Company lists · Data refreshed September 2026
Top 25 Telecom network consulting firms based in Germany
RevenueBase identified 607 telecom network consulting firms headquartered in Germany as of September 2026 and tracks 6,936 professional contacts across them, including 2,765 with verified work emails. Berlin is the largest hub.
This list covers telecom network consulting firms 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 29, 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.
The 25 largest telecom network consulting firms based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 721 contacts → | ||||
Indirect evidence “Detecon makes the future possible, digital, interconnected, and human.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 248 contacts → | ||||
Indirect evidence “Die Plusnet GmbH, eine Tochtergesellschaft der EnBW, ist ein deutsches Telekommunikationsunternehmen mit Fokus auf Geschäftskunden.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 181 contacts → | ||||
Indirect evidence “Phoenix Engineering Group is the leader in the field of broadband technologies and infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 177 contacts → | ||||
Indirect evidence “Bei Insyte Deutschland arbeiten wir daran, unseren Kunden qualitativ hochwertige Dienstleistungen im Bereich der Installation, des Betriebs und der Wartung von Netzwerken und…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 172 contacts → | ||||
Indirect evidence “Willkommen bei der TRIOPT GmbH – Ihrem technischen Dienstleister im Bereich Planung, Realisierung und Optimierung im Funk- und Festnetz.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 134 contacts → | ||||
Indirect evidence “WER WIR SIND Die Circet Deutschland SE ist ein Unternehmen der Circet Group, dem führenden weltweiten Dienstleister für den Aufbau und die Wartung von…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 115 contacts → | ||||
Indirect evidence “Bei der MUGLER SE dreht sich alles um Telekommunikation.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 108 contacts → | ||||
Strong evidence “m3 management consulting is a consultancy focused around the network industry (such as utilities and telecommunications), that combines traditional management consulting and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 101 contacts → | ||||
Indirect evidence “Digitalisierungsstrategien, Glasfaserausbau, 5G-Netze und Energiewende: Wir bringen uns aktiv für die Zukunft ein.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 94 contacts → | ||||
Indirect evidence “aconnic has emerged from the UET Group and its operating companies and brands including albis-elcon, SUCONI, Albis Engineering and Albis Technologies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 93 contacts → | ||||
Partial evidence “Xantaro specializes in technologies, software and services for Carriers, ISPs, Hosting and Cloud Providers as well as for Operators of Data Centres and Campus Networks.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 92 contacts → | ||||
Indirect evidence “Seit 2003 sind wir erfolgreich als Fullservice Dienstleister in der Telekommunikationsbranche tätig.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 85 contacts → | ||||
Indirect evidence “Grupo Zener ist seit über 35 Jahren eine der führenden Anlagenbaufirmen in den Bereichen Mobilfunk, Glasfaserinstallation und erneuerbare Energien in spanischsprechenden Märkten…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 71 contacts → | ||||
Partial evidence “quattron is an internationally active management and technology consulting firm specializing in strategic infrastructure management.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 71 contacts → | ||||
Partial evidence “Fichtner IT Consulting GmbH mit Stammsitz in Stuttgart und Niederlassungen in Berlin, Dresden und Mannheim ist das IT-Kompetenzzentrum des weltweit tätigen Ingenieurdienstleisters…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 68 contacts → | ||||
Indirect evidence “Als Firmengruppe gemeinsam stark: Mit mehr als 2.700 Mitarbeitenden an über 40 Standorten sind wir deutschlandweit der führende Dienstleister für die Telekommunikations- und…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 68 contacts → | ||||
Indirect evidence “Als mittelständisches Unternehmen in der Telekommunikationsbranche sind wir mit mehr als 150 Mitarbeitern und über 30 Jahren Erfahrung ein namhafter Dienstleister im deutschen…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 67 contacts → | ||||
Partial evidence “Die HFO Telecom GmbH verbindet modernste Technologien im Telekommunikationsbereich mit langjähriger Erfahrung.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 62 contacts → | ||||
Indirect evidence “Als eines der führenden Unternehmen in den Bereichen Engineering und Operations sorgen wir bundesweit sowie auch international für funktionierende Infrastrukturen im Festnetz- und…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 55 contacts → | ||||
Indirect evidence “Sinnwell GmbH ist ein schnell wachsendes Unternehmen, welches für Generalunternehmer im Mobilfunkbereich Dienstleistungen für den Netzaufbau erbringt.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 50 contacts → | ||||
Indirect evidence “Die nächste wichtige IT-Entscheidung steht an?” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 contacts → | ||||
Partial evidence “Networks are the backbone of modern organizations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 46 contacts → | ||||
Strong evidence “EZcon Network GmbH is one of the leading consulting companies in the area of information technology (IT).” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 43 contacts → | ||||
Indirect evidence “About BITConEx Since 2008, BITConEx has been synonymous with excellent IT architectures utilising the latest technologies and standards, as well as in-depth process expertise…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: telecom network consulting firms. 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 telecom network consulting firms.
- Partial evidence
- Its own public description names part of telecom network consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name telecom network consulting firms. 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 607 telecom network consulting firms based in Germany
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Telecom network consulting firms based in Germany at a glance
As of Sep 29, 2026Companies by employee count
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 607 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 telecom network consulting firms, 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 “telecom network consulting firms”. 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 telecom network consulting firms), 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 telecom network consulting firms, 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, 2,765 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 29, 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.
Telecom network consulting firms by metro
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 telecom network consulting firms, 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 telecom network consulting firms are there based in Germany?
RevenueBase identified 607 telecom network consulting firms 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?
Detecon, headquartered in Cologne, tops this list with the largest team on record.
Which city has the most telecom network consulting firms?
Berlin leads with 38 headquartered companies, followed by Munich (33) and Hamburg (25).
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 2,765 verified decision-maker contacts tracked across these 607 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 29, 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.
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