Company lists · Data refreshed September 2026

Top 25 IT audits and consulting services based in Germany

RevenueBase identified 499 IT audits and consulting services headquartered in Germany as of September 2026 and tracks 4,836 professional contacts across them, including 2,365 with verified work emails. Berlin is the largest hub.

This list covers IT audits and consulting services 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 21, 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 21, 2026 86% judged on-target in blind review
499Companies
4,836Contacts tracked
2,365Verified emails
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The 25 largest IT audits and consulting services based in Germany

Ranked by team size
Top 25 of 499 IT audits and consulting services based in Germany, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT audits and consulting services: 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 21, 20261,001-5,0001,442 contacts →

Indirect evidence

“Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?”

Source: RevenueBase Database · checked Sep 21, 2026
2Strong evidenceBerlin, GermanyHQ checked Sep 21, 2026501-1,000335 contacts →

Strong evidence

“PKF Fasselt is one of Germany’s leading mid-sized auditing and consulting firms.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceStuttgart, GermanyHQ checked Sep 21, 2026201-500112 contacts →

Indirect evidence

“Die PKF Wulf Gruppe ist eine der führenden mittelständischen Prüfungs- und Beratungsgesellschaften.”

Source: RevenueBase Database · checked Sep 21, 2026
4Strong evidenceMünchen, GermanyHQ checked Sep 21, 2026201-500110 contacts →

Strong evidence

“Kleeberg is a national and internationally active auditing and tax consulting firm based in Munich.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceKarlsruhe, GermanyHQ checked Sep 21, 2026201-50088 contacts →

Indirect evidence

“dhmp – auch wenn es komplex wird Seit mehr als 50 Jahren sind wir unabhängige Wirtschaftsprüfungs- und Steuerberatungsgesellschaft mit den Beratungsfeldern Steuern…”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceGermanyHQ checked Sep 21, 202611-5065 contacts →

Indirect evidence

“Ernst & Young GmbH Wirtschaftsprüfungsgesellschaft is a veterinary company based out of 78 Rothenbaumchaussee, Hamburg-Rotherbaum, Germany.”

Source: RevenueBase Database · checked Sep 21, 2026
7Strong evidenceLangenfeld (rheinland), GermanyHQ checked Sep 21, 202651-20063 contacts →

Strong evidence

“We, mispa Technologies GmbH, a leading IT security and service provider, deliver consulting, design and managed services to help our customers get the most out of their IT…”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceMünchen, GermanyHQ checked Sep 21, 202651-20061 contacts →

Indirect evidence

“TRUSTEQ GmbH bietet Beratungsleistungen mit Fokus auf AI, Cybersecurity, Data & Tech Transformation und Cloud an - ACDC!”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceGarching, GermanyHQ checked Sep 21, 202651-20046 contacts →

Partial evidence

“HvS-Consulting AG is consulting large and medium-sized companies on the topic of cyber security since 2002.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceDüsseldorf, GermanyHQ checked Sep 21, 202651-20042 contacts →

Indirect evidence

“Die Crowe BPG wurde 1979 in Krefeld gegründet und erschließt sich inzwischen auf die Standorte Düsseldorf und Berlin.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceEssen, GermanyHQ checked Sep 21, 202611-5040 contacts →

Indirect evidence

“What we do: IVC - Agile.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceHamburg, GermanyHQ checked Sep 21, 202651-20040 contacts →

Indirect evidence

“BDO Cyber Security GmbH is your competent partner in all in all cyber security matters.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidence71711, GermanyHQ checked Sep 21, 202651-20038 contacts →

Partial evidence

“Als herstellerunabhängiger Partner für IT-Beratung und Services liegt uns viel daran, Fachbereiche und IT gemeinsam ins Boot zu holen, um eine nachhaltige Ausrichtung des…”

Source: RevenueBase Database · checked Sep 21, 2026
14Strong evidenceSarnen, GermanyHQ checked Sep 21, 202611-5037 contacts →

