Company lists · Data refreshed September 2026

Top 25 Managed telecom service providers based in Germany

Name: Managed telecom service providers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 442 companies tracked

RevenueBase identified 442 managed telecom service providers headquartered in Germany as of September 2026 and tracks 4,768 professional contacts across them, including 2,030 with verified work emails. Berlin is the largest hub.

This list covers managed telecom service providers 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 17, 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 17, 2026 86% judged on-target in blind review

442Companies

4,768Contacts tracked

2,030Verified emails

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The 25 largest managed telecom service providers based in Germany

Ranked by team size

Top 25 of 442 managed telecom service providers based in Germany, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to managed telecom service providers: 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	Noris Network AG	Partial evidence	Nürnberg, GermanyHQ checked Sep 17, 2026	501-1,000	287 contacts →
	Partial evidence “Abgestimmt auf die Bedürfnisse mittelständischer Unternehmen bietet die noris network AG Managed IT-Services bis hin zum IT-Outsourcing in den Bereichen Internet Service Providing…” Source: RevenueBase Database · checked Sep 17, 2026
2	Plusnet Gmbh	Indirect evidence	Köln, GermanyHQ checked Sep 17, 2026	201-500	248 contacts →
	Indirect evidence “Die Plusnet GmbH, eine Tochtergesellschaft der EnBW, ist ein deutsches Telekommunikationsunternehmen mit Fokus auf Geschäftskunden.” Source: RevenueBase Database · checked Sep 17, 2026
3	Medialine Group	Indirect evidence	Bad Sobernheim, GermanyHQ checked Sep 17, 2026	501-1,000	246 contacts →
	Indirect evidence “Welcome to Medialine AG – your IT & C system house.” Source: RevenueBase Database · checked Sep 17, 2026
4	Spie ICS Spie Information & Communication Services Gmbh	Indirect evidence	Hannover, GermanyHQ checked Sep 17, 2026	1,001-5,000	212 contacts →
	Indirect evidence “Als zuverlässiger Partner mit einer breiten Technik-Expertise in den Leistungsfeldern IT Solutions, Unified Communication & Collaboration Solutions und Security Technology…” Source: RevenueBase Database · checked Sep 17, 2026
5	Sipgate	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 17, 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 17, 2026
6	Netcom BW Gmbh	Indirect evidence	Ellwangen (jagst), GermanyHQ checked Sep 17, 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 17, 2026
7	Ostertag Detewe	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 17, 2026	201-500	153 contacts →
	Indirect evidence “Transform your business DeTeWe Communications have many years of experience in delivering tailored, integrated solutions for their clients internationally 365 days a year, 24…” Source: RevenueBase Database · checked Sep 17, 2026
8	Mugler SE	Indirect evidence	Oberlungwitz, GermanyHQ checked Sep 17, 2026	501-1,000	115 contacts →
	Indirect evidence “Bei der MUGLER SE dreht sich alles um Telekommunikation.” Source: RevenueBase Database · checked Sep 17, 2026
9	S-Kon Gruppe	Indirect evidence	Hamburg, GermanyHQ checked Sep 17, 2026	501-1,000	92 contacts →
	Indirect evidence “Seit 2003 sind wir erfolgreich als Fullservice Dienstleister in der Telekommunikationsbranche tätig.” Source: RevenueBase Database · checked Sep 17, 2026
10	Gamma DE	Partial evidence	Oberkotzau, GermanyHQ checked Sep 17, 2026	51-200	67 contacts →
	Partial evidence “Die HFO Telecom GmbH verbindet modernste Technologien im Telekommunikationsbereich mit langjähriger Erfahrung.” Source: RevenueBase Database · checked Sep 17, 2026
11	Riedel Networks	Partial evidence	Butzbach, GermanyHQ checked Sep 17, 2026	51-200	60 contacts →
	Partial evidence “Riedel Networks - tailormade media & telecommunication services Riedel Networks is a privately held, global network services provider, focused on tailormade networks.” Source: RevenueBase Database · checked Sep 17, 2026
12	Brainotech IT Solutions Gmbh	Indirect evidence	Weende, GermanyHQ checked Sep 17, 2026	51-200	56 contacts →
	Indirect evidence “Brainotech IT Solutions offers new IT and network solutions to business markets across a broad variety of regulated IT support services to its global clientele.” Source: RevenueBase Database · checked Sep 17, 2026
13	Teledata Gmbh	Indirect evidence	Friedrichshafen, GermanyHQ checked Sep 17, 2026	51-200	51 contacts →
	Indirect evidence “Das TeleData Netz - das Netz der Zukunft?” Source: RevenueBase Database · checked Sep 17, 2026
14	LEW Telnet Gmbh	Indirect evidence	Neusäß, GermanyHQ checked Sep 17, 2026	51-200	47 contacts →
	Indirect evidence “Folgen Sie für Nachrichten von LEW TelNet und der LEW-Gruppe.” Source: RevenueBase Database · checked Sep 17, 2026
15	Byon Gmbh	Partial evidence	Frankfurt Am Main, GermanyHQ checked Sep 17, 2026	51-200	45 contacts →
	Partial evidence “IT Managed Services und Cloud Telefonie 2006 wurde die byon gmbh mit Sitz in Frankfurt/Main gegründet.” Source: RevenueBase Database · checked Sep 17, 2026
