Company lists · Data refreshed September 2026

Top 25 Outbound call center companies based in Germany

RevenueBase identified 175 company matches for outbound call center companies associated with Germany as of September 2026 and tracks 2,369 professional contacts across them, including 393 with verified work emails. Berlin is the largest hub.

This list covers company matches for outbound call center companies associated with Germany, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
175Companies
2,369Contacts tracked
393Verified emails
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The 25 largest outbound call center companies based in Germany

Ranked by team size
Top 25 of 175 company matches for outbound call center companies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNuremberg, GermanyHQ recorded Sep 27, 20265,001-10,000359 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchDresden, GermanyHQ recorded Sep 27, 20261,001-5,000303 contacts →

Exact match

“gevekom - Your better place to work.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchBerlin, GermanyHQ recorded Sep 27, 20261,001-5,000257 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchGelsenkirchen, GermanyHQ recorded Sep 27, 20261,001-5,000237 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchMönchengladbach, GermanyHQ recorded Sep 27, 2026501-1,00076 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchOldenburg (oldb.), GermanyHQ recorded Sep 27, 2026201-50038 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchWiesbaden, GermanyHQ recorded Sep 27, 202651-20037 contacts →

Exact match

“For over 30 years, we have been helping companies with technically complex products and services that require explanation to achieve predictable and sustainable growth -…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchBerlin, GermanyHQ recorded Sep 27, 202651-20028 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchMannheim, GermanyHQ recorded Sep 27, 202651-20024 contacts →

Exact match

“Wer wir sind: triveo | Telemarketing steht seit über 19 Jahren für messbare und professionelle B2B-Kundenakquise.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchAugsburg, GermanyHQ recorded Sep 27, 2026201-50024 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchBayreuth, GermanyHQ recorded Sep 27, 202651-20024 contacts →

Exact match

“Ihre Marke ist unsere Botschaft Business Dialog ist unsere Stärke, effektive Vertriebsarbeit und optimales Kundenmarketing sind das A und O unserer Arbeit.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchHeusenstamm, GermanyHQ recorded Sep 27, 2026201-50023 contacts →

Exact match

“DIGITAL DIALOG ist eine der führenden B2B TeleSales Agenturen in Deutschland – mit Standorten in der Metropolregion Rhein-Main sowie Berlin/Potsdam.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchBerlin, GermanyHQ recorded Sep 27, 202611-5023 contacts →

Exact match

“Die Services von expertcloud beginnen dort, wo traditionelle Call Center an ihre Grenzen geraten: 100% Abdeckung eines volatilen Anrufvolumens durch einen kurzfristig skalierbaren…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchFlensburg, GermanyHQ recorded Sep 27, 2026201-50021 contacts →

Exact match

“Callcenter-Services, Telesales, Kundenservice”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLeipzig, GermanyHQ recorded Sep 27, 202651-20019 contacts →

Exact match

“Den roten oder den blauen Draht kappen?”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchNuremberg, GermanyHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“Mediaphon Telemarketing GmbH steht für qualitativ hochwertiges Telemarketing Wir beraten telefonisch mehr als Bestandskunden aller Branchen im B2B und begleiten klein- und…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchFlensburg, GermanyHQ recorded Sep 27, 202651-20016 contacts →

Exact match

“Die mr.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchFriedrichsdorf, GermanyHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“AVESKA leistet hochprofessionelle Vertriebsunterstützung für Midrange und Enterprise Unternehmen aus dem IT-Bereich.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchLübeck, GermanyHQ recorded Sep 27, 20261-1013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchBad Camberg, GermanyHQ recorded Sep 27, 202611-5012 contacts →

Exact match

“TELEMARKETING MIT DER TELESALES4U Vergessen Sie miefige Callcenter und Abtelefonieren nach Schema F.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchDresden, GermanyHQ recorded Sep 27, 20261-1011 contacts →

Exact match

“Cloud IT Services GmbH, a German company founded in 2010, excells in the development of Outbound Call Center solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchCologne, GermanyHQ recorded Sep 27, 202651-20011 contacts →

Exact match

“Als Spezialist für Telefon-Sekretariatsdienste und das Outsourcing von Telefonzentralen schafft TELiAS mit den vier Geschäftsbereichen Sekretariatsdienste, Mehrwertdienste…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchMainz, GermanyHQ recorded Sep 27, 2026201-50011 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchBerlin, GermanyHQ recorded Sep 27, 20261-1010 contacts →

Exact match

“Über Grundwerk Digital Willkommen bei Grundwerk Digital, Ihrer führenden Leadgenerierungsagentur aus Berlin.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchFrankfurt, GermanyHQ recorded Sep 27, 20261-109 contacts →

Exact match

“Über CBO-Marketing… Wir von CBO Marketing helfen gezielt IT-Unternehmen dabei, mehr Neukunden zu gewinnen und mehr Umsatz zu erzielen, durch gezieltes Telemarketing.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 175 outbound call center companies based in Germany

See the full list, filter by size, metro and specialty, and access 393 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outbound call center companies based in Germany at a glance

As of Sep 27, 2026
16.6%Verified-email coverage
13.5Average contacts per company
11-50Median size (employees)
8.6%Largest-city concentration · Berlin
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
81
11-50
45
51-200
24
201-500
11
501-1,000
6
1,001-5,000
4
5,001-10,000
1

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 175 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Germany whose business descriptions match “outbound call center companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 393 professional contacts with verified work emails across the full matched dataset. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “outbound call center companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outbound call center companies are there based in Germany?

RevenueBase identified 175 company matches for outbound call center companies associated with Germany as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sellbytel Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most outbound call center companies?

Berlin leads with 15 company records, followed by Cologne (10) and Hamburg (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 393 professional contacts with verified work emails tracked across these 175 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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 SmartSearch, 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.