Company lists · Data refreshed August 2026
Top 25 Accounting firms based in Koln, Germany
RevenueBase identified 71 accounting firms headquartered in Koln, Germany as of August 2026 and tracks 443 professional contacts across them, including 156 with verified work emails and 3 with mobile numbers. Berlin is the largest hub.
This list covers accounting firms headquartered in Koln, 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 August 29, 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 accounting firms based in Koln, Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 72 contacts → | ||||
Indirect evidence “Ypsilon ist ein junges, inhabergeführtes Beratungsunternehmen mit drei integrierten Geschäftsbereichen – Tax, Audit & Advisory – und mehr als 220 hochqualifizierte…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 59 contacts → | ||||
Indirect evidence “Laufenberg Michels und Partner setzt als Steuerberater und Wirtschaftsprüfer in Köln den Schwerpunkt auf eine aktive und strategische Beratung.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 23 contacts → | ||||
Indirect evidence “Wir - die KONLUS GmbH Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft - sind als Wirtschaftsprüfer, Steuerberater und Unternehmensberater ein umfassender Dienstleister…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 20 contacts → | ||||
Indirect evidence “RST ist eine größere Beratungsgruppe mit Wirtschaftsprüfern, Steuerberatern, Rechtsanwälten und Unternehmensberatern mit Hauptsitz in Essen.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 14 contacts → | ||||
Indirect evidence “Die axis RECHTSANWÄLTE sind Mitglied der multidisziplinären axis BERATUNGSGRUPPE, in der sich Rechtsanwälte, Steuerberater, Wirtschaftsprüfer, Unternehmensberater und Mathematiker…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 12 contacts → | ||||
Indirect evidence “Die SRS Audit GmbH ist eine mittelständische Wirtschaftsprüfungs- und Steuerberatungsgesellschaft.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Indirect evidence “DELTAX Wirtschafts- und Steuerberatungsgesellschaft mbH Steuerberatung is a legal services company based out of 759 Rösrather Str, Köln, Germany.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 9 contacts → | ||||
Indirect evidence “Steuerberatung gilt als eine trockene Materie – Verordnungen, Zahlen, Hard Facts.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 8 contacts → | ||||
Indirect evidence “Die German Professional Services Alliance (GPSA) ist eine Allianz von Professional Service Firms aus den Bereichen Rechtsberatung, Steuerberatung, Business Process Outsourcing…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Indirect evidence “Wirtschaftsprüfung Steuerberatung Rechtsberatung” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Indirect evidence “KOMUTAX Steuerberatungsgesellschaft mbH mit Standorten in Köln, Düsseldorf und Bremen” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Indirect evidence “We are a modern auditing and tax law firm in the heart of Cologne with interesting clients from a wide range of fields (e.g.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Indirect evidence “Wir sind eine Wirtschaftsprüfungskanzlei mit einem hochmotivierten Team, die gezielt auf die Digitalisierung setzt.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Indirect evidence “Willkommen bei Löhr - Ihrem Partner für Steuer, Rechts- und Unternehmensberatung Unsere Leidenschaft eröffnet unseren Mandanten Freiräume.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Indirect evidence “Unsere Stärke sind Zahlen.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Indirect evidence “Unser Unternehmen besteht seit 1982 und beschäftigt Wirtschaftsprüfer und Steuerberater mit langjähriger Erfahrung im Bereich der Wirtschaftsprüfung und Steuerberatung.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence “Wir machen Ihre (Geschäfts-)Welt ein Stück besser!” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “Nacken Hillebrand Partner GmbH is a company based out of Köln, Germany.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “Wir sind mehr als eine Steuerberatung.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Indirect evidence “Wir sind eine mittelgroße Steuerberatungs- und Wirtschaftsprüfungskanzlei und stehen seit mehr als 40 Jahren für Fortschritt, Erfolg und kompetente Beratung.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Wir sind eine mittelständische Steuerberatungskanzlei mit Sitz in Köln-Lindenthal.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “Als Wirtschaftsprüfer und Steuerberater mit Standorten in Köln und Bonn bieten wir unseren Mandanten zukunftsweisende Dienstleistungen auf allen Gebieten der Wirtschaftsprüfung…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “Als Steuerberater und Wirtschaftsprüfer aus Köln West verbinden wir Tradition mit Innovation.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Aug 29, 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: accounting 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 accounting firms.
- Partial evidence
- Its own public description names part of accounting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name accounting 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 71 accounting firms based in Koln, Germany
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Accounting firms based in Koln, Germany at a glance
As of Aug 29, 2026Companies by employee count
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 accounting 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 Koln, Germany whose own description of what they do matches “accounting 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 accounting 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 accounting firms, and records with no verified work email. Companies headquartered outside Koln 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, 156 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 August 29, 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.
Accounting firms by metro in Germany
- Accounting firms in Berlin135
- Accounting firms in Hamburg131
- Accounting firms in Munchen97
- Accounting firms in Koln71
- Accounting firms in Dusseldorf60
- Accounting firms in Stuttgart36
- Accounting firms in Dresden33
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 accounting 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 accounting firms are there based in Koln, Germany?
RevenueBase identified 71 accounting firms headquartered in Koln, Germany as of August 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?
Ypsilon Group, headquartered in Koln, tops this list with the largest team on record.
Which city has the most accounting firms?
Berlin leads with 135 headquartered companies, followed by Hamburg (131) and Munchen (97).
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 156 verified decision-maker contacts tracked across these 71 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 29, 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.