Company lists · Data refreshed September 2026
Top 25 IT services and consulting firms based in Dortmund, Germany
RevenueBase identified 77 IT services and consulting firms headquartered in Dortmund, Germany as of September 2026 and tracks 7,332 professional contacts across them, including 4,376 with verified work emails. Berlin is the largest hub.
This list covers IT services and consulting firms headquartered in Dortmund, 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 27, 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.
The 25 largest IT services and consulting firms based in Dortmund, Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,332 contacts → | ||||
Indirect evidence “The future belongs to companies that effectively translate agentic AI into value creation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 143 contacts → | ||||
Partial evidence “SMF ist Ihr IT-Dienstleister für die digitale Transformation An fünf Standorten in Europa beraten wir unsere Kunden in Digitalisierungsfragen.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 114 contacts → | ||||
Partial evidence “UNIORG - Consulting with passion As an international full-service provider with a passion for SAP solutions, our customers have relied on UNIORG's expertise, quality and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 114 contacts → | ||||
Partial evidence “Um Ihnen den entscheidenden Wettbewerbsvorsprung zu ermöglichen, unterstützen wir Sie als IT-Dienstleister bei der datenbasierten Optimierung Ihrer Produkte und Geschäftsprozesse.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 52 contacts → | ||||
Indirect evidence “Komplexe Softwareprojekte erfolgreich umsetzen – von Beginn an!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 41 contacts → | ||||
Indirect evidence “Cassini AG – wir gestalten die digitale Zukunft.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 39 contacts → | ||||
Indirect evidence “GfTD steht für effiziente Beratungs- und Dienstleistungen im Telekommunikationsmarkt.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 15 contacts → | ||||
Indirect evidence “Tradition und Innovation in einer starken Partnerschaft Wir von Graef Computer sorgen für Ergebnisse, die Ihr Unternehmen wirklich weiterbringen.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Partial evidence “Unabhängiges, mittelständisches Unternehmen mit Schwerpunkt IT | Business-Analyse, Architektur-Beratung, Projektmanagement, Sicherheitsmanagement” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Indirect evidence “Willkommen bei sparqs!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 contacts → | ||||
Partial evidence “Ewald Consulting verfügt über mehr als 30 Jahre Erfahrung in der SAP-Beratung in den Modulen PM, PS, Service in verschiedenen Systemumgebungen einschließlich S/4 HANA und in…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 contacts → | ||||
Partial evidence “SUCCESSFUL IT PROJECTS HAVE A REASON!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “Standpunkt Digital entwickelt individuelle Software, Plattformen und KI-gestützte Automationen für Unternehmen mit komplexen digitalen Anforderungen.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Indirect evidence “Reducing operational costs by making employees more efficient (removing redundant work, ensuring a continuous information flow and team collaboration) increases work quality and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Partial evidence “Strategy | Solutions | Security | Services Wirtschaftsnahe IT-Beratung für den Mittelstand Strategy: Wir sehen stets den gesamten Kontext und gleichen das Handeln mit Ihrer…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Partial evidence “IT-Service, der wirklich funktioniert.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Indirect evidence “Beratende Entwickler Entwickelnder Berater Die Übergänge sind bei LEOCS fließend.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Strong evidence “SPL Consult is a top-management-consulting company focussed on restructuring and turnaround-management, mergers & acquisitions, digitalization, project management, finance and IT.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Indirect evidence “2MOTION - Das sind wir Kompetente Beratung und Planung, smarte Entwicklung, umfassendes Know-how und dazu qualifizierte Spezialisten, das sind die elementaren Bausteine unseres…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Indirect evidence “Wir sind ein junges, kreatives Team von Beratern und Software-Architekten und begleiten unsere Kunden auf dem Weg zum papierlosen Büro und optimierten Prozessen.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Indirect evidence “Seit beinahe 20 Jahren sorgt die DMA GmbH für Sichtbarkeit starker Unternehmen.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Indirect evidence “Suchst du Entwickler oder benötigst Verstärkung für dein Frontend- oder Backend-Team?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Partial evidence “Since 2013, Holism GmbH has specialized in strategic consulting for change and transformation challenges in the C-level area.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Strong evidence “D-PAS OFFERS MUCH MORE THAN CLASSICAL CONSULTING SERVICES We work with you to enable your market readiness and to consider the market dynamics before you tackle it.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
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 services and 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 services and consulting firms.
- Partial evidence
- Its own public description names part of IT services and 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 services and 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 77 IT services and consulting firms based in Dortmund, Germany
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IT services and consulting firms based in Dortmund, Germany at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole Germany list rather than for Dortmund, so it is reported there. Company counts and contact totals on this page are exact for Dortmund, over 77 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 services and 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 Dortmund, Germany whose own description of what they do matches “IT services and 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 services and 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 services and consulting firms, and records with no verified work email. Companies headquartered outside Dortmund 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, 4,376 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 27, 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 services and consulting firms by metro in Germany
- IT services and consulting firms in Berlin684
- IT services and consulting firms in Hamburg546
- IT services and consulting firms in Munchen402
- IT services and consulting firms in Dusseldorf269
- IT services and consulting firms in Munich248
- IT services and consulting firms in Koln219
- IT services and consulting firms in Stuttgart208
- IT services and consulting firms in Frankfurt Am Main150
- IT services and consulting firms in Frankfurt144
- IT services and consulting firms in Hannover90
- IT services and consulting firms in Bonn89
- IT services and consulting firms in Bremen88
- IT services and consulting firms in Cologne85
- IT services and consulting firms in Mannheim84
- IT services and consulting firms in Karlsruhe81
- IT services and consulting firms in Leipzig81
- IT services and consulting firms in Dresden80
- IT services and consulting firms in Wiesbaden80
- IT services and consulting firms in Dortmund77
- IT services and consulting firms in Munster74
- IT services and consulting firms in Essen73
- IT services and consulting firms in Nurnberg73
- IT services and consulting firms in Bielefeld68
- IT services and consulting firms in Braunschweig63
- IT services and consulting firms in Darmstadt58
- IT services and consulting firms in Augsburg55
- IT services and consulting firms in Eschborn54
- IT services and consulting firms in Mainz53
- IT services and consulting firms in Aachen47
- IT services and consulting firms in Saarbrucken47
- IT services and consulting firms in Heidelberg46
- IT services and consulting firms in Grunwald45
- IT services and consulting firms in Bochum37
- IT services and consulting firms in Wurzburg35
- IT services and consulting firms in Osnabruck34
- IT services and consulting firms in Regensburg32
- IT services and consulting firms in Wuppertal32
- IT services and consulting firms in Ulm31
- IT services and consulting firms in Krefeld30
- IT services and consulting firms in Monchengladbach30
- IT services and consulting firms in Kiel29
- IT services and consulting firms in Oldenburg29
- IT services and consulting firms in Ratingen29
- IT services and consulting firms in Boblingen28
- IT services and consulting firms in Duisburg28
- IT services and consulting firms in Kassel27
- IT services and consulting firms in Chemnitz26
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 services and 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 services and consulting firms are there based in Dortmund, Germany?
RevenueBase identified 77 IT services and consulting firms headquartered in Dortmund, 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?
Adesso SE, headquartered in Dortmund, tops this list with the largest team on record.
Which city has the most IT services and consulting firms?
Berlin leads with 684 headquartered companies, followed by Hamburg (546) and Munchen (402).
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 4,376 verified decision-maker contacts tracked across these 77 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 27, 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.
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