommunikationsdienstleister für Geschäftskunden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMunich, GermanyHQ recorded Nov 6, 202611-509 contacts →

Exact match

“As a network operator and service provider, MULTICONNECT improves the call journey with contact center software (iMos), telephone systems (3CX) and call numbers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBerlin, GermanyHQ recorded Nov 6, 2026201-5008 contacts →

Exact match

“Radius Connect ist seit 20 Jahren auf dem deutschen Markt als Anbieter von Telekommunikationsprodukten und -diensten für Unternehmen aller führenden Netze und Anbieter tätig.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBretzfeld, GermanyHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Vom Internet über die Festnetz- und Mobilfunktelefonie, die Telefonanlage in der Cloud, bis zur passenden und individuellen Lösung für Ihr Unternehmen – Flexibilität, die sich…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAugsburg, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Devenia Communications is a management consulting company based out of Bürgermeister-Wegele-Str.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBerlin, GermanyHQ recorded Nov 6, 20261-105 contacts →

Exact match

“optimaconnect GmbH is a company based out of Berlin, Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKiel, GermanyHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Telefonie soll Unternehmen und Kunden dienen – und nicht umgekehrt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchClaußnitz, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDetmold, GermanyHQ recorded Nov 6, 202611-504 contacts →

Exact match

“IT und TK Solutions aus der Cloud”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCottbus, GermanyHQ recorded Nov 6, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHaltern Am See, GermanyHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Seit 1996 sind wir in der Telekommunikation zuhause und begleiten unsere Filialen von Haltern am See aus.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMunich, GermanyHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Durch persönlichen Kontakt, exzellente Branchenkenntnis und ein umfassendes Serviceportfolio stärken wir Ihr Unternehmen und tragen wesentlich zu Ihrem Wachstum und Erfolg bei.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMünchen / Grasbrunn, GermanyHQ recorded Nov 6, 202611-503 contacts →

Exact match

“INTERPORT REAL GmbH, gegründet in 2002, ist ein inhabergeführtes Unternehmen mit Stammsitz in Grasbrunn bei München und Standorten in Berlin, Leipzig und Frankfurt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSchmölln, GermanyHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Ihr Business Partner für Telekommunikation seit 2005!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNeustadt An Der Weinstraße, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDiedorf, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Telefux: Your partner for telephone systems and Internet Telefux GmbH is an experienced service provider for telephone systems and telecommunications from Diedorf near Augsburg.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchGermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Der Telefonjoker ist ein Telekommunikationsunternehmen, dass sich um die Planung und Installation von Telefonanlagen, Cloud und VM IP-Telefonielösungen kümmert.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNeutraubling, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 71 business data line providers based in Germany

See the full list, filter by size, metro and specialty, and access 393 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Business data line providers based in Germany at a glance

As of Nov 6, 2026
43.5%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
9.9%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
23
51-200
5
201-500
4
501-1,000
1

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 71 companies.

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.
What qualifies
Company records associated with Germany whose business descriptions match “business data line providers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 393 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.

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 “business data line providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business data line providers are there based in Germany?

RevenueBase identified 71 company matches for business data line providers associated with Germany 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?

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

Which city has the most business data line providers?

Berlin leads with 7 company records, followed by Munich (5) and Altenstadt (2).

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 393 professional contacts with verified work emails tracked across these 71 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.

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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.