16	Dokom21	Indirect evidence	Dortmund, GermanyHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “DOKOM21 ist ein regionaler Telekommunikationsdienstleister mit Sitz in Dortmund.” Source: RevenueBase Database · checked Sep 17, 2026
17	Gelsen-Net Gmbh	Indirect evidence	Gelsenkirchen, GermanyHQ checked Sep 17, 2026	51-200	39 contacts →
	Indirect evidence “Besseres Internet mit zertifizierter Glasfaser erleben.” Source: RevenueBase Database · checked Sep 17, 2026
18	SH Business COM Gmbh	Indirect evidence	Herbolzheim, GermanyHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “SH business COM, zählt seit über 30 Jahren zu den größten und leistungsstärksten Kommunikationszentren in Deutschland.” Source: RevenueBase Database · checked Sep 17, 2026
19	Kevag Telekom Gmbh	Indirect evidence	Koblenz, GermanyHQ checked Sep 17, 2026	51-200	34 contacts →
	Indirect evidence “Für Unternehmen, Institutionen und öffentliche Verwaltung Die KEVAG Telekom (KTK) ist seit 1997 Ihr zuverlässiger Partner für professionelle Telekommunikationslösungen.” Source: RevenueBase Database · checked Sep 17, 2026
20	Willy.Tel Gmbh	Indirect evidence	Hamburg, GermanyHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Wir sind ein regionales Telekommunikationsunternehmen mit Sitz in Hamburg.” Source: RevenueBase Database · checked Sep 17, 2026
21	Apelby	Partial evidence	Düsseldorf, GermanyHQ checked Sep 17, 2026	51-200	32 contacts →
	Partial evidence “We are global telecommunications provider of international voice, data, messaging and outsourcing services.” Source: RevenueBase Database · checked Sep 17, 2026
22	Epsilon Telecom	Indirect evidence	Oberkotzau, GermanyHQ checked Sep 17, 2026	11-50	32 contacts →
	Indirect evidence “Aus dem Mittelstand, für den Mittelstand Wir sind die Epsilon - A Gamma company Bei uns dreht sich alles um die Themen Kommunikation und Digitalisierung.” Source: RevenueBase Database · checked Sep 17, 2026
23	Inexio	Indirect evidence	Saarlouis, GermanyHQ checked Sep 17, 2026	201-500	31 contacts →
	Indirect evidence “Seit der Gründung 2007 hat die inexio Informationstechnologie und Telekommunikation KGaA eine eigene Telekommunikations-Infrastruktur mit mehr als 2.500 Kilometern modernstem…” Source: RevenueBase Database · checked Sep 17, 2026
24	Rockenstein AG	Indirect evidence	Veitshöchheim, GermanyHQ checked Sep 17, 2026	51-200	29 contacts →
	Indirect evidence “Optimale Kundenzufriedenheit durch kompetenten, zuverlässigen und individuellen Service - das ist unser Leitspruch!” Source: RevenueBase Database · checked Sep 17, 2026
25	Bonamic Gmbh	Indirect evidence	Bochum, GermanyHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Digitale Infrastruktur muss verlässlich, sicher und flexibel sein – ohne Umwege.” Source: RevenueBase Database · checked Sep 17, 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: managed telecom service providers. 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 managed telecom service providers.
Partial evidence: Its own public description names part of managed telecom service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name managed telecom service providers. 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 442 managed telecom service providers based in Germany

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Managed telecom service providers based in Germany at a glance

As of Sep 17, 2026

42.6%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

6.1%Largest-city concentration · Berlin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

224

11-50

132

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 442 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 managed telecom service providers, 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 “managed telecom service providers”. 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 managed telecom service providers), 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 managed telecom service providers, 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, 2,030 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 17, 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.

Managed telecom service providers by metro

Managed telecom service providers in Berlin27

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 managed telecom service providers, 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 managed telecom service providers are there based in Germany?

RevenueBase identified 442 managed telecom service providers 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?

Noris Network AG, headquartered in Nurnberg, tops this list with the largest team on record.

Which city has the most managed telecom service providers?

Berlin leads with 27 headquartered companies, followed by Munchen (15) and Hamburg (14).

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 2,030 verified decision-maker contacts tracked across these 442 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 17, 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.