Company lists · Data refreshed September 2026

Top 25 Infrastructure services companies based in Germany

RevenueBase identified 645 infrastructure services companies headquartered in Germany as of September 2026 and tracks 9,862 professional contacts across them, including 3,475 with verified work emails. Berlin is the largest hub.

This list covers infrastructure services companies 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 20, 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 20, 2026 86% judged on-target in blind review
645Companies
9,862Contacts tracked
3,475Verified emails
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The 25 largest infrastructure services companies based in Germany

Ranked by team size
Top 25 of 645 infrastructure services companies based in Germany, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure services companies: 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 evidenceSengenthal, GermanyHQ checked Sep 20, 20265,001-10,0001,072 contacts →

Indirect evidence

“Bau.”

Source: RevenueBase Database · checked Sep 20, 2026
2Strong evidenceBerlin, GermanyHQ checked Sep 20, 2026501-1,000411 contacts →

Strong evidence

“The Dornier Group is a global one-stop store for engineering services with a focus on the infrastructure sector.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceFrankfurt Am Main, GermanyHQ checked Sep 20, 20261,001-5,000403 contacts →

Indirect evidence

“AXIANS is the corporate brand for network infrastrucutures and corporate communications of VINCI Energies, one of the leading European providers of energy and information…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceNürnberg, GermanyHQ checked Sep 20, 2026501-1,000287 contacts →

Indirect 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 20, 2026
5Indirect evidenceDüsseldorf, GermanyHQ checked Sep 20, 202610001+261 contacts →

Indirect evidence

“Klüh Service Management GmbH is a global multiservice provider from Düsseldorf, Germany.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceKöln, GermanyHQ checked Sep 20, 2026201-500248 contacts →

Indirect evidence

“Die Plusnet GmbH, eine Tochtergesellschaft der EnBW, ist ein deutsches Telekommunikationsunternehmen mit Fokus auf Geschäftskunden.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceBad Sobernheim, GermanyHQ checked Sep 20, 2026501-1,000246 contacts →

Indirect evidence

“Welcome to Medialine AG – your IT & C system house.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceMainz, GermanyHQ checked Sep 20, 2026501-1,000207 contacts →

Indirect evidence

“evoila is a leading, owner-managed IT service provider with 600+ professionals across the world.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceChemnitz, GermanyHQ checked Sep 20, 20261,001-5,000200 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceRatingen, GermanyHQ checked Sep 20, 2026201-500177 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 20, 2026
11Indirect evidenceBergisch Gladbach, GermanyHQ checked Sep 20, 20261,001-5,000134 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 20, 2026
12Indirect evidenceSalzgitter, GermanyHQ checked Sep 20, 2026501-1,000117 contacts →

Indirect evidence

“Unsere TELCAT Gruppe zählt nicht umsonst zu den größten ITK-Systemhäusern Deutschlands.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceKempten (allgäu), GermanyHQ checked Sep 20, 202651-200108 contacts →

Indirect evidence

“Comprehensive planning.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceDüsseldorf, GermanyHQ checked Sep 20, 2026201-50094 contacts →

Indirect evidence

“Engineering & IT for a better world As an international technology partner in Engineering & IT, Excellence is your path to inspiring projects with real impact.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceKöln, GermanyHQ checked Sep 20, 202651-20093 contacts →

Indirect 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 20, 2026
16Indirect evidenceKarlsruhe, GermanyHQ checked Sep 20, 202651-20089 contacts →

Indirect evidence

“TelemaxX betreibt vier Hochsicherheits-Rechenzentren in Karlsruhe und bietet maßgeschneiderte Lösungen in den Bereichen #Rechenzentrumsflächen,#Housing und Managed Services.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceStuttgart, GermanyHQ checked Sep 20, 202651-20088 contacts →

Indirect evidence

“Seit Jahrzehnten steht RBS wave für zuverlässiges und innovatives Know-how im Bereich Ingenieurdienstleistungen.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceGelsenkirchen, GermanyHQ checked Sep 20, 2026201-50087 contacts →

Indirect evidence

“Wir sind die Spezialisten für den Betrieb leitungsgebundener Infrastruktur: Strom, Gas, Wasser und Wärme.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceEssen, GermanyHQ checked Sep 20, 202651-20081 contacts →

Indirect evidence

“Willkommen bei SiteLog, wir sind erfahrener Dienstleister für Baulogistik sowie Baustelleninfrastruktur und bieten ein breites Leistungsspektrum, das von der Beratung über die…”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceMaisach, GermanyHQ checked Sep 20, 2026501-1,00065 contacts →

Indirect evidence

“ENACO Energieanlagen - und Kommunikationstechnik GmbH is a construction company based out of TULPENSTRAßE 19, Maisach, Germany.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceHamburg, GermanyHQ checked Sep 20, 202651-20064 contacts →

Indirect evidence

“Sellhorn provides engineering consultancy services for public and private clients in Germany and overseas in the following fields- Ports and terminals for handling of containers…”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceLudwigshafen, GermanyHQ checked Sep 20, 202651-20050 contacts →

Indirect evidence

“Warum PFALZKOM?”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceNeukeferloh, GermanyHQ checked Sep 20, 202651-20049 contacts →

Indirect evidence

“Networks are the backbone of modern organizations.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceBerlin, GermanyHQ checked Sep 20, 202651-20049 contacts →

Indirect evidence

“ü Mit über 30 Jahren Erfahrung stehen wir Unternehmen zur Seite, wenn es darum geht, Technologie zur echten Wertschöpfung zu machen, nicht zur Belastung.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceKiel, GermanyHQ checked Sep 20, 202651-20044 contacts →

Indirect evidence

“Unsere Mission: NetUSE-Kunden sind sicher!”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 645 infrastructure services companies based in Germany

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Infrastructure services companies based in Germany at a glance

As of Sep 20, 2026
35.2%Verified-email coverage
15.3Average contacts per company
11-50Median size (employees)
5.6%Largest-city concentration · Berlin
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
282
11-50
202
51-200
84
201-500
31
501-1,000
15
1,001-5,000
12
5,001-10,000
1
10001+
3

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 645 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 infrastructure services companies, 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 “infrastructure services companies”. 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 infrastructure services companies), 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 infrastructure services companies, 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, 3,475 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 20, 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.

Infrastructure services companies by metro

  • Infrastructure services companies in Berlin36

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 infrastructure services companies, 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 infrastructure services companies are there based in Germany?

RevenueBase identified 645 infrastructure services companies 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?

Firmengruppe MAX Bögl, headquartered in Sengenthal, tops this list with the largest team on record.

Which city has the most infrastructure services companies?

Berlin leads with 36 headquartered companies, followed by Hamburg (19) and Frankfurt Am Main (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 3,475 verified decision-maker contacts tracked across these 645 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 20, 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.