Company lists · Data refreshed September 2026

Top 25 Lead generation call centers based in Germany

RevenueBase identified 212 lead generation call centers headquartered in Germany as of September 2026 and tracks 1,410 professional contacts across them, including 375 with verified work emails and 51 with mobile numbers. Berlin is the largest hub.

This list covers lead generation 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
212Companies
1,410Contacts tracked
375Verified emails
51Mobile numbers
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The 25 largest lead generation call centers based in Germany

Ranked by team size
Top 25 of 212 lead generation call centers based in Germany, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names lead generation call centers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Dimarcon GmbhIndirect evidence
Wiesbaden, GermanyHQ checked Sep 4, 202651-20037

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

Source: company website · checked Sep 4, 2026
2
Cooper AdvertisingStrong evidence
Hamburg, GermanyHQ checked Sep 4, 202611-5032

“Cooper Advertising with its headquarters in Hamburg’s HafenCity district is your expert in B2C lead generation and direct sales.”

Source: company website · checked Sep 4, 2026
3
Uniaq AGIndirect evidence
Heidelberg, GermanyHQ checked Sep 4, 202611-5030

“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…”

Source: company website · checked Sep 4, 2026
4Freiburg, GermanyHQ checked Sep 4, 202611-5027

“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…”

Source: company website · checked Sep 4, 2026
5
Mango PartnersIndirect evidence
Cologne, GermanyHQ checked Sep 4, 202651-20026
Source: company website · checked Sep 4, 2026
6
Voxpark GmbhPartial evidence
Berlin, GermanyHQ checked Sep 4, 202651-20026

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

Source: company website · checked Sep 4, 2026
7
Triveo TelemarketingIndirect evidence
Mannheim, GermanyHQ checked Sep 4, 202651-20023

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

Source: company website · checked Sep 4, 2026
8
Digital DialogIndirect evidence
Heusenstamm, GermanyHQ checked Sep 4, 2026201-50023

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

Source: company website · checked Sep 4, 2026
9
Econ TEL GmbhIndirect evidence
Munster, GermanyHQ checked Sep 4, 202651-20023

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

Source: company website · checked Sep 4, 2026
10
B2B AcceleratorIndirect evidence
Falkenhardt, GermanyHQ checked Sep 4, 20261-1022

“Digitization and scaling through predictable new customer and employee acquisition.”

Source: company website · checked Sep 4, 2026
11
Care4as GmbhIndirect evidence
Flensburg, GermanyHQ checked Sep 4, 2026201-50021

“Callcenter-Services, Telesales, Kundenservice”

Source: company website · checked Sep 4, 2026
12
O.Phon GmbhIndirect evidence
Leipzig, GermanyHQ checked Sep 4, 202651-20020

“Den roten oder den blauen Draht kappen?”

Source: company website · checked Sep 4, 2026
13
Lead On GmbhStrong evidence
Potsdam, GermanyHQ checked Sep 4, 202651-20015

lead on has been the B2B specialist for lead generation and customer communication for over 20 years.”

Source: company website · checked Sep 4, 2026
14
Aveska Sales Solutions GmbhIndirect evidence
Friedrichsdorf, GermanyHQ checked Sep 4, 202611-5015

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

Source: company website · checked Sep 4, 2026
15
Lead Gate Media GmbhStrong evidence
Dusseldorf, GermanyHQ checked Sep 4, 202611-5014

Lead Gate Media is a performance marketing network focused on one thing.generating real customers.”

Source: company website · checked Sep 4, 2026
16
Telesales4u GmbhIndirect evidence
Bad Camberg, GermanyHQ checked Sep 4, 202611-5012

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

Source: company website · checked Sep 4, 2026
17
LeadtableIndirect evidence
Kempten, GermanyHQ checked Sep 4, 20261-1011

“Für Recruiting- und Leadgen-Agenturen: Gebrandetes Leadportal für deine Kunden - Erhöhe den Wert deiner Dienstleistung - Spare Zeit im Fulfillment - Erziele bessere…”

Source: company website · checked Sep 4, 2026
18
Grundwerk Digital GmbhIndirect evidence
Berlin, GermanyHQ checked Sep 4, 20261-1010

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

Source: company website · checked Sep 4, 2026
19
CBO MarketingIndirect evidence
Frankfurt Am Main, GermanyHQ checked Sep 4, 20261-109

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

Source: company website · checked Sep 4, 2026
20
Termitel GmbhStrong evidence
Ettlingen, GermanyHQ checked Sep 4, 202611-509

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

Source: company website · checked Sep 4, 2026
21
Krauss NeukundengewinnungIndirect evidence
Landsberg Am Lech, GermanyHQ checked Sep 4, 202611-507

“Steigere sofort deinen Umsatz – ohne Kaltakquise!”

Source: company website · checked Sep 4, 2026
22
LeadseekerIndirect evidence
Koln, GermanyHQ checked Sep 4, 20261-107

“Hallo!”

Source: company website · checked Sep 4, 2026
23
WT ManagementIndirect evidence
GermanyHQ checked Sep 4, 202611-507

“WT Management is a company based out of Germany.”

Source: company website · checked Sep 4, 2026
24
PrimestPartial evidence
Kulmbach, GermanyHQ checked Sep 4, 20261-106

“Die Menge der Leads sind nicht ausreichend oder stark schwankend, der Preis pro Lead zu hoch oder die Qualität mangelhaft?”

Source: company website · checked Sep 4, 2026
25
Leadfactory GmbhIndirect evidence
Hamburg, GermanyHQ checked Sep 4, 202611-506

“Die B2B LeadFactory ist ein führender Anbieter für digitale Geschäftsanbahnung und unterstützt B2B Unternehmen dabei, mit Hilfe intelligenter Daten neue Kunden für Ihre Produkte…”

Source: company website · checked Sep 4, 2026

Showing 25 of 212 lead generation call centers based in Germany

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Lead generation call centers based in Germany at a glance

As of Sep 4, 2026
1-10Median size (employees)
BerlinLargest hub · 23 HQs
51Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
131
11-50
50
51-200
26
201-500
3

Verified emails by last verification

0–30
0
31–60
27
61–90
214
90–180
131
180+
3

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 lead generation call centers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Germany whose own description of what they do matches “lead generation call centers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among lead generation 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 an evidence 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, 375 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 4, 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

How many lead generation call centers are there based in Germany?

RevenueBase identified 212 lead generation 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?

Dimarcon Gmbh, headquartered in Wiesbaden, tops this list with the largest team on record.

Which city has the most lead generation call centers?

Berlin leads with 23 headquartered companies, followed by Munchen (10) and Dusseldorf (9).

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 375 verified decision-maker contacts tracked across these 212 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 4, 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.