Company lists · Data refreshed September 2026

Top 25 Technical support outsourcing companies based in Germany

RevenueBase identified 132 technical support outsourcing companies headquartered in Germany as of September 2026 and tracks 1,375 professional contacts across them, including 239 with verified work emails and 20 with mobile numbers. Berlin is the largest hub.

This list covers technical support outsourcing 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 6, 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 6, 2026 86% judged on-target in blind review
132Companies
1,375Contacts tracked
239Verified emails
20Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest technical support outsourcing companies based in Germany

Ranked by team size
Top 25 of 132 technical support outsourcing companies based in Germany, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to technical support outsourcing 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
1Partial evidenceNuremberg, GermanyHQ checked Sep 6, 20265,001-10,000359 contacts →

“The SELLBYTEL Group is one of the worldwide leading outsourcing specialists and part of Webhelp.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceHochheim Am Main, GermanyHQ checked Sep 6, 2026201-50097 contacts →

“Technogroup is the market leader for third-party maintenance (TPM) in data centres in Germany, Austria and Switzerland and, as a member of the Evernex Group, is the market leader…”

Source: company website · checked Sep 6, 2026
3Indirect evidenceMichelstadt, GermanyHQ checked Sep 6, 20261,001-5,00060 contacts →

“Die LY Holding GmbH in Michelstadt ist seit über 35 Jahren ein erfahrener und verlässlicher Servicepartner für Unternehmen aus verschiedensten Industriezweigen – von der…”

Source: company website · checked Sep 6, 2026
4Indirect evidenceOberhausen, GermanyHQ checked Sep 6, 2026501-1,00056 contacts →

“Gegründet um anders zu sein.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceWalluf, GermanyHQ checked Sep 6, 202651-20033 contacts →

“Systemunterhalt, Systemsupport und IT Hardware-Wartung ITRIS GmbH Germany ist ein Unternehmen der schweizerischen ITRIS Gruppe, gegründet 1986 mit Hauptsitz in Spreitenbach (bei…”

Source: company website · checked Sep 6, 2026
6Indirect evidenceLangen, GermanyHQ checked Sep 6, 202611-5018 contacts →

“No matter the branch you work in: An efficiently functioning corporate communication is the key for your business success.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceDuisburg, GermanyHQ checked Sep 6, 2026201-50014 contacts →

“UNION TECHNIK ist der Allrounder rund um das Thema technische Services.”

Source: company website · checked Sep 6, 2026
8Partial evidenceBerlin, GermanyHQ checked Sep 6, 202651-20012 contacts →

“Seit mehr als 20 Jahren übernehmen wir rund um die Uhr – an 365 Tagen im Jahr – Geschäftsprozesse im Kundenservice, technischen Support, in der Fernwartung sowie in der Notdienst-…”

Source: company website · checked Sep 6, 2026
9Indirect evidenceDüsseldorf, GermanyHQ checked Sep 6, 202611-5010 contacts →

“We are focusing on FIVE topic areas.”

Source: company website · checked Sep 6, 2026
10Partial evidenceHallstadt, GermanyHQ checked Sep 6, 202611-509 contacts →

“Unser Support besteht aus kompetenten und professionellen IT-Spezialisten, die für unsere Kunden zu den üblichen Geschäftszeiten immer telefonisch erreichbar sind.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceBielefeld, GermanyHQ checked Sep 6, 202611-508 contacts →

“Übertragen Sie Ihre Dienstleistungsprozesse an uns und gewinnen Sie so neue Ressourcen für Ihr Kerngeschäft.”

Source: company website · checked Sep 6, 2026
12Partial evidenceBerlin, GermanyHQ checked Sep 6, 202611-507 contacts →

“CK7: Software, Service und Support.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceBad Homburg, GermanyHQ checked Sep 6, 20261-106 contacts →
Source: company website · checked Sep 6, 2026
14Indirect evidenceNürnberg, GermanyHQ checked Sep 6, 202651-2006 contacts →

“Ich helfe Ihnen, eine dauerhafte telefonische Erreichbarkeit zu gewährleisten, ohne dass Sie weiteres festes Personal und zusätzliche IT-Einrichtung benötigen.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceWeimar, GermanyHQ checked Sep 6, 202611-505 contacts →

“Somit können wir Sie im Falle von Problemen oder Fragen direkt aus der Ferne unterstützen.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceJena, GermanyHQ checked Sep 6, 20261-105 contacts →

“Optimiere Dein Kerngeschäft und schaffe Dir und Deinem Team dadurch mehr Fokus-Arbeitszeit!”

Source: company website · checked Sep 6, 2026
17Partial evidenceGütersloh, GermanyHQ checked Sep 6, 202611-504 contacts →

“Your customer support center - not just for games.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceBonn, GermanyHQ checked Sep 6, 20261-104 contacts →

“Von der One-Man Show zum Team HeiProTec Mein Name ist Alexander Heinrich und ich habe das Unternehmen „Heinrich Professional Technology“ 2013 gegründet.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceMannheim, GermanyHQ checked Sep 6, 202611-503 contacts →

“Wir begleiten unsere Kunden in die Zukunft der IT: Mit innovativen Technologien und erfahrenen Experten schaffen wir flexible Lösungen, die einfach funktionieren.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceBonn, GermanyHQ checked Sep 6, 20261-103 contacts →

“Wir lösen Ihre Technikprobleme, klären Ihre Technikfragen und beschaffen Ihnen passende Computer und andere Hardware!”

Source: company website · checked Sep 6, 2026
21Indirect evidenceAachen, GermanyHQ checked Sep 6, 202651-2003 contacts →

“Die GRÜN aixtema leistet seit über 25 Jahren auf inzwischen qm After Sales Services für Hersteller aus den Branchen IT, Telekommunikation und Elektronik.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceNeckarsulm, GermanyHQ checked Sep 6, 20261-102 contacts →

“Die bit office ist Ihr Ansprechpartner rund um IT.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceHannover, GermanyHQ checked Sep 6, 20261-102 contacts →

“Do you need additional resources in your IT department on a permanent or temporary basis?”

Source: company website · checked Sep 6, 2026
24Indirect evidenceHeinsberg, GermanyHQ checked Sep 6, 202611-502 contacts →

“Bist du unzufrieden mit deiner IT?”

Source: company website · checked Sep 6, 2026
25Indirect evidenceBerlin, GermanyHQ checked Sep 6, 202611-502 contacts →

“by bit4finance Gesellschaft für IT-Dienstleistungen mbH 360° IT-Service Modern.”

Source: company website · checked Sep 6, 2026

Showing 25 of 132 technical support outsourcing companies based in Germany

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 239 reachable decision-makers.

Free signup · no credit card

View the full list →

Technical support outsourcing companies based in Germany at a glance

As of Sep 6, 2026
17.4%Verified-email coverage
1.5%Mobile-number coverage
10.4Average contacts per company
1-10Median size (employees)
7.6%Largest-city concentration · Berlin
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
79
11-50
28
51-200
9
201-500
2
501-1,000
2
1,001-5,000
1
5,001-10,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 technical support outsourcing 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 “technical support outsourcing 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 technical support outsourcing 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 technical support outsourcing 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, 239 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 6, 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 technical support outsourcing 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 technical support outsourcing companies are there based in Germany?

RevenueBase identified 132 technical support outsourcing 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?

Sellbytel Group, headquartered in Nuremberg, tops this list with the largest team on record.

Which city has the most technical support outsourcing companies?

Berlin leads with 10 headquartered companies, followed by Hamburg (4) and Munchen (4).

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 239 verified decision-maker contacts tracked across these 132 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 132 technical support outsourcing 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 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.