Company lists · Data refreshed November 2026

Top 25 Fiber optic cable companies based in Germany

RevenueBase identified 333 company matches for fiber optic cable companies associated with Germany as of November 2026 and tracks 5,260 professional contacts across them, including 2,339 with verified work emails. Berlin is the largest hub.

This list covers company matches for fiber optic cable companies 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
333Companies
5,260Contacts tracked
2,339Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest fiber optic cable companies based in Germany

Ranked by team size
Top 25 of 333 company matches for fiber optic cable companies 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 matchFridolfing, GermanyHQ recorded Nov 6, 202610001+1,216 contacts →

Exact match

“Rosenberger is one of the world‘s leading manufacturers of impedance-controlled and optical connectivity solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMunich, GermanyHQ recorded Nov 6, 2026501-1,000470 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDüsseldorf, GermanyHQ recorded Nov 6, 2026201-500242 contacts →

Exact match

“Die Glasfaser-Expert*innen: Wir von der OXG Glasfaser GmbH bauen und betreiben ein schnelles und zuverlässiges Glasfaser-Netz in Deutschland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchFlensburg, GermanyHQ recorded Nov 6, 2026201-500105 contacts →

Exact match

“Die netzkontor nord gmbh mit Standorten in Erfurt, Flensburg, Lübeck, Neumünster, Schwerin und Wipperfürth, gehört zur bundesweittätigen Netzkontor GmbH und stellt eines der…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBielefeld, GermanyHQ recorded Nov 6, 2026201-50090 contacts →

Exact match

“Fast.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGarmisch-partenkirchen, GermanyHQ recorded Nov 6, 2026201-50082 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNeckartenzlingen, GermanyHQ recorded Nov 6, 20265,001-10,00077 contacts →

Exact match

“Durch die Kombination von wirtschaftlichem Know-how mit den technologisch fortschrittlichsten Produkten unserer führenden Marken Belden®, GarrettCom®, Hirschmann™ and Lumberg…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchDüsseldorf, GermanyHQ recorded Nov 6, 202651-20075 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchGöttingen, GermanyHQ recorded Nov 6, 202651-20075 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSaarlouis, GermanyHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“Amphenol-Air LB GmbH, Am Kleinbahnhof 4, D-66740 Saarlouis Amphenol-Air LB is part of the Amphenol Group, one of the world's largest manufacturers of connector technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDeggendorf, GermanyHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“LEONET ist seit über 16 Jahren auf dem Breitbandmarkt aktiv und setzt sich als Pionierunternehmen für digitale Chancengleichheit in ländlichen Regionen ein.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchFriedrichshafen, GermanyHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Das TeleData Netz - das Netz der Zukunft?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchStolberg, GermanyHQ recorded Nov 6, 202651-20059 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNorderstedt, GermanyHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“Konnektivität ist Grundlage für attraktiven Wohnraum und Wettbewerbsfähigkeit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSchwäbisch Gmünd, GermanyHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“ropa unterstützt Besitzer von Glasfasernetzen wie zum Beispiel Stadtwerke beim Betrieb und Ausbau ihrer Telekommunikationsnetze: Unsere Experten entwickeln passive Breitbandnetze…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSteinfurt, GermanyHQ recorded Nov 6, 2026501-1,00046 contacts →

Exact match

“Libra Gmbh ist eine Geschäftseinheit als Vehikel für ausgebildete und erfahrene Fachleute in der Branche für den Bau von Glasfasernetzen, wo sie ihre Fähigkeiten und Kreativität…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBorken, GermanyHQ recorded Nov 6, 202651-20041 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStraelen, GermanyHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Seit über 25 Jahren zählt GasLINE zu den führenden LWL-Infrastrukturanbietern in Deutschland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchFridolfing, GermanyHQ recorded Nov 6, 20261,001-5,00037 contacts →

Exact match

“As a renowned manufacturer, the name Rosenberger is associated with the most advanced technology, quality and creativity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNordhorn, GermanyHQ recorded Nov 6, 2026201-50035 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGoldbach, GermanyHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“Glasfaserausbau, Wartung und Reparaturen, Bau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMainz, GermanyHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“HUBER+SUHNER Cube Optics; Pushing the boundaries of fiber optical transport for more than 20 years Fiber optical transport is the backbone of the global data transmission.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLottstetten, GermanyHQ recorded Nov 6, 202651-20032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBodman, GermanyHQ recorded Nov 6, 202651-20032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchJena, GermanyHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“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.”

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

Showing 25 of 333 fiber optic cable companies based in Germany

See the full list, filter by size, metro and specialty, and access 2,339 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Fiber optic cable companies based in Germany at a glance

As of Nov 6, 2026
44.5%Verified-email coverage
15.8Average contacts per company
11-50Median size (employees)
3.9%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
89
11-50
120
51-200
83
201-500
15
501-1,000
5
1,001-5,000
3
5,001-10,000
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 333 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 “fiber optic cable companies” 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 2,339 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 “fiber optic cable companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fiber optic cable companies are there based in Germany?

RevenueBase identified 333 company matches for fiber optic cable companies 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?

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

Which city has the most fiber optic cable companies?

Berlin leads with 13 company records, followed by Hamburg (11) and Cologne (8).

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 2,339 professional contacts with verified work emails tracked across these 333 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.

Ready to reach these companies? Verified emails and direct dials for all 333 fiber optic cable companies based in Germany. Start with a free account, no credit card.

Download this list →

Related lists

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.