Company lists · Data refreshed September 2026

Top 25 Merger integration consulting firms based in Germany

RevenueBase identified 1,201 merger integration consulting firms headquartered in Germany as of September 2026 and tracks 9,929 professional contacts across them, including 3,917 with verified work emails. Berlin is the largest hub.

This list covers merger integration 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 28, 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 28, 2026 86% judged on-target in blind review
1,201Companies
9,929Contacts tracked
3,917Verified emails
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The 25 largest merger integration consulting firms based in Germany

Ranked by team size
Top 25 of 1,201 merger integration consulting firms based in Germany, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to merger integration 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceStuttgart, GermanyHQ checked Sep 28, 2026501-1,000988 contacts →

Indirect evidence

“As a leading consultancy for putting strategies into practice, we have a clear mission: we generate competitive advantage on the basis of measurable results.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceMünchen, GermanyHQ checked Sep 28, 202651-200504 contacts →

Partial evidence

“EAC - International Consulting.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceMunich, GermanyHQ checked Sep 28, 202651-200233 contacts →

Indirect evidence

“Fortlane Partners is a leading European advisory firm specializing in strategy, M&A, and transformation.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceKöln, GermanyHQ checked Sep 28, 202651-200207 contacts →

Indirect evidence

“RSM Ebner Stolz Management Consultants ist eine thematisch breit aufgestellte Top-Managementberatung mit Fokus auf mittelständische Unternehmen und Konzerne.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceFrankfurt, GermanyHQ checked Sep 28, 202651-200203 contacts →

Partial evidence

“FTI-Andersch ist die führende Beratung im Bereich Turnaround in Deutschland und Teil der internationalen FTI Consulting Gruppe.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceMunich, GermanyHQ checked Sep 28, 202651-200186 contacts →

Indirect evidence

“Dr.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceMunich, GermanyHQ checked Sep 28, 20261,001-5,000170 contacts →

Partial evidence

“Since December 5, 2023, Q_PERIOR and the leading French-based consulting firm Wavestone have joined forces to build a new global consulting powerhouse.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceMunich, GermanyHQ checked Sep 28, 2026501-1,000147 contacts →

Indirect evidence

“EFESO Management Consultants is the leading global pure player in operations strategy and performance improvement.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceMünchen, GermanyHQ checked Sep 28, 202651-200118 contacts →

Indirect evidence

“Managementberatung für CxOs Wir konzentrieren unsere Beratung auf die Nahtstelle von Strategie, Steuerung und Transformation - dort, wo sich der Erfolg des Unternehmens…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceBerlin, GermanyHQ checked Sep 28, 202651-200109 contacts →

Indirect evidence

“If you want to achieve ambitious business goals, you have to synchronize your IT with the business processes.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceMannheim, GermanyHQ checked Sep 28, 202651-20099 contacts →

Indirect evidence

“IMAP (International M&A Partners) ist eines der erfahrensten M&A Beratungsunternehmen für den Mittelstand.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceDüsseldorf, GermanyHQ checked Sep 28, 202651-20085 contacts →

Partial evidence

“ritzenhoefer & company is a leading strategy consulting firm specializing in digital transformation and innovation management.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceFrankfurt Am Main, GermanyHQ checked Sep 28, 202651-20084 contacts →

Partial evidence

“As a strategic partner to the CFO, GHK offers comprehensive consulting services in Finance, IT, HR and Procurement – enabling cross-functional alignment and sustainable business…”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceFrankfurt Am Main, GermanyHQ checked Sep 28, 202651-20078 contacts →

Indirect evidence

“Unsere Unternehmensberatung für Change Management hilft Ihnen, Transformationen schnell, strukturiert und sicher zu meistern.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceHamburg, GermanyHQ checked Sep 28, 202651-20076 contacts →

Indirect evidence

“Seit fast 25 Jahren ebnen wir für Unternehmen den Weg für positive Veränderungen.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceMünchen, GermanyHQ checked Sep 28, 2026201-50076 contacts →

Indirect evidence

“Wir managen.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceRatingen, GermanyHQ checked Sep 28, 202651-20075 contacts →

Partial evidence

“TARGUS is an international operational services Management Consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceKöln, GermanyHQ checked Sep 28, 202651-20072 contacts →

Indirect evidence

“Als purposegetriebene Unternehmensberatung mit bewusst hoher Fluktuation bringt OSCAR durch ein kontinuierlich erneuertes, junges Team Energie, Neugier und frische Impulse in…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceDüsseldorf, GermanyHQ checked Sep 28, 202651-20072 contacts →

Indirect evidence

“People before Numbers" Erst der Mensch, dann die Lösung.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceCrailsheim, GermanyHQ checked Sep 28, 202651-20068 contacts →

Partial evidence

“Since 2008, Consistency has been a consulting partner for national and international companies in multiple sectors.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceMunich, GermanyHQ checked Sep 28, 202651-20068 contacts →

Indirect evidence

“T60, established by industry veterans, brings together decades of experience and business expertise.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceHamburg, GermanyHQ checked Sep 28, 202611-5056 contacts →

Partial evidence

“ComfNet Solutions GmbH is a Germany-headquartered business consulting and technology solutions firm enabling sustainable cross-border growth between Germany, India, and the GCC.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceStuttgart, GermanyHQ checked Sep 28, 202651-20055 contacts →

Indirect evidence

“Bachert Unternehmensberatung GmbH & Co.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceMunich, GermanyHQ checked Sep 28, 202651-20053 contacts →

Partial evidence

“Bei LEITWERK Consulting unterstützen wir seit 2010 Unternehmen dabei, Projekte erfolgreich umzusetzen, Prozesse zu optimieren und Transformationen nachhaltig zu gestalten.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceMunich, GermanyHQ checked Sep 28, 202611-5053 contacts →

Indirect evidence

“Mit Innovationskraft und ausgeprägtem Machbarkeitsdenken engagieren wir uns für funktionierende Businesslösungen.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,201 merger integration consulting firms based in Germany

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Merger integration consulting firms based in Germany at a glance

As of Sep 28, 2026
39.5%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
8.5%Largest-city concentration · Berlin
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
875
11-50
246
51-200
61
201-500
5
501-1,000
5
1,001-5,000
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 1,201 companies.

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 merger integration 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 “merger integration 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 merger integration 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 merger integration 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, 3,917 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 28, 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

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 merger integration 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 merger integration consulting firms are there based in Germany?

RevenueBase identified 1,201 merger integration 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?

Porsche Consulting, headquartered in Stuttgart, tops this list with the largest team on record.

Which city has the most merger integration consulting firms?

Berlin leads with 102 headquartered companies, followed by Hamburg (100) and Munchen (83).

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 3,917 verified decision-maker contacts tracked across these 1,201 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 28, 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.