Company lists · Data refreshed September 2026

Top 25 Telecommunications cable companies based in Germany

Name: Telecommunications cable companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 94 companies tracked

RevenueBase identified 94 telecommunications cable companies headquartered in Germany as of September 2026 and tracks 1,277 professional contacts across them, including 589 with verified work emails. Hamburg is the largest hub.

This list covers telecommunications cable companies headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

94Companies

1,277Contacts tracked

589Verified emails

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The 25 largest telecommunications cable companies based in Germany

Ranked by team size

Top 25 of 94 telecommunications cable companies based in Germany, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications cable companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sipgate	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 19, 2026	201-500	201 contacts →
	Indirect evidence “Founded in 2004, we at sipgate were the first German VoIP provider and have been developing internet and telephony services ever since.” Source: RevenueBase Database · checked Sep 19, 2026
2	Netcom BW Gmbh	Indirect evidence	Ellwangen (jagst), GermanyHQ checked Sep 19, 2026	201-500	161 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
3	Goetel Gmbh	Indirect evidence	Göttingen, GermanyHQ checked Sep 19, 2026	51-200	75 contacts →
	Indirect evidence “Herzlich willkommen bei Goetel, Ihrem Göttinger Glasfaseranbieter für Telefon- und Internet!” Source: RevenueBase Database · checked Sep 19, 2026
4	Leonet	Indirect evidence	Deggendorf, GermanyHQ checked Sep 19, 2026	51-200	62 contacts →
	Indirect evidence “LEONET ist seit über 16 Jahren auf dem Breitbandmarkt aktiv und setzt sich als Pionierunternehmen für digitale Chancengleichheit in ländlichen Regionen ein.” Source: RevenueBase Database · checked Sep 19, 2026
5	Teledata Gmbh	Indirect evidence	Friedrichshafen, GermanyHQ checked Sep 19, 2026	51-200	51 contacts →
	Indirect evidence “Das TeleData Netz - das Netz der Zukunft?” Source: RevenueBase Database · checked Sep 19, 2026
6	R-Kom Gmbh	Indirect evidence	Regensburg, GermanyHQ checked Sep 19, 2026	51-200	49 contacts →
	Indirect evidence “Die R-KOM Regensburger Telekommunikationsgesellschaft mbH wurde 1997 mit dem Ziel gegründet dem Markt ein alternatives, kostengünstiges und nachhaltiges Telekommunikationsangebot…” Source: RevenueBase Database · checked Sep 19, 2026
7	Thüringer Netkom Gmbh	Indirect evidence	Erfurt, GermanyHQ checked Sep 19, 2026	51-200	41 contacts →
	Indirect evidence “Wir, die Thüringer Netkom, bringen Bewegung in Ihr Internet!” Source: RevenueBase Database · checked Sep 19, 2026
8	Deutsche Glasfaser Business	Indirect evidence	Borken, GermanyHQ checked Sep 19, 2026	51-200	41 contacts →
	Indirect evidence “Deutsche Glasfaser Business ist der Glasfaserspezialist für Geschäftskunden und Kommunalverwaltungen.” Source: RevenueBase Database · checked Sep 19, 2026
9	Dokom21	Indirect evidence	Dortmund, GermanyHQ checked Sep 19, 2026	51-200	40 contacts →
	Indirect evidence “DOKOM21 ist ein regionaler Telekommunikationsdienstleister mit Sitz in Dortmund.” Source: RevenueBase Database · checked Sep 19, 2026
10	Gelsen-Net Gmbh	Indirect evidence	Gelsenkirchen, GermanyHQ checked Sep 19, 2026	51-200	39 contacts →
	Indirect evidence “Besseres Internet mit zertifizierter Glasfaser erleben.” Source: RevenueBase Database · checked Sep 19, 2026
11	Willy.Tel Gmbh	Indirect evidence	Hamburg, GermanyHQ checked Sep 19, 2026	51-200	33 contacts →
	Indirect evidence “Wir sind ein regionales Telekommunikationsunternehmen mit Sitz in Hamburg.” Source: RevenueBase Database · checked Sep 19, 2026
12	Glasfaser Ruhr Gmbh & Co. KG	Indirect evidence	Bochum, GermanyHQ checked Sep 19, 2026	51-200	26 contacts →
	Indirect evidence “Mit der GLASFASER RUHR haben Sie einen Partner an Ihrer Seite, der über 25 Jahre Erfahrung im Aufbau, Betrieb und in Sicherung von Netzwerkinfrastrukturen mitbringt.” Source: RevenueBase Database · checked Sep 19, 2026
13	Com-In Telekommunikations Gmbh	Indirect evidence	Ingolstadt, GermanyHQ checked Sep 19, 2026	51-200	24 contacts →
	Indirect evidence “Die COM-IN ist der Glasfaserspezialist aus Ingolstadt - für Ingolstadt.” Source: RevenueBase Database · checked Sep 19, 2026
14	Stiegeler	Indirect evidence	Schönau, GermanyHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “Seit über 15 Jahren versorgt Stiegeler seine Privat- und Geschäftskunden im ländlichen Raum mit Internet, Telefon, Fernsehen und Mobilfunk.” Source: RevenueBase Database · checked Sep 19, 2026
15	Kommitt-Ratingen Gmbh	Indirect evidence	Ratingen, GermanyHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “Wir sind die KomMITT Ratingen!” Source: RevenueBase Database · checked Sep 19, 2026
16	Cableway AG	Indirect evidence	Bergisch Gladbach, GermanyHQ checked Sep 19, 2026	501-1,000	21 contacts →
