Company lists · Data verified August 2026

Top 21 Accounting firms for international nonprofits based in Koln, Germany

Name: Accounting firms for international nonprofits based in Koln, Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 41 companies tracked

There are 41 accounting firms for international nonprofits headquartered in Koln, Germany (RevenueBase, August 2026). RevenueBase tracks 290 professional contacts across them, including 117 with verified work emails and 1 with mobile numbers. Berlin is the largest hub.

This list covers accounting firms for international nonprofits headquartered in Koln, Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

41Companies

290Contacts tracked

117Verified emails

1Mobile numbers

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The 21 largest accounting firms for international nonprofits based in Koln, Germany

Ranked by team size

Top 21 of 41 accounting firms for international nonprofits based in Koln, Germany, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Ypsilon Group	Koln	201-500	72	43
2	Laufenberg Michels UND Partner MBB	Koln	51-200	59	29
3	Konlus Wirtschaftsprüfer Steuerberater	Koln	51-200	23	3
4	Deltax Wirtschafts- UND Steuerberatungsgesellschaft MBH	Koln	1-10	12	6
5	Triplex Lenzen Kaup UND Többens GBR	Koln	11-50	7	6
6	OFM Oebel Fröhlich Michels Gmbh	Koln	11-50	5	4
7	Taavas Gmbh WPG	Koln	1-10	5	4
8	Löhr Partnerschaftsgesellschaft MBB	Koln	11-50	4	3
9	Zacharias & Demmer	Koln	11-50	4	3
10	Akkurata Treuhand Gmbh	Koln	11-50	4	2
11	AHW Hunold & Partner MBB Steuerberater Wirtschaftsprüfer Rechtsanwälte	Koln	51-200	3	1
12	Nacken Hillebrand Partner Gmbh	Koln	1-10	3	1
13	VON DER Lohe Maronna Partnerschaft MBB Steuerberater	Koln	11-50	2	2
14	Eisenach Partner	Koln	11-50	2	2
15	SST Treuhand- UND Steuerberatungsgesellschaft MBH	Koln	1-10	2	2
16	HSP Steuer Köln West	Koln	1-10	2	1
17	Kanzlei Rammoser	Koln	1-10	1	1
18	Addresults Gmbh	Koln	1-10	1	1
19	Henze & Partner	Koln	1-10	1	1
20	Mehmet Lafci	Koln	1-10	1	1
21	Steuerberatung Wingenfeld	Koln	n/a	1	1

Showing 21 of 41 accounting firms for international nonprofits based in Koln, Germany

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Accounting firms for international nonprofits based in Koln, Germany at a glance

As of Aug 28, 2026

11-50Median size (employees)

BerlinLargest hub · 72 HQs

1Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Accounting firms for international nonprofits by metro in Germany

Metro	Companies
Accounting firms for international nonprofits in Berlin	72
Accounting firms for international nonprofits in Hamburg	67
Accounting firms for international nonprofits in Munchen	65
Accounting firms for international nonprofits in Koln	41
Accounting firms for international nonprofits in Dusseldorf	38
Accounting firms for international nonprofits in Stuttgart	22
Accounting firms for international nonprofits in Dresden	22

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “accounting firms for international nonprofits”, with match quality audited by blind human judging, and headquartered in Koln, Germany.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many accounting firms for international nonprofits are there based in Koln, Germany?

There are 41 accounting firms for international nonprofits headquartered in Koln, Germany as of August 2026 (RevenueBase).

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 for international nonprofits?

Berlin leads with 72 headquartered companies, followed by Hamburg (67) and Munchen (65).

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 117 verified decision-maker contacts tracked across these 41 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.