Company lists · Data verified August 2026

Top 9 Customer success outsourcing companies based in Germany

Name: Customer success outsourcing companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 25 companies tracked

There are 25 customer success outsourcing companies headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 558 professional contacts across them, including 77 with verified work emails and 12 with mobile numbers. Berlin is the largest hub.

This list covers customer success outsourcing 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.

25Companies

558Contacts tracked

77Verified emails

12Mobile numbers

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The 9 largest customer success outsourcing companies based in Germany

Ranked by team size

Top 9 of 25 customer success outsourcing 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	Comvendo Gmbh	Oberhausen	501-1,000	57	11
3	Custify	Munich	11-50	37	18
4	Loyaltyeffect Gmbh	Unterfohring	51-200	21	6
5	Makotel Gmbh	Sondershausen	51-200	6	2
6	Comcare 360 Gmbh	Ahrensburg	51-200	4	3
7	Venmate	Berlin	1-10	3	2
8	Intensifai	Berlin	1-10	1	1
9	Heinze-Consulting	Feldkirchen-Westerham	1-10	1	1

Showing 9 of 25 customer success outsourcing companies based in Germany

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Customer success outsourcing companies based in Germany at a glance

As of Aug 28, 2026

1-10Median size (employees)

BerlinLargest hub · 4 HQs

12Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

5,001-10,000

Customer success outsourcing companies by metro

Metro	Companies
Customer success outsourcing companies in Berlin	4
Customer success outsourcing companies in Ludwigsburg	2
Customer success outsourcing companies in Pulheim	1
Customer success outsourcing companies in Neustrelitz	1
Customer success outsourcing companies in Bochum	1
Customer success outsourcing companies in Oberhausen	1
Customer success outsourcing companies in Dortmund	1
Customer success outsourcing companies in Rostock	1

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 success outsourcing 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; 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 success outsourcing companies are there based in Germany?

There are 25 customer success outsourcing 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 customer success outsourcing companies?

Berlin leads with 4 headquartered companies, followed by Ludwigsburg (2) and Pulheim (1).

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 77 verified decision-maker contacts tracked across these 25 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.