Company lists · Data refreshed September 2026

Top 25 Iso 27001 consulting firms based in Germany

RevenueBase identified 557 company matches for iso 27001 consulting firms associated with Germany as of September 2026 and tracks 2,943 professional contacts across them, including 1,285 with verified work emails. Berlin is the largest hub.

This list covers company matches for iso 27001 consulting firms associated with Germany, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
557Companies
2,943Contacts tracked
1,285Verified emails
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The 25 largest iso 27001 consulting firms based in Germany

Ranked by team size
Top 25 of 557 company matches for iso 27001 consulting firms based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNeu-isenburg, GermanyHQ recorded Sep 28, 202651-200130 contacts →

Exact match

“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchPaderborn, GermanyHQ recorded Sep 28, 202651-20081 contacts →

Exact match

“neam IT-Services GmbH – founded in 1996 – is a Systems Integrator based in Paderborn, Germany and operating in various projects all over Europe.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchHamburg, GermanyHQ recorded Sep 28, 202651-20071 contacts →

Exact match

“intersoft consulting ist ein spezialisiertes Beratungsunternehmen in den Bereichen Datenschutz, IT-Sicherheit und IT-Forensik.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchBonn, GermanyHQ recorded Sep 28, 202651-20067 contacts →

Exact match

“SRC Security Research & Consulting is committed to providing service in the areas of information technology and information security.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchBerlin, GermanyHQ recorded Sep 28, 202651-20051 contacts →

Exact match

“proXcel is a specialized management consultancy focused on information security and digital resilience.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchDarmstadt, GermanyHQ recorded Sep 28, 202651-20041 contacts →

Exact match

“Willkommen bei KOGIT.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchHamburg, GermanyHQ recorded Sep 28, 202651-20040 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchLangenfeld, GermanyHQ recorded Sep 28, 202611-5037 contacts →

Exact match

“As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchMannheim, GermanyHQ recorded Sep 28, 202651-20033 contacts →

Exact match

“SAMA PARTNERS Business Solutions ist ein unabhängiges Beratungs- und Engineering-Unternehmen mit Hauptsitz in Mannheim, mit den Schwerpunkten Informationssicherheit, KI und…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchHeidelberg, GermanyHQ recorded Sep 28, 202611-5032 contacts →

Exact match

“ERNW ist ein unabhängiger IT-Security Dienstleister mit Sitz in Heidelberg.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchAugsburg, GermanyHQ recorded Sep 28, 202611-5031 contacts →

Exact match

“ausecus GmbH delivers IT-Security Consulting and Managed Services for critical infrastructure organisations (KRITIS).”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchMunich, GermanyHQ recorded Sep 28, 202611-5028 contacts →

Exact match

“Viele Unternehmen jonglieren mit Insellösungen: TISAX hier, Datenschutz dort, dann kommt EcoVadis, KI-Tools oder eine ISO-Norm.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchMunich, GermanyHQ recorded Sep 28, 202611-5028 contacts →

Exact match

“Simplifying Your Security Journey Welcome to mgm security partners GmbH – your reliable partner for simple and effective IT security solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchLübeck, GermanyHQ recorded Sep 28, 202611-5027 contacts →

Exact match

“FKC Consult - für Sie vor Ort seit 1997 Die FKC CONSULT steht für ein Beratungsunternehmen, das mit allen Instrumenten moderner Beratungsdienstleistung unseren Kunden…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchBad Oldesloe, GermanyHQ recorded Sep 28, 202611-5023 contacts →

Exact match

“Aus s-consit wird ETL consit.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchRohrbach, GermanyHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“We, Syngenity®, are specialists in consulting around the introduction of an information management system according to the current TISAX® standard, including prototype protection…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchHutthurm, GermanyHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“More than 20 years of experience have teached us the importance of data protection and IT security in companies.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchHanover, GermanyHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“Althammer & Kill – Ihr Partner für Datenschutz, Informationssicherheit, Compliance und Künstliche Intelligenz (KI).”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchFrankfurt, GermanyHQ recorded Sep 28, 202611-5020 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchKiel, GermanyHQ recorded Sep 28, 202611-5020 contacts →

Exact match

“Authentisch, bodenständig, ehrlich – eben echt norddeutsch – plant und implementiert die lmbit GmbH optimale IT-Lösungen für Sie!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchMunich, GermanyHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“Die DECURA Gruppe wurde bereits 1996 gegründet und unterstützt seitdem mehr als 100 Unternehmen in 13 Ländern auf vier Kontinenten.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchHerford, GermanyHQ recorded Sep 28, 202611-5019 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchUlm, GermanyHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“SCHUTZWERK GmbH is an international IT security consultancy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchEssen, GermanyHQ recorded Sep 28, 202611-5018 contacts →

Exact match

“TTS is a security consulting company specialised on business continuity and crisis management, information security management systems (incl.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchCologne, GermanyHQ recorded Sep 28, 202651-20018 contacts →

Exact match

“Durch unsere Beratung helfen wir unseren Kunden die Sicherheit und Effizienz ihrer IT nachhaltig zu steigern und ihre IT-Risiken zu kontrollieren.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 557 iso 27001 consulting firms based in Germany

See the full list, filter by size, metro and specialty, and access 1,285 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Iso 27001 consulting firms based in Germany at a glance

As of Sep 28, 2026
43.7%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
7.4%Largest-city concentration · Berlin
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
378
11-50
155
51-200
17
201-500
3

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 557 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Germany whose business descriptions match “iso 27001 consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,285 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Iso 27001 consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “iso 27001 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso 27001 consulting firms are there based in Germany?

RevenueBase identified 557 company matches for iso 27001 consulting firms associated with Germany as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

USD AG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most iso 27001 consulting firms?

Berlin leads with 41 company records, followed by Munich (32) and Hamburg (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,285 professional contacts with verified work emails tracked across these 557 companies; direct dials are available where recorded.

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 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.