Company lists · Data refreshed September 2026

Top 25 Customer service consulting firms based in Germany

Name: Customer service consulting firms based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 1,906 companies tracked

RevenueBase identified 1,906 customer service consulting firms headquartered in Germany as of September 2026 and tracks 12,037 professional contacts across them, including 3,894 with verified work emails and 343 with mobile numbers. Berlin is the largest hub.

This list covers customer service consulting firms 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 24, 2026 86% judged on-target in blind review

1,906Companies

12,037Contacts tracked

3,894Verified emails

343Mobile numbers

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The 25 largest customer service consulting firms based in Germany

Ranked by team size

Top 25 of 1,906 customer service consulting firms based in Germany, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to customer service consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	RPC	Strong evidence	Munich, GermanyHQ checked Sep 24, 2026	201-500	336 contacts →
	Strong evidence “We are The Retail Performance Company (rpc), the consulting firm dedicated to the entire process of customer-centric transformation: from strategy, via customer experience design…” Source: RevenueBase Database · checked Sep 24, 2026
2	Atos Information Technology Gmbh	Partial evidence	Düsseldorf, GermanyHQ checked Sep 24, 2026	10001+	251 contacts →
	Partial evidence “Atos Information Technology GmbH is a management consulting company” Source: RevenueBase Database · checked Sep 24, 2026
3	HPP Strategy And Marketing Consulting	Partial evidence	Frankfurt, GermanyHQ checked Sep 24, 2026	51-200	238 contacts →
	Partial evidence “HPP Strategy and Marketing Consulting was established in 1996 as part of a management buyout from today's Daimler AG.” Source: RevenueBase Database · checked Sep 24, 2026
4	MSR Consulting Group Gmbh	Indirect evidence	Köln, GermanyHQ checked Sep 24, 2026	n/a	223 contacts →
	Indirect evidence “Wir fokussieren uns auf die Branchen Automobil- und Fahrzeugbau, Industrie (insbes.” Source: RevenueBase Database · checked Sep 24, 2026
5	Sybit Gmbh	Strong evidence	Radolfzell, GermanyHQ checked Sep 24, 2026	201-500	212 contacts →
	Strong evidence “SYBIT is Europe's leading full-service provider for customer experience (CX) with comprehensive expertise in business consulting, process consulting and IT consulting.” Source: RevenueBase Database · checked Sep 24, 2026
6	Viadee Unternehmensberatung AG	Indirect evidence	Münster, GermanyHQ checked Sep 24, 2026	201-500	186 contacts →
	Indirect evidence “Wir sind eine IT-Unternehmensberatung mit mehr als 130 Mitarbeitern, die sich mit Begeisterung und innovativen Ideen den Aufgaben und Herausforderungen unserer Kunden stellen.” Source: RevenueBase Database · checked Sep 24, 2026
7	MUUUH	Strong evidence	Osnabrück, GermanyHQ checked Sep 24, 2026	201-500	168 contacts →
	Strong evidence “Consulting, Technology & Solutions für Customer Service, Sales & Marketing Wir sind überzeugt: Echter Erfolg entsteht dort, wo Unternehmen ihre Kund:innen konsequent in den…” Source: RevenueBase Database · checked Sep 24, 2026
8	BU ST Group Gmbh	Indirect evidence	Munich, GermanyHQ checked Sep 24, 2026	51-200	152 contacts →
	Indirect evidence “Die [bu:st] group GmbH ist ein erfolgreich wachsendes Beratungsunternehmen in München mit Schwerpunkten im Bereich der Analyse, Optimierung und Unterstützung von Entwicklungs- und…” Source: RevenueBase Database · checked Sep 24, 2026
9	Itsm Group	Partial evidence	Bodenheim, GermanyHQ checked Sep 24, 2026	201-500	147 contacts →
	Partial evidence “The iTSM Group consists of iTSM Consulting GmbH, founded in as the parent company, and its wholly-owned subsidiaries iTSM-Solutions GmbH, iTSM Trusted Quality GmbH, Trusted…” Source: RevenueBase Database · checked Sep 24, 2026
10	infinit.cx	Partial evidence	Munich, GermanyHQ checked Sep 24, 2026	51-200	136 contacts →
	Partial evidence “infinit.cx group - The Customer Experience Powerhouse DIE Experten für gelungenen Omnikanal-Kundenservice durch Customer-Experience (CX) mit über 40 Jahren Erfahrung in der der…” Source: RevenueBase Database · checked Sep 24, 2026
11	Mackevision, Part Of Accenture Song	Partial evidence	Stuttgart, GermanyHQ checked Sep 24, 2026	10001+	124 contacts →
	Partial evidence “Accenture Song accelerates growth and value for our clients through sustained customer relevance.” Source: RevenueBase Database · checked Sep 24, 2026
12	M3 Management Consulting Gmbh	Partial evidence	Ismaning/münchen, GermanyHQ checked Sep 24, 2026	51-200	108 contacts →
	Partial evidence “m3 management consulting is a consultancy focused around the network industry (such as utilities and telecommunications), that combines traditional management consulting and…” Source: RevenueBase Database · checked Sep 24, 2026
13	Exciting AG	Indirect evidence	Neu-Isenburg, GermanyHQ checked Sep 24, 2026	201-500	88 contacts →
	Indirect evidence “Die exciting AG hat sich auf die Abbildung und Gestaltung von hochwertigen DialogCenter und ServiceCenter-Prozesse spezialisiert.” Source: RevenueBase Database · checked Sep 24, 2026
14	Riverland Reply	Strong evidence	München, GermanyHQ checked Sep 24, 2026	51-200	85 contacts →
	Strong evidence “Riverland Reply is the Reply group company specialized in consulting end-to-end customer-oriented solutions and strategies.” Source: RevenueBase Database · checked Sep 24, 2026
15	Flaixible Gmbh	Indirect evidence	Aachen, GermanyHQ checked Sep 24, 2026	201-500	79 contacts →
	Indirect evidence “Flaixible ist ein junges, dynamisches und ambitioniertes Unternehmen.” Source: RevenueBase Database · checked Sep 24, 2026
16	Myvi Group	Indirect evidence	Hannover, GermanyHQ checked Sep 24, 2026	201-500	78 contacts →
	Indirect evidence “Durch die gebündelten Kompetenzen von acht innovativen Unternehmen gelingt es, eine ganzheitliche Beratung für Mandanten zu bieten.” Source: RevenueBase Database · checked Sep 24, 2026
17	Defacto	Indirect evidence	Erlangen, GermanyHQ checked Sep 24, 2026	201-500	76 contacts →
	Indirect evidence “Wir sind führende Business Consultancy & IT Solution Integrator im Kundenmanagement.” Source: RevenueBase Database · checked Sep 24, 2026
18	Team HY	Indirect evidence	Hamburg, GermanyHQ checked Sep 24, 2026	n/a	73 contacts →
	Indirect evidence “recruiting.” Source: RevenueBase Database · checked Sep 24, 2026
19	Grey Solutions Gmbh	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 24, 2026	51-200	72 contacts →
	Indirect evidence “People before Numbers" Erst der Mensch, dann die Lösung.” Source: RevenueBase Database · checked Sep 24, 2026
20	IP Dynamics Gmbh	Indirect evidence	Hamburg, GermanyHQ checked Sep 24, 2026	51-200	70 contacts →
	Indirect evidence “Kundenservice ist der Schlüssel zu einem nachhaltigen wirtschaftlichen Erfolg und langfristiger Kundenbindung.” Source: RevenueBase Database · checked Sep 24, 2026
21	Passcon Gmbh	Indirect evidence	Hamburg, GermanyHQ checked Sep 24, 2026	51-200	69 contacts →
	Indirect evidence “Passcon is now AML RightSource.” Source: RevenueBase Database · checked Sep 24, 2026
22	MEC Group	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 24, 2026	51-200	68 contacts →
	Indirect evidence “MEC GROUP focuses on the automotive, IT, telecommunications and government sectors.” Source: RevenueBase Database · checked Sep 24, 2026
23	consult.hn	Indirect evidence	Heilbronn, GermanyHQ checked Sep 24, 2026	51-200	65 contacts →
	Indirect evidence “Consult.HN ist eine studentische Unternehmensberatung aus Heilbronn.” Source: RevenueBase Database · checked Sep 24, 2026
24	Iskander Business Partner	Strong evidence	Ismaning, GermanyHQ checked Sep 24, 2026	51-200	57 contacts →
	Strong evidence “Iskander Business Partner is an owner-managed consulting firm specializing in Customer Centricity, Data Based Marketing & Sales, Digital Excellence and Smart Products &…” Source: RevenueBase Database · checked Sep 24, 2026
25	Comvendo Gmbh	Indirect evidence	Oberhausen, GermanyHQ checked Sep 24, 2026	501-1,000	56 contacts →
	Indirect evidence “Gegründet um anders zu sein.” Source: RevenueBase Database · checked Sep 24, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: customer service consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names customer service consulting firms.
Partial evidence: Its own public description names part of customer service consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer service consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,906 customer service consulting firms based in Germany

