Company lists · Data refreshed September 2026

Top 25 Incumbent local exchange carriers based in Germany

RevenueBase identified 73 company matches for incumbent local exchange carriers associated with Germany as of September 2026 and tracks 1,823 professional contacts across them, including 1,026 with verified work emails. Cologne is the largest hub.

This list covers company matches for incumbent local exchange carriers 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 September 20, 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 Sep 20, 2026 How this list was built
73Companies
1,823Contacts tracked
1,026Verified emails
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The 25 largest incumbent local exchange carriers based in Germany

Ranked by team size
Top 25 of 73 company matches for incumbent local exchange carriers based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchDüsseldorf, GermanyHQ recorded Sep 20, 2026201-500201 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 · Sep 20, 2026 · View company records in RevenueBase
2Exact matchEllwangen (jagst), GermanyHQ recorded Sep 20, 2026201-500161 contacts →

Exact match

“Schnelles Internet für die Region #vernetzt - mit Highspeed in Verbindung bleiben Die NetCom BW GmbH mit Sitz in Ellwangen wurde 2014 gegründet und ist eine Konzerngesellschaft…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchKiel, GermanyHQ recorded Sep 20, 2026201-50088 contacts →

Exact match

“TNG wurde 1997 in Kiel gegründet und hat sich von einem regionalen Anbieter zu einem der führenden Telekommunikationsanbieter Deutschlands entwickelt.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchGöttingen, GermanyHQ recorded Sep 20, 202651-20075 contacts →

Exact match

“Herzlich willkommen bei Goetel, Ihrem Göttinger Glasfaseranbieter für Telefon- und Internet!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchDeggendorf, GermanyHQ recorded Sep 20, 202651-20062 contacts →

Exact match

“LEONET ist seit über 16 Jahren auf dem Breitbandmarkt aktiv und setzt sich als Pionierunternehmen für digitale Chancengleichheit in ländlichen Regionen ein.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchFriedrichshafen, GermanyHQ recorded Sep 20, 202651-20051 contacts →

Exact match

“Das TeleData Netz - das Netz der Zukunft?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchGelsenkirchen, GermanyHQ recorded Sep 20, 202651-20039 contacts →

Exact match

“Besseres Internet mit zertifizierter Glasfaser erleben.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchHamburg, GermanyHQ recorded Sep 20, 202651-20033 contacts →

Exact match

“Wir sind ein regionales Telekommunikationsunternehmen mit Sitz in Hamburg.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchIngolstadt, GermanyHQ recorded Sep 20, 202651-20024 contacts →

Exact match

“Die COM-IN ist der Glasfaserspezialist aus Ingolstadt - für Ingolstadt.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchSchönau, GermanyHQ recorded Sep 20, 202651-20022 contacts →

Exact match

“Seit über 15 Jahren versorgt Stiegeler seine Privat- und Geschäftskunden im ländlichen Raum mit Internet, Telefon, Fernsehen und Mobilfunk.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchRatingen, GermanyHQ recorded Sep 20, 202651-20022 contacts →

Exact match

“Wir sind die KomMITT Ratingen!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchAltenstadt, GermanyHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“Hallo!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchGoldbach, GermanyHQ recorded Sep 20, 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 · Sep 20, 2026 · View company records in RevenueBase
14Exact matchKassel, GermanyHQ recorded Sep 20, 202651-20018 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 · Sep 20, 2026 · View company records in RevenueBase
15Exact matchRosenheim, GermanyHQ recorded Sep 20, 202651-20010 contacts →

Exact match

“komro - das kommunale Telekommunikationsunternehmen in Rosenheim wurde 1998 gegründet und bietet seinen heute über Privat- und Geschäftskunden eine Vielzahl moderner Produkte in…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchHamm, GermanyHQ recorded Sep 20, 202611-507 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchBretzfeld, GermanyHQ recorded Sep 20, 202611-506 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 · Sep 20, 2026 · View company records in RevenueBase
18Exact matchCologne, GermanyHQ recorded Sep 20, 202651-2005 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchGarbsen, GermanyHQ recorded Sep 20, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchGeilenkirchen, GermanyHQ recorded Sep 20, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchSankt Leon-rot, GermanyHQ recorded Sep 20, 202611-504 contacts →

Exact match

“KurpfalzTEL – Wir bringen die digitale Zukunft in die Region Ob Zuhause oder im Business: Wir sorgen für lichtschnelles Glasfaser-Internet, moderne Telefonie und Kabel- und IPTV –…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchPassau, GermanyHQ recorded Sep 20, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchHaltern Am See, GermanyHQ recorded Sep 20, 202611-503 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 · Sep 20, 2026 · View company records in RevenueBase
24Exact matchWörth, GermanyHQ recorded Sep 20, 202611-503 contacts →

Exact match

“Lokaler Telekom-Partner für Geschäfts- und Privatkunden in Wörth am Main, Bad König, Reichelsheim und Sulzbach.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchAltomünster, GermanyHQ recorded Sep 20, 20261-101 contacts →

Exact match

“Wir sind Telekommunikations-Anbieter und haben ein eigenes FTTH-Glasfasernetz in 8 Gemeinden zwischen Odelzhausen und Schrobenhausen!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 73 incumbent local exchange carriers based in Germany

See the full list, filter by size, metro and specialty, and access 1,026 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Incumbent local exchange carriers based in Germany at a glance

As of Sep 20, 2026
56.3%Verified-email coverage
25.0Average contacts per company
1-10Median size (employees)
5.5%Largest-city concentration · Cologne
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
41
11-50
12
51-200
12
201-500
3
1,001-5,000
2
10001+
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 73 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 “incumbent local exchange carriers” 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 1,026 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 20, 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 “incumbent local exchange carriers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many incumbent local exchange carriers are there based in Germany?

RevenueBase identified 73 company matches for incumbent local exchange carriers associated with Germany 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?

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

Which city has the most incumbent local exchange carriers?

Cologne leads with 4 company records, followed by Berlin (2) and Dusseldorf (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 1,026 professional contacts with verified work emails tracked across these 73 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 20, 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.