Company lists · Data refreshed November 2026

Top 25 Telecommunications maintenance services based in Germany

RevenueBase identified 126 company matches for telecommunications maintenance services associated with Germany as of November 2026 and tracks 1,948 professional contacts across them, including 423 with verified work emails. Hamburg is the largest hub.

This list covers company matches for telecommunications maintenance services 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
126Companies
1,948Contacts tracked
423Verified emails
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The 25 largest telecommunications maintenance services based in Germany

Ranked by team size
Top 25 of 126 company matches for telecommunications maintenance services 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 matchOberlungwitz, GermanyHQ recorded Nov 6, 2026501-1,000124 contacts →

Exact match

“Bei der MUGLER SE dreht sich alles um Telekommunikation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBochum, GermanyHQ recorded Nov 6, 2026201-50067 contacts →

Exact match

“Als eines der führenden Unternehmen in den Bereichen Engineering und Operations sorgen wir bundesweit sowie auch international für funktionierende Infrastrukturen im Festnetz- und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDortmund, GermanyHQ recorded Nov 6, 2026201-50063 contacts →

Exact match

“GfTD Services bietet bundesweit erstklassige Serviceleistungen in den Bereichen Telekommunikation, eMobility und New Energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMunich, GermanyHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Sinnwell GmbH ist ein schnell wachsendes Unternehmen, welches für Generalunternehmer im Mobilfunkbereich Dienstleistungen für den Netzaufbau erbringt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDülmen, GermanyHQ recorded Nov 6, 2026201-50046 contacts →

Exact match

“Die STF TeleConsult bietet ihren Kunden umfassende 360-Grad Telekommunikationsdienstleistungen: von der Messung, über Planung, Realisierung, Inbetriebnahme und Abnahme.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSchlüchtern, GermanyHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Globalcarrier – Ganzheitliche Lösungen aus einer Hand Die globalcarrier telecom GmbH ist mit über 90 mitarbeitenden Menschen und 6 Niederlassungen in Hessen und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNörten-hardenberg, GermanyHQ recorded Nov 6, 2026201-50033 contacts →

Exact match

“CTDI Europe Group ist ein Full-Service-Provider spezialisiert auf Instandsetzung, Logistik und Engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHessen - Dreieich, GermanyHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Wir bieten Support für Router, Switches, Firewalls, Server, Wireless, Migration uvm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEngelsberg, GermanyHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“ConsKom steht für Consulting & Service im Bereich Telekommunikationsnetzwerke & – infrastrukturen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBergisch Gladbach, GermanyHQ recorded Nov 6, 2026501-1,00021 contacts →

Exact match

“Der Trend zu mehr Mobilität und permanenter Höchstgeschwindigkeit ist ungebrochen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMaintal, GermanyHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Inter Data Systems GmbH ist ein seit 1972 auf Telekommunikation und IT spezialisiertes Technologieunternehmen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“Die mobil-line GmbH ist ein familiengeführtes Unternehmen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGladau, GermanyHQ recorded Nov 6, 20261-1014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBonn, GermanyHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Installations- und Wartungsdienste für Glasfasernetze”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLeipzig, GermanyHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Unser Geschäftsbereich Telekommunikationsdienste umfasst die Kernkompetenzen Planung, Implementierung und Wartung von Festnetz- und Mobilfunknetzen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHeubach, GermanyHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Hallo, wir sind die carrierwerke!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCologne, GermanyHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Die Field Service Deutschland FSD GmbH ist ein Unternehmen der freenet AG.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Bundesweiter 24h Fieldservice -Installation und Wartung von ADSL, VDSL, SDSL, SHDSL -Installation, Entstörung und Wartung von Kassensysteme -Installation und Wartung von…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchEichenzell, GermanyHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“Kernkompetenz unseres Unternehmens ist die Erbringung von Montage- und Lieferleistungen, insbesondere im Bereich der Fernmeldetechnik und dem damit verbundenen Kabelbau, die…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact match04319 Leipzig, GermanyHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“Unsere Leistungen im Kurzüberblick: Telekommunikation - Ob die Errichtung der Infrastruktur, Installation von Richtfunk- und Systemtechnik oder Wartung und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMulheim An Der Ruhr, GermanyHQ recorded Nov 6, 2026201-5008 contacts →

Exact match

“Der inzwischen auf über 200 Mitarbeiter gewachsene Handels- und Handwerksbetrieb besticht durch Qualität, Professionalität und dem Willen den Kunden immer zu 100% zufrieden zu…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchZwickau, GermanyHQ recorded Nov 6, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNeuss, GermanyHQ recorded Nov 6, 202651-2006 contacts →

Exact match

“Die Ercon GmbH hat sich als erfahrener Dienstleister im Bereich der Telekommunikation auf die Einrichtung von Sendeanlagen für diverse Mobilfunkanbieter zur Sicherstellung einer…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWinnenden, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

“T.E.D.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchRecklinghausen, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

“EWP-Management GmbH & Co.”

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

Showing 25 of 126 telecommunications maintenance services based in Germany

See the full list, filter by size, metro and specialty, and access 423 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecommunications maintenance services based in Germany at a glance

As of Nov 6, 2026
21.7%Verified-email coverage
15.5Average contacts per company
11-50Median size (employees)
6.3%Largest-city concentration · Hamburg
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
57
11-50
27
51-200
16
201-500
12
501-1,000
2
1,001-5,000
1
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 126 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 “telecommunications maintenance 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. 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 423 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 “telecommunications maintenance services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecommunications maintenance services are there based in Germany?

RevenueBase identified 126 company matches for telecommunications maintenance services 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?

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

Which city has the most telecommunications maintenance services?

Hamburg leads with 8 company records, followed by Berlin (7) and Bochum (4).

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 423 professional contacts with verified work emails tracked across these 126 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.