Company lists · Data refreshed September 2026

Top 25 IT advisory consulting firms based in Germany

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

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 3,336 companies tracked

RevenueBase identified 3,336 IT advisory consulting firms headquartered in Germany as of September 2026 and tracks 69,732 professional contacts across them, including 28,816 with verified work emails and 1,221 with mobile numbers. Berlin is the largest hub.

This list covers IT advisory 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 26, 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 26, 2026 86% judged on-target in blind review

3,336Companies

69,732Contacts tracked

28,816Verified emails

1,221Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest IT advisory consulting firms based in Germany

Ranked by team size

Top 25 of 3,336 IT advisory consulting firms based in Germany, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to IT advisory 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	T-Systems International	Indirect evidence	Frankfurt Am Main, GermanyHQ checked Sep 26, 2026	10001+	10,154 contacts →
	Indirect evidence “Your digitalization partner with industry expertise With locations in more than 26 countries and over employees (2024), T-Systems is one of the leading providers of digital…” Source: RevenueBase Database · checked Sep 26, 2026
2	Accenture Dach	Indirect evidence	Kronberg Im Taunus, GermanyHQ checked Sep 26, 2026	10001+	3,644 contacts →
	Indirect evidence “Über Accenture: Wir sind die weltweit führenden Berater für Strategie, Management, Digitalisierung, Technologie, Outsourcing und Business Transformation.” Source: RevenueBase Database · checked Sep 26, 2026
3	Arvato Systems	Indirect evidence	Gütersloh, GermanyHQ checked Sep 26, 2026	1,001-5,000	2,537 contacts →
	Indirect evidence “We are Arvato Systems - and we live digitalization.” Source: RevenueBase Database · checked Sep 26, 2026
4	RSM Ebner Stolz	Indirect evidence	Stuttgart, GermanyHQ checked Sep 26, 2026	1,001-5,000	1,442 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 26, 2026
5	Valantic	Partial evidence	80801, GermanyHQ checked Sep 26, 2026	1,001-5,000	1,271 contacts →
	Partial evidence “About valantic valantic is one of the fastest growing digital solutions, consulting, and software companies on the market.” Source: RevenueBase Database · checked Sep 26, 2026
6	Materna	Partial evidence	Dortmund, GermanyHQ checked Sep 26, 2026	1,001-5,000	1,196 contacts →
	Partial evidence “Als international erfolgreicher IT-Dienstleister beraten und begleiten wir Unternehmen und Behörden in allen Belangen der Digitalisierung.” Source: RevenueBase Database · checked Sep 26, 2026
7	Umlaut Company	Indirect evidence	Aachen, GermanyHQ checked Sep 26, 2026	1,001-5,000	1,195 contacts →
	Indirect evidence “Accenture is a leading global professional services company that helps the world’s leading businesses, governments and other organizations build their digital core, optimize their…” Source: RevenueBase Database · checked Sep 26, 2026
8	Horváth	Indirect evidence	Stuttgart, GermanyHQ checked Sep 26, 2026	1,001-5,000	1,193 contacts →
	Indirect evidence “Horváth is a global, independent management consultancy with more than 1,400 employees at locations in Europe, the USA, and other global markets.” Source: RevenueBase Database · checked Sep 26, 2026
9	NETGO	Indirect evidence	Berlin, GermanyHQ checked Sep 26, 2026	1,001-5,000	957 contacts →
	Indirect evidence “netgo entwickelt Strategien und Lösungen, die Menschen und ihr Business erfolgreich machen.” Source: RevenueBase Database · checked Sep 26, 2026
10	Exxeta	Partial evidence	Karlsruhe, GermanyHQ checked Sep 26, 2026	1,001-5,000	946 contacts →
	Partial evidence “Exxeta is a technology and consulting company with a passion for innovation.” Source: RevenueBase Database · checked Sep 26, 2026
11	BCG Platinion	Indirect evidence	Cologne, GermanyHQ checked Sep 26, 2026	1,001-5,000	925 contacts →
	Indirect evidence “At BCG Platinion, we leverage our expertise alongside the unique experiences of our teams to accelerate digital transformations for our clients.” Source: RevenueBase Database · checked Sep 26, 2026
12	WTS Deutschland	Partial evidence	München, GermanyHQ checked Sep 26, 2026	1,001-5,000	882 contacts →
	Partial evidence “WTS ist ein globaler Full-Service Anbieter für Steuerberatungsleistungen und Financial & Deal Advisory.” Source: RevenueBase Database · checked Sep 26, 2026
13	BTC	Partial evidence	Oldenburg, GermanyHQ checked Sep 26, 2026	1,001-5,000	833 contacts →
	Partial evidence “We are more than the sum of many IT experts, consultants, software developers and system administrators.” Source: RevenueBase Database · checked Sep 26, 2026
14	Senacor Technologies	Strong evidence	Eschborn, GermanyHQ checked Sep 26, 2026	1,001-5,000	787 contacts →
	Strong evidence “Senacor is part of the 25 leading IT-Consulting companies and among the Top 5 of the medium-sized IT-Service providers in Germany and runs 10 offices in Austria, Switzerland…” Source: RevenueBase Database · checked Sep 26, 2026
15	Baker Tilly Germany	Strong evidence	Düsseldorf, GermanyHQ checked Sep 26, 2026	1,001-5,000	745 contacts →
	Strong evidence “With employees in 146 countries, Baker Tilly provides a broad range of innovative and individual consulting services in the areas of Audit & Advisory, Tax, Legal and Consulting…” Source: RevenueBase Database · checked Sep 26, 2026
16	Maibornwolff Gmbh	Strong evidence	München, GermanyHQ checked Sep 26, 2026	501-1,000	728 contacts →
	Strong evidence “MaibornWolff has been inspiring clients from all industries in IT consulting, software engineering and test management for over 30 years.” Source: RevenueBase Database · checked Sep 26, 2026
17	Detecon	Indirect evidence	Cologne, GermanyHQ checked Sep 26, 2026	1,001-5,000	721 contacts →
	Indirect evidence “Detecon makes the future possible, digital, interconnected, and human.” Source: RevenueBase Database · checked Sep 26, 2026
18	CONET	Indirect evidence	Bonn, GermanyHQ checked Sep 26, 2026	1,001-5,000	718 contacts →
	Indirect evidence “Leading forward: conet is the reliable digitalization partner for public administration, the defense sector, and companies in the automotive, finance & insurance, energy &…” Source: RevenueBase Database · checked Sep 26, 2026
19	Metafinanz	Strong evidence	Munich, GermanyHQ checked Sep 26, 2026	501-1,000	673 contacts →
	Strong evidence “For over 35 years, metafinanz Informationssysteme GmbH, a business and IT consulting company, has been at the side of its customers in an increasingly digital and dynamic world.” Source: RevenueBase Database · checked Sep 26, 2026
20	Cloudflight	Indirect evidence	Munich, GermanyHQ checked Sep 26, 2026	501-1,000	608 contacts →
	Indirect evidence “Cloudflight is one of the leading full-service providers in the field of industrial digital transformation.” Source: RevenueBase Database · checked Sep 26, 2026
21	Convista	Indirect evidence	Walldorf, GermanyHQ checked Sep 26, 2026	501-1,000	553 contacts →
	Indirect evidence “Convista is one of the leading consultancies for business transformation.” Source: RevenueBase Database · checked Sep 26, 2026
22	Bridgingit	Indirect evidence	Mannheim, GermanyHQ checked Sep 26, 2026	501-1,000	489 contacts →
	Indirect evidence “Die BridgingIT GmbH mit Sitz in Mannheim besteht seit 2008 und bildet, gemeinsam mit unseren Tochterunternehmen fastahead GmbH & Co.” Source: RevenueBase Database · checked Sep 26, 2026
23	Infomotion Gmbh	Partial evidence	Frankfurt Am Main, GermanyHQ checked Sep 26, 2026	501-1,000	447 contacts →
	Partial evidence “INFOMOTION GmbH, headquartered in Frankfurt am Main, is the leading consulting company for data performance: From data analytics to digital transformation, more than 420…” Source: RevenueBase Database · checked Sep 26, 2026
24	Iteratec	Indirect evidence	München, GermanyHQ checked Sep 26, 2026	201-500	404 contacts →
	Indirect evidence “With more than successful projects, iteratec is one of the leading experts for digital product innovation, software and architecture development, and digital infrastructures.” Source: RevenueBase Database · checked Sep 26, 2026
25	Cassini Consulting AG	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 26, 2026	201-500	399 contacts →
	Indirect evidence “Cassini steht für wegweisende Management- und Technologieberatung.” Source: RevenueBase Database · checked Sep 26, 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: IT advisory 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 IT advisory consulting firms.
Partial evidence: Its own public description names part of IT advisory consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT advisory 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 3,336 IT advisory consulting firms based in Germany

