Company lists · Data refreshed September 2026

Top 25 Multilingual call centers based in Germany

RevenueBase identified 81 multilingual call centers headquartered in Germany as of September 2026 and tracks 2,708 professional contacts across them, including 446 with verified work emails and 14 with mobile numbers. Hamburg is the largest hub.

This list covers multilingual call centers 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 5, 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 5, 2026 86% judged on-target in blind review
81Companies
2,708Contacts tracked
446Verified emails
14Mobile numbers
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The 25 largest multilingual call centers based in Germany

Ranked by team size
Top 25 of 81 multilingual call centers based in Germany, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to multilingual call centers: 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 evidenceNuremberg, GermanyHQ checked Sep 5, 20265,001-10,000359 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
2Indirect evidenceDresden, GermanyHQ checked Sep 5, 20261,001-5,000303 contacts →

Indirect evidence

“gevekom - Your better place to work.”

Source: RevenueBase Database · checked Sep 5, 2026
3Indirect evidenceOsnabrück, GermanyHQ checked Sep 5, 20261,001-5,000294 contacts →

Indirect evidence

“KIKXXL wurde von Andreas Kremer gegründet.”

Source: RevenueBase Database · checked Sep 5, 2026
4Partial evidenceBerlin, GermanyHQ checked Sep 5, 20261,001-5,000257 contacts →

Partial evidence

“DCS Communication Center, your "Global Partner" in costumer management business process outsourcing since 1995.”

Source: RevenueBase Database · checked Sep 5, 2026
5Strong evidenceGelsenkirchen, GermanyHQ checked Sep 5, 20261,001-5,000237 contacts →

Strong evidence

“AMEVIDA is one of the largest owner-managed companies in the German call center and customer care industry and is headquartered in Gelsenkirchen.”

Source: RevenueBase Database · checked Sep 5, 2026
6Indirect evidenceHamburg, GermanyHQ checked Sep 5, 2026201-500112 contacts →

Indirect evidence

“Newstel Worldwide is a trusted partner to clients across various industries, helping them achieve customer success and grow their businesses through digitally-led customer service…”

Source: RevenueBase Database · checked Sep 5, 2026
7Indirect evidenceLeipzig, GermanyHQ checked Sep 5, 2026201-50097 contacts →

Indirect evidence

“Since 1992 TAS AG has been providing all-round solutions for customer communications, making it one of Germany's oldest complex full-service operators in dialogue management.”

Source: RevenueBase Database · checked Sep 5, 2026
8Indirect evidenceMönchengladbach, GermanyHQ checked Sep 5, 2026501-1,00076 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 5, 2026
9Indirect evidenceBerlin, GermanyHQ checked Sep 5, 2026201-50073 contacts →

Indirect evidence

“ja-dialog – Wir sind dein Kundenservice.”

Source: RevenueBase Database · checked Sep 5, 2026
10Indirect evidenceHeilbronn, GermanyHQ checked Sep 5, 2026501-1,00061 contacts →

Indirect evidence

“Seit über 25 Jahren verantworten wir Kundensupport- und Serviceprozesse für Unternehmen mit hohen Ansprüchen an Customer Experience.”

Source: RevenueBase Database · checked Sep 5, 2026
11Indirect evidenceHamburg, GermanyHQ checked Sep 5, 2026501-1,00058 contacts →

Indirect evidence

“Hey!”

Source: RevenueBase Database · checked Sep 5, 2026
12Strong evidenceOldenburg (oldb.), GermanyHQ checked Sep 5, 2026201-50038 contacts →

Strong evidence

“Call-Center & Service-Dienstleister überzeugt auf 1.998qm mit über 180 festen Mitarbeitern, durch Qualität, Effizienz & Transparenz.”

Source: RevenueBase Database · checked Sep 5, 2026
13Indirect evidenceEssen, GermanyHQ checked Sep 5, 2026501-1,00038 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 5, 2026
14Indirect evidencePassau, GermanyHQ checked Sep 5, 2026201-50035 contacts →

Indirect evidence

“CommuniGate ist ein Premiumdienstleister für die gesamte Bandbreite der schriftlichen und telefonischen, vertriebs- und serviceorientierten Kundenkommunikation.”