Strong evidence

“The Swiss Quality Consulting (TSQ) specializes in IT consultancy, helping businesses optimize their digital infrastructure, enhance operational efficiency, and implement scalable…”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceNeu-Isenburg, GermanyHQ checked Sep 21, 202651-20034 contacts →

Indirect evidence

“Wir sind die Com-Sys!”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceFrankfurt Am Main, GermanyHQ checked Sep 21, 202611-5034 contacts →

Indirect evidence

“Die GAR Gesellschaft für Aufsichtsrecht und Revision mbH Wirtschaftsprüfungsgesellschaft mit Sitz in Frankfurt am Main wurde im Juli 2009 gegründet.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceBerlin, GermanyHQ checked Sep 21, 202611-5027 contacts →

Indirect evidence

“A passionate approach to technology combined with solid digital skills and expertise is our answer to the constant new challenges arising in the world of information technology.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceEssen, GermanyHQ checked Sep 21, 202651-20024 contacts →

Indirect evidence

“Als eine der führenden, unabhängigen Wirtschaftsprüfungs- und Steuerberatungsgesellschaften im Ruhrgebiet beraten wir mittelständische Unternehmen, börsennotierte Gesellschaften…”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceBad Oldesloe, GermanyHQ checked Sep 21, 202611-5023 contacts →

Indirect evidence

“Aus s-consit wird ETL consit.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceBonn, GermanyHQ checked Sep 21, 202611-5023 contacts →

Indirect evidence

“CebiCon GmbH is an information technology and services company based out of Schloßallee 10, Bonn, North Rhine-Westphalia, Germany.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceFrankfurt, GermanyHQ checked Sep 21, 202611-5020 contacts →

Indirect evidence

“secori advisors is a management consultancy with a focus on security, risk, and compliance.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceStraubing, GermanyHQ checked Sep 21, 202611-5020 contacts →

Partial evidence

“TAP.DE Solutions GmbH (seit 2007) berät Unternehmen bei der Gestaltung smarter, sicherer IT-Workplaces und verbindet Compliance, Prozessoptimierung und Anwenderfreundlichkeit mit…”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceLangen, GermanyHQ checked Sep 21, 202611-5019 contacts →

Indirect evidence

“Das Leistungsspektrum der BRISTOL GROUP reicht von der Beratung über die Konzeption, Implementierung und Integration von Software- und Hardware-Lösungen bis hin zu Schulung und…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceCologne, GermanyHQ checked Sep 21, 202611-5019 contacts →

Indirect evidence

“ü, ä Regulatorische Vorgaben wie DORA und NIS2, zunehmende Cyber-Risiken und steigender Kostendruck erfordern präzises Handeln.”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceHerford, GermanyHQ checked Sep 21, 202611-5019 contacts →

Partial evidence

“Ihr zuverlässiger Partner für Consulting, Training und Services im Bereich Datenschutz und Informationssicherheit.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 499 IT audits and consulting services based in Germany

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IT audits and consulting services based in Germany at a glance

As of Sep 21, 2026
48.9%Verified-email coverage
9.7Average contacts per company
1-10Median size (employees)
7.0%Largest-city concentration · Berlin
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
301
11-50
156
51-200
20
201-500
7
501-1,000
1
1,001-5,000
2
5,001-10,000
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 499 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 IT audits and consulting services, 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 “IT audits and consulting services”. 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 IT audits and consulting services), 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 IT audits and consulting services, 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, 2,365 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 21, 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.

IT audits and consulting services by metro

  • IT audits and consulting services in Berlin35
  • IT audits and consulting services in Munchen25

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 IT audits and consulting services, 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 IT audits and consulting services are there based in Germany?

RevenueBase identified 499 IT audits and consulting services 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?

RSM Ebner Stolz, headquartered in Stuttgart, tops this list with the largest team on record.

Which city has the most IT audits and consulting services?

Berlin leads with 35 headquartered companies, followed by Munchen (25) and Hamburg (23).

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 2,365 verified decision-maker contacts tracked across these 499 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 21, 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.