Company lists · Data verified August 2026

Top 25 Call center companies based in Germany

Name: Call center companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 136 companies tracked

There are 136 call center companies headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 2,254 professional contacts across them, including 314 with verified work emails and 15 with mobile numbers. Berlin is the largest hub.

This list covers call center companies 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.

136Companies

2,254Contacts tracked

314Verified emails

15Mobile numbers

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The 25 largest call center companies based in Germany

Ranked by team size

Top 25 of 136 call center companies 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	Amevida SE	Dortmund	1,001-5,000	237	41
5	Cho-Time Gmbh	Monchengladbach	501-1,000	75	24
6	Global Office Gmbh	Montabaur	51-200	38	9
7	Teleteam Call-Center UND Service Gmbh	Oldenburg Oldb.	201-500	38	5
8	Communigate Kommunikationsservice Gmbh	Passau	201-500	35	12
9	Glöckle Direct Gmbh	Stuttgart	51-200	32	20
10	Voxpark Gmbh	Berlin	51-200	26	2
11	Dialog-Factory Gmbh	Augsburg	201-500	24	7
12	Digital Dialog	Heusenstamm	201-500	23	9
13	Econ TEL Gmbh	Munster	51-200	23	6
14	CMX Remote Gmbh	Berlin	11-50	21	6
15	Care4as Gmbh	Flensburg	201-500	21	2
16	Mediaphon Telemarketing Gmbh	Nurnberg	11-50	16	7
17	EUA Euro Union Assistance Gmbh	Stuttgart	51-200	14	3
18	Sales Unit Gmbh	Mannheim	51-200	12	6
19	Telias Gruppe	Koln	51-200	11	3
20	Communikom Gruppe	Mainz	201-500	11	1
21	Termitel Gmbh	Ettlingen	11-50	9	4
22	O-Ton Call Center Services Gmbh	Dortmund	51-200	9	1
23	Intertel Dialog-Service-Gmbh	Nurnberg	51-200	7	6
24	Makotel Gmbh	Sondershausen	51-200	6	2
25	Businesstalk AG	Munchen	51-200	6	1

Showing 25 of 136 call center companies based in Germany

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Call center companies based in Germany at a glance

As of Aug 28, 2026

11-50Median size (employees)

BerlinLargest hub · 9 HQs

15Contacts with mobile numbers

2Emails 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

Call center companies by metro

Metro	Companies
Call center companies in Berlin	9
Call center companies in Hamburg	7
Call center companies in Koln	6
Call center companies in Dusseldorf	4
Call center companies in Essen	4
Call center companies in Munchen	3
Call center companies in Stuttgart	3

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 “call center companies”, 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; 2 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 call center companies are there based in Germany?

There are 136 call center companies 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 call center companies?

Berlin leads with 9 headquartered companies, followed by Hamburg (7) and Koln (6).

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 314 verified decision-maker contacts tracked across these 136 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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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.