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Customer service consulting firms based in Germany at a glance

As of Sep 24, 2026

32.4%Verified-email coverage

2.8%Mobile-number coverage

6.3Average contacts per company

1-10Median size (employees)

7.2%Largest-city concentration · Berlin

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

1,351

11-50

387

51-200

103

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

2,9500–30

85731–60

6361–90

490–180

20180+

Company record updated

Median 78.0d

00–30

3,69431–60

4,74161–90

2,98990–180

613180+

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 customer service consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Germany whose own description of what they do matches “customer service consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names customer service consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among customer service consulting firms, 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 its RevenueBase Smart Search 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, 3,894 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 24, 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.

Customer service consulting firms by metro

Customer service consulting firms in Berlin137
Customer service consulting firms in Hamburg133
Customer service consulting firms in Munchen91
Customer service consulting firms in Dusseldorf79
Customer service consulting firms in Munich52
Customer service consulting firms in Koln46
Customer service consulting firms in Stuttgart35
Customer service consulting firms in Frankfurt26
Customer service consulting firms in Frankfurt Am Main25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names customer service consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many customer service consulting firms are there based in Germany?

RevenueBase identified 1,906 customer service consulting firms 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?

RPC, headquartered in Munich, tops this list with the largest team on record.

Which city has the most customer service consulting firms?

Berlin leads with 137 headquartered companies, followed by Hamburg (133) and Munchen (91).

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 3,894 verified decision-maker contacts tracked across these 1,906 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 24, 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 Smart Search, 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.