Source: RevenueBase Database · checked Sep 5, 2026
15Indirect evidenceStuttgart, GermanyHQ checked Sep 5, 202651-20031 contacts →

Indirect evidence

“As a dynamic Company we focus on an excellent customer service and international customer relationship management.”

Source: RevenueBase Database · checked Sep 5, 2026
16Partial evidenceBerlin, GermanyHQ checked Sep 5, 202651-20028 contacts →

Partial evidence

“Die voxpark GmbH ist ein etabliertes und wachsendes Kundenservice-Center, das sich erfolgreich in den Bereichen Telemarketing und ganzheitliches Kundenmanagement positioniert hat.”

Source: RevenueBase Database · checked Sep 5, 2026
17Indirect evidenceAugsburg, GermanyHQ checked Sep 5, 2026201-50024 contacts →

Indirect evidence

“Die Mitarbeiter der Dialog-Factory bieten weit mehr Service als ein klassisches Callcenter.”

Source: RevenueBase Database · checked Sep 5, 2026
18Indirect evidenceFlensburg, GermanyHQ checked Sep 5, 2026201-50021 contacts →

Indirect evidence

“Callcenter-Services, Telesales, Kundenservice”

Source: RevenueBase Database · checked Sep 5, 2026
19Indirect evidenceMannheim, GermanyHQ checked Sep 5, 2026201-50019 contacts →

Indirect evidence

“HEAR THE SMILE IN OUR VOICE At LUATEL, we don’t just deliver customer support, we create meaningful customer experiences at scale.”

Source: RevenueBase Database · checked Sep 5, 2026
20Indirect evidenceStuttgart, GermanyHQ checked Sep 5, 202651-20014 contacts →

Indirect evidence

“Kundenservice, der überzeugt – dafür steht die EUA.”

Source: RevenueBase Database · checked Sep 5, 2026
21Indirect evidenceMainz, GermanyHQ checked Sep 5, 2026201-50011 contacts →

Indirect evidence

“Die Communikom Gruppe ist der richtige Ansprechpartner im Bereich Telekommunikation.”

Source: RevenueBase Database · checked Sep 5, 2026
22Partial evidenceHeilbronn, GermanyHQ checked Sep 5, 2026201-5009 contacts →

Partial evidence

“REACH XCEL GmbH operates contact centers based in Heilbronn and Prishtina.”

Source: RevenueBase Database · checked Sep 5, 2026
23Strong evidenceEttlingen, GermanyHQ checked Sep 5, 202611-509 contacts →

Strong evidence

“Termitel – Ihr Partner für exzellentes Telemarketing & Customer Care Sie suchen einen starken Partner für Ihre Call Center- und Customer Care-Aktivitäten?”

Source: RevenueBase Database · checked Sep 5, 2026
24Partial evidenceDortmund, GermanyHQ checked Sep 5, 202651-2009 contacts →

Partial evidence

“Seit über 20 Jahren sind wir Ihr Partner für Call- und ServiceCenter Dienstleistungen!”

Source: RevenueBase Database · checked Sep 5, 2026
25Indirect evidenceNürnberg, GermanyHQ checked Sep 5, 202651-2008 contacts →

Indirect evidence

“In den letzten 40 Jahren hat sich die intertel dialog-service-gmbh auf die Bereiche Vertrieb und Kundenservice spezialisiert.”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 25 of 81 multilingual call centers based in Germany

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Multilingual call centers based in Germany at a glance

As of Sep 5, 2026
16.5%Verified-email coverage
0.5%Mobile-number coverage
33.4Average contacts per company
51-200Median size (employees)
8.6%Largest-city concentration · Hamburg
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
13
51-200
13
201-500
15
501-1,000
8
1,001-5,000
4
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 multilingual call centers, 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 “multilingual call centers”. 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 multilingual call centers), 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 multilingual call centers, 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, 446 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 5, 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 multilingual call centers, 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 multilingual call centers are there based in Germany?

RevenueBase identified 81 multilingual call centers 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 multilingual call centers?

Hamburg leads with 7 headquartered companies, followed by Berlin (6) and Dusseldorf (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 446 verified decision-maker contacts tracked across these 81 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 5, 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.