Company lists · Data refreshed September 2026

Top 25 Aerial fiber optic cable suppliers based in Germany

RevenueBase identified 187 aerial fiber optic cable suppliers headquartered in Germany as of September 2026 and tracks 2,306 professional contacts across them, including 954 with verified work emails. Berlin is the largest hub.

This list covers aerial fiber optic cable suppliers 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
187Companies
2,306Contacts tracked
954Verified emails
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The 25 largest aerial fiber optic cable suppliers based in Germany

Ranked by team size
Top 25 of 187 aerial fiber optic cable suppliers 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 aerial fiber optic cable suppliers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMünchen, GermanyHQ checked Sep 19, 2026501-1,000443 contacts →

Indirect evidence

“Als führender Glasfaseranbieter Bayerns verbindet M-net seit 1996 Menschen und Unternehmen in Bayern, im Großraum Ulm und im hessischen Main-Kinzig-Kreis mit zuverlässiger…”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceAugsburg, GermanyHQ checked Sep 19, 2026501-1,000125 contacts →

Partial evidence

“Since 1991, Rosenberger Optical Solutions & Infrastructure (Rosenberger OSI) has been a recognized expert for fiber-based connectivity, cabling solutions and infrastructure…”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceDüsseldorf, GermanyHQ checked Sep 19, 202651-20088 contacts →

Partial evidence

Fiber Experts Deutschland GmbH ist ein auf Glasfaserausbau spezialisiertes Bauunternehmen mit Standorten in Düsseldorf und Köln.”

Source: RevenueBase Database · checked Sep 19, 2026
4Strong evidenceHorstmar, GermanyHQ checked Sep 19, 20261,001-5,00082 contacts →

Strong evidence

“We plan, develop and build fiber optic networks.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceGarmisch-partenkirchen, GermanyHQ checked Sep 19, 2026201-50078 contacts →

Indirect evidence

“for technical system solutions Langmatz is an international industrial company specialising in plastic and metal processing based in Garmisch-Partenkirchen, Germany.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceGöttingen, GermanyHQ checked Sep 19, 202651-20075 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceDeggendorf, GermanyHQ checked Sep 19, 202651-20062 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
8Partial evidenceStolberg, GermanyHQ checked Sep 19, 202651-20057 contacts →

Partial evidence

“For over 100 years,"KERPEN" has stood for the highest cable quality made in Germany.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceFriedrichshafen, GermanyHQ checked Sep 19, 202651-20051 contacts →

Indirect evidence

“Das TeleData Netz - das Netz der Zukunft?”

Source: RevenueBase Database · checked Sep 19, 2026
10Strong evidenceHamm, GermanyHQ checked Sep 19, 202651-20045 contacts →

Strong evidence

“MICROSENS is one of the world’s leading manufacturers of fiber optic transmission systems.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceBorken, GermanyHQ checked Sep 19, 202651-20041 contacts →

Indirect evidence

“Deutsche Glasfaser Business ist der Glasfaserspezialist für Geschäftskunden und Kommunalverwaltungen.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceBargteheide, GermanyHQ checked Sep 19, 202651-20033 contacts →

Indirect evidence

“Die Opternus GmbH ist Marktführer in Deutschland im Bereich der Glasfaser Spleiss, Einblass- und Messtechnik für den Breitbandausbau – TECHNIK DIE VERBINDET.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceBodman, GermanyHQ checked Sep 19, 202651-20033 contacts →

Indirect evidence

“Als einer der führenden Hersteller von Systemlösungen im Bereich der Breitbandübertragung für Kabel, Satelliten- und Glasfaser-Infrastrukturen stehen wir von DELTA Electronics für…”

Source: RevenueBase Database · checked Sep 19, 2026
14Strong evidenceNordhorn, GermanyHQ checked Sep 19, 2026201-50030 contacts →

Strong evidence

“The company Krafteam GmbH is a leading enterprise in the field of fiber optic expansion, cable laying, HDD horizontal directional drilling, and civil engineering.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceWesel, GermanyHQ checked Sep 19, 2026201-50028 contacts →

Indirect evidence

“Wir sind eine Unternehmensgruppe welches sich auf Coax/LWL Gebäudeverkabelung, Service & Wartung, Infratechnik, Tiefbau, Kabel & Fernmeldebau sowie Kupfer und Glasfaserbau &…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceLottstetten, GermanyHQ checked Sep 19, 202651-20027 contacts →

Indirect evidence

“Unsere Vision: Wir vernetzen Menschen, schaffen Vertrauen und sorgen für eine bessere Lebensqualität durch die Balance zwischen Mensch, Arbeitskultur und Umwelt.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceBochum, GermanyHQ checked Sep 19, 202651-20027 contacts →

Indirect evidence

“eku Kabel & Systeme GmbH & Co.”

Source: RevenueBase Database · checked Sep 19, 2026
18Strong evidenceHamburg, GermanyHQ checked Sep 19, 20261-1025 contacts →

Strong evidence

“CWP Glasfasertechnik is your trusted partner for comprehensive fiber optic network solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceGoldbach, GermanyHQ checked Sep 19, 202651-20024 contacts →

Indirect evidence

“Glasfaserausbau, Wartung und Reparaturen, Bau.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceIngolstadt, GermanyHQ checked Sep 19, 202651-20024 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceRatingen, GermanyHQ checked Sep 19, 202651-20022 contacts →

Indirect evidence

“Wir sind die KomMITT Ratingen!”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceBerlin, GermanyHQ checked Sep 19, 202611-5022 contacts →

Indirect evidence

“Willkommen bei der FOC - fibre optical components GmbH!”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceJena, GermanyHQ checked Sep 19, 202651-20021 contacts →

Partial evidence

“j-fiber GmbH is one of Europe’s leading providers of optical fibers for data transmission and the only industrial-scale manufacturer of fibers in Germany.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceKöln, GermanyHQ checked Sep 19, 2026201-50021 contacts →

Indirect evidence

“Netz Intelligenz GmbH is part of a group of companies and has several department managers, project managers, site engineers, foremen and approximately over five hundred employees…”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceHamburg, GermanyHQ checked Sep 19, 20261-1021 contacts →

Indirect evidence

“BraCom ist ein etabliertes Telekommunikationsunternehmen, das zu einem bedeutenden Akteur auf dem norwegischen Glasfaser- und Telekommunikationsmarkt geworden ist.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 187 aerial fiber optic cable suppliers based in Germany

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Aerial fiber optic cable suppliers based in Germany at a glance

As of Sep 19, 2026
41.4%Verified-email coverage
12.3Average contacts per company
11-50Median size (employees)
5.3%Largest-city concentration · Berlin
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
53
11-50
67
51-200
52
201-500
8
501-1,000
4
1,001-5,000
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 187 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 aerial fiber optic cable suppliers, 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 “aerial fiber optic cable suppliers”. 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 aerial fiber optic cable suppliers), 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 aerial fiber optic cable suppliers, 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, 954 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 aerial fiber optic cable suppliers, 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 aerial fiber optic cable suppliers are there based in Germany?

RevenueBase identified 187 aerial fiber optic cable suppliers 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?

M-Net Telekommunikations Gmbh, headquartered in Munchen, tops this list with the largest team on record.

Which city has the most aerial fiber optic cable suppliers?

Berlin leads with 10 headquartered companies, followed by Hamburg (9) and Dusseldorf (6).

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 954 verified decision-maker contacts tracked across these 187 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.