	Indirect evidence “Der Trend zu mehr Mobilität und permanenter Höchstgeschwindigkeit ist ungebrochen.” Source: RevenueBase Database · checked Sep 19, 2026
17	Netcom Kassel Gesellschaft FÜR Telekommunikation MBH	Indirect evidence	Kassel, GermanyHQ checked Sep 19, 2026	51-200	18 contacts →
	Indirect evidence “Seit der Gründung im Jahr 1997 hat sich die Netcom Kassel zu einem der wichtigsten Telekommunikationsunternehmen in Hessen entwickelt.” Source: RevenueBase Database · checked Sep 19, 2026
18	RFT Kabel Brandenburg Gmbh	Indirect evidence	Brandenburg An Der Havel, GermanyHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “Das Telekommunikationsunternehmen RFT Kabel aus Brandenburg an der Havel ist Spezialist für die Planung, den Bau und die Bewirtschaftung zukunftssicherer…” Source: RevenueBase Database · checked Sep 19, 2026
19	Telemark Telekommunikationsgesellschaft Mark	Indirect evidence	Lüdenscheid, GermanyHQ checked Sep 19, 2026	51-200	14 contacts →
	Indirect evidence “Die Telemark Telekommunikationsgesellschaft Mark mbH wurde 1998 als Tochter der Stadtwerke Lüdenscheid, der Stadtwerke Iserlohn und der Stadtwerke Menden gegründet.” Source: RevenueBase Database · checked Sep 19, 2026
20	Komro Gmbh	Indirect evidence	Rosenheim, GermanyHQ checked Sep 19, 2026	51-200	10 contacts →
	Indirect evidence “komro - das kommunale Telekommunikationsunternehmen in Rosenheim wurde 1998 gegründet und bietet seinen heute über Privat- und Geschäftskunden eine Vielzahl moderner Produkte in…” Source: RevenueBase Database · checked Sep 19, 2026
21	Westkabel Gmbh APK Group	Indirect evidence	Wesel, GermanyHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “Die Westkabel GmbH installiert, modernisiert, entstört und wartet Breitbandkommunikationsnetze im Bereich Koax/Fiber und arbeitet zusammen mit verschiedenen Kabelnetzbetreiber für…” Source: RevenueBase Database · checked Sep 19, 2026
22	Kabeltec Group	Indirect evidence	Oberndorf Am Neckar, GermanyHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “In der Kabeltechnologie sind wir seit über 30 Jahren die Profis mit weltweitem Aktionsradius und Niederlassungen in über 20 Ländern.” Source: RevenueBase Database · checked Sep 19, 2026
23	Wittenberg-Net Gmbh	Indirect evidence	Wittenberg, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Als Tochterunternehmen der Stadtwerke Lutherstadt Wittenberg steht die wittenberg-net GmbH für den Glasfaserausbau in der Region sowie die Versorgung mit schnellem Internet, TV-…” Source: RevenueBase Database · checked Sep 19, 2026
24	Ridacom	Indirect evidence	Mömbris, GermanyHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “RIDACOM Medienversorgung ist Ihr Spezialist für Breitbandkabel und Satellitentechnik - und das bundesweit.” Source: RevenueBase Database · checked Sep 19, 2026
25	Glasfaser Direkt Gmbh	Indirect evidence	Cologne, GermanyHQ checked Sep 19, 2026	51-200	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: telecommunications cable companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names telecommunications cable companies.
Partial evidence: Its own public description names part of telecommunications cable companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications cable companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 94 telecommunications cable companies based in Germany

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Telecommunications cable companies based in Germany at a glance

As of Sep 19, 2026

46.1%Verified-email coverage

13.6Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · Hamburg

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 94 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among telecommunications cable companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Germany whose own description of what they do matches “telecommunications cable companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names telecommunications cable companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among telecommunications cable companies, and records with no verified work email. Companies headquartered outside Germany are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 589 across the full list. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names telecommunications cable companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many telecommunications cable companies are there based in Germany?

RevenueBase identified 94 telecommunications cable companies headquartered in Germany as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Sipgate, headquartered in Dusseldorf, tops this list with the largest team on record.

Which city has the most telecommunications cable companies?

Hamburg leads with 4 headquartered companies, followed by Dresden (3) and Berlin (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 589 verified decision-maker contacts tracked across these 94 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.