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 28,816 reachable decision-makers.

Free signup · no credit card

View the full list →

IT advisory consulting firms based in Germany at a glance

As of Sep 26, 2026

41.3%Verified-email coverage

1.8%Mobile-number coverage

20.9Average contacts per company

1-10Median size (employees)

7.5%Largest-city concentration · Berlin

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

1,986

11-50

908

51-200

282

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

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

Email last verified

Median 29.0d

18,7190–30

9,31531–60

54861–90

1290–180

222180+

Company record updated

Median 77.0d

00–30

21,45131–60

20,87561–90

22,90990–180

4,497180+

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 advisory 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 “IT advisory 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 IT advisory 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 IT advisory 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, 28,816 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 26, 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 advisory consulting firms by metro

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 advisory 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 IT advisory consulting firms are there based in Germany?

RevenueBase identified 3,336 IT advisory 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?

T-Systems International, headquartered in Frankfurt Am Main, tops this list with the largest team on record.

Which city has the most IT advisory consulting firms?

Berlin leads with 249 headquartered companies, followed by Hamburg (218) and Munchen (156).

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 28,816 verified decision-maker contacts tracked across these 3,336 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 26, 2026.

Ready to reach these companies? Verified emails and direct dials for all 3,336 IT advisory consulting firms based in Germany. Start with a free account, no credit card.

Download this list →

Related lists

IT advisory consulting firms by geography

Browse the directory

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.