Company lists · Data refreshed September 2026

Top 25 Sales outsourcing call centers based in Germany

RevenueBase identified 257 company matches for sales outsourcing call centers associated with Germany as of September 2026 and tracks 4,063 professional contacts across them, including 698 with verified work emails. Berlin is the largest hub.

This list covers company matches for sales outsourcing call centers 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 15, 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 15, 2026 How this list was built
257Companies
4,063Contacts tracked
698Verified emails
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The 25 largest sales outsourcing call centers based in Germany

Ranked by team size
Top 25 of 257 company matches for sales outsourcing call centers based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 15, 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 15, 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 15, 2026 · View company records in RevenueBase
2Exact matchDresden, GermanyHQ recorded Sep 15, 20261,001-5,000303 contacts →

Exact match

“gevekom - Your better place to work.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
3Exact matchOsnabrück, GermanyHQ recorded Sep 15, 20261,001-5,000294 contacts →

Exact match

“KIKXXL wurde von Andreas Kremer gegründet.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
4Exact matchBerlin, GermanyHQ recorded Sep 15, 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 15, 2026 · View company records in RevenueBase
5Exact matchGelsenkirchen, GermanyHQ recorded Sep 15, 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 15, 2026 · View company records in RevenueBase
6Exact matchNuremberg, GermanyHQ recorded Sep 15, 2026201-500188 contacts →

Exact match

“Als Vertriebspartner von B2B-Unternehmen steigern wir seit über 20 Jahren Umsätze, gewinnen neue Kunden und heben ungenutzte Marktpotenziale.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
7Exact matchLeipzig, GermanyHQ recorded Sep 15, 20265,001-10,000120 contacts →

Exact match

“Ströer X ist der größte deutsche Business Process Outsourcing (BPO)-Anbieter und Spezialist für Dialogmarketing, Customer Experience, Sales und digitale Transformation.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
8Exact matchBerlin, GermanyHQ recorded Sep 15, 20261,001-5,000116 contacts →

Exact match

“Die CMX Solutions GmbH ist Teil der CMX Group, einem inhabergeführten Unternehmen, das seit der Gründung im Jahr 2012 kontinuierlich zu einem führenden Anbieter von…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
9Exact matchMönchengladbach, GermanyHQ recorded Sep 15, 2026501-1,00076 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
10Exact matchHeilbronn, GermanyHQ recorded Sep 15, 2026501-1,00061 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
11Exact matchOberhausen, GermanyHQ recorded Sep 15, 2026501-1,00056 contacts →

Exact match

“Gegründet um anders zu sein.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
12Exact matchUlm, GermanyHQ recorded Sep 15, 202651-20054 contacts →

Exact match

“Max ASP is a professional inside sales-as-a-service and CRM consulting provider, specialized in industrial machinery and components, and complex industries, across global markets.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
13Exact matchMülheim An Der Ruhr, GermanyHQ recorded Sep 15, 2026201-50044 contacts →

Exact match

“Wir setzen auf erfolgreiches Wachstum unserer Partner und sind Spezialisten im Bereich Sales, Service & Dialogmarketing.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
14Exact matchMontabaur, GermanyHQ recorded Sep 15, 202651-20038 contacts →

Exact match

“Bei Anruf: Telefonengel“ global office bietet telefonische Kommunikation in natürlicher Sprache als zusätzlichen Touchpoint für Wirtschaft und Verwaltung.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
15Exact matchOldenburg (oldb.), GermanyHQ recorded Sep 15, 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 15, 2026 · View company records in RevenueBase
16Exact matchPassau, GermanyHQ recorded Sep 15, 2026201-50035 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
17Exact matchHeidelberg, GermanyHQ recorded Sep 15, 202611-5030 contacts →

Exact match

“Bei der UNIAQ AG vereint sich echte Expertise direkt aus Heidelberg: 50 Jahre B2B-IT-Telemarketing-Erfahrung der Gründer trifft auf ein vielseitiges, erfahrenes Team aus Sales…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
18Exact matchBerlin, GermanyHQ recorded Sep 15, 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 15, 2026 · View company records in RevenueBase
19Exact matchFreiburg, GermanyHQ recorded Sep 15, 202611-5027 contacts →

Exact match

“DER BESSERE WEG ZU IHREN B2B-KUNDEN plicatec ist der führende Vertriebsdienstleister für Unternehmen aus IT, Tech, High-Tech, Engineering und Unternehmen mit komplexen Lösungen…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
20Exact matchMannheim, GermanyHQ recorded Sep 15, 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 15, 2026 · View company records in RevenueBase
21Exact matchAugsburg, GermanyHQ recorded Sep 15, 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 15, 2026 · View company records in RevenueBase
22Exact matchBayreuth, GermanyHQ recorded Sep 15, 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 15, 2026 · View company records in RevenueBase
23Exact matchMünster, GermanyHQ recorded Sep 15, 202651-20023 contacts →

Exact match

“Wir sind Ihr Premium Partner für den telefonischen sowie digitalen Vertrieb.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
24Exact matchHeusenstamm, GermanyHQ recorded Sep 15, 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 15, 2026 · View company records in RevenueBase
25Exact matchFlensburg, GermanyHQ recorded Sep 15, 2026201-50021 contacts →

Exact match

“Callcenter-Services, Telesales, Kundenservice”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase

Showing 25 of 257 sales outsourcing call centers based in Germany

See the full list, filter by size, metro and specialty, and access 698 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sales outsourcing call centers based in Germany at a glance

As of Sep 15, 2026
17.2%Verified-email coverage
15.8Average contacts per company
11-50Median size (employees)
8.2%Largest-city concentration · Berlin
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
113
11-50
62
51-200
41
201-500
18
501-1,000
8
1,001-5,000
6
5,001-10,000
2

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 257 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 “sales outsourcing call centers” 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 698 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 15, 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 “sales outsourcing call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sales outsourcing call centers are there based in Germany?

RevenueBase identified 257 company matches for sales outsourcing call centers 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 sales outsourcing call centers?

Berlin leads with 21 company records, followed by Munich (13) and Cologne (10).

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 698 professional contacts with verified work emails tracked across these 257 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 15, 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.