Company lists · Data verified August 2026

Top 25 Customer service call centers based in Germany

Name: Customer service call centers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 114 companies tracked

There are 114 customer service call centers headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 2,273 professional contacts across them, including 295 with verified work emails and 15 with mobile numbers. Berlin is the largest hub.

This list covers customer service call centers headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

114Companies

2,273Contacts tracked

295Verified emails

15Mobile numbers

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The 25 largest customer service call centers based in Germany

Ranked by team size

Top 25 of 114 customer service call centers based in Germany, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Sellbytel Group	Nuremberg	5,001-10,000	363	33
2	Gevekom Gmbh	Leipzig	1,001-5,000	303	44
3	Kikxxl Gmbh	Dortmund	1,001-5,000	294	32
4	DCS Communication Center	Berlin	1,001-5,000	255	37
5	Amevida SE	Dortmund	1,001-5,000	237	41
6	Cho-Time Gmbh	Monchengladbach	501-1,000	75	24
7	Global Office Gmbh	Montabaur	51-200	38	9
8	Teleteam Call-Center UND Service Gmbh	Oldenburg Oldb.	201-500	38	5
9	Communigate Kommunikationsservice Gmbh	Passau	201-500	35	12
10	Voxpark Gmbh	Berlin	51-200	26	2
11	Dialog-Factory Gmbh	Augsburg	201-500	24	7
12	CMX Remote Gmbh	Berlin	11-50	21	6
13	Care4as Gmbh	Flensburg	201-500	21	2
14	EUA Euro Union Assistance Gmbh	Stuttgart	51-200	14	3
15	Telias Gruppe	Koln	51-200	11	3
16	Communikom Gruppe	Mainz	201-500	11	1
17	Termitel Gmbh	Ettlingen	11-50	9	4
18	O-Ton Call Center Services Gmbh	Dortmund	51-200	9	1
19	Intertel Dialog-Service-Gmbh	Nurnberg	51-200	7	6
20	Makotel Gmbh	Sondershausen	51-200	6	2
21	Fonata	Lippstadt	11-50	4	3
22	Maxupport Gmbh	Gutersloh	11-50	4	1
23	Posern Connect Gmbh	Zeven	11-50	3	3
24	Cotal Gmbh	Giessen	11-50	3	1
25	Infon Kommunikationslösungen Gmbh	Hamburg	51-200	2	1

Showing 25 of 114 customer service call centers based in Germany

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Customer service call centers based in Germany at a glance

As of Aug 28, 2026

11-50Median size (employees)

BerlinLargest hub · 12 HQs

15Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Customer service call centers by metro

Metro	Companies
Customer service call centers in Berlin	12
Customer service call centers in Hamburg	5
Customer service call centers in Koln	4
Customer service call centers in Dusseldorf	4
Customer service call centers in Essen	4
Customer service call centers in Dortmund	3
Customer service call centers in Leipzig	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “customer service call centers”, with match quality audited by blind human judging, and headquartered in Germany.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many customer service call centers are there based in Germany?

There are 114 customer service call centers headquartered in Germany as of August 2026 (RevenueBase).

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 customer service call centers?

Berlin leads with 12 headquartered companies, followed by Hamburg (5) and Koln (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 295 verified decision-maker contacts tracked across these 114 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Customer service call centers by geography

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.