Company lists · Data refreshed September 2026

Top 19 Nonprofit accounting firms based in Germany

RevenueBase identified 48 nonprofit accounting firms headquartered in Germany as of September 2026 and tracks 163 professional contacts across them, including 59 with verified work emails and 1 with mobile numbers. Hamburg is the largest hub.

This list covers nonprofit accounting 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
48Companies
163Contacts tracked
59Verified emails
1Mobile numbers
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The 19 largest nonprofit accounting firms based in Germany

Ranked by team size
Top 19 of 48 nonprofit accounting firms based in Germany, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names nonprofit accounting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Keiper & Co. KGIndirect evidence
Mannheim, GermanyHQ checked Sep 5, 202651-20034

“Seit 1934 begleiten wir als vertrauensvoller Partner die steuerlichen und wirtschaftlichen Angelegenheiten unserer Mandanten.”

Source: company website · checked Sep 5, 2026
2
Adjuvaris Partnerschaft MBBIndirect evidence
Freiburg, GermanyHQ checked Sep 5, 202611-5012

“Die ADJUVARIS ist eines der führenden Unternehmen im Bereich der Prüfung und Beratung von Non-Profit-Unternehmen und Unternehmen der Sozialwirtschaft in Süddeutschland.”

Source: company website · checked Sep 5, 2026
3Mannheim, GermanyHQ checked Sep 5, 202611-5010

“Wir, Edenhofer und Partner, sind Wirtschaftsprüfer und Steuerberater in Mannheim.”

Source: company website · checked Sep 5, 2026
4Hamburg, GermanyHQ checked Sep 5, 20261-107

“HST Hanse StiftungsTreuhand GmbH is a nonprofit organization management company based in Germany.”

Source: company website · checked Sep 5, 2026
5
Bingmann & Partner MBBIndirect evidence
Giessen, GermanyHQ checked Sep 5, 202611-506

“Wir denken schnell, aber durchdacht und mit Hand und Fuß.”

Source: company website · checked Sep 5, 2026
6Ingolstadt, GermanyHQ checked Sep 5, 202651-2006

“Steuerberater | Wirtschaftsprüfer | Rechtsanwalt”

Source: company website · checked Sep 5, 2026
7Plauen, GermanyHQ checked Sep 5, 202611-506

“Allgemeine Wirtschaftsprüfungs- und Steuerberatungsgesellschaft mit einer zusätzlichen Spezialisierung für gemeinnützige Körperschaften und Organisationen des kommunalen Sektors…”

Source: company website · checked Sep 5, 2026
8Hamburg, GermanyHQ checked Sep 5, 202611-505

“Svenhase is an accounting company based out of 99 Bernhard-Nocht-Straße, Hamburg, Germany.”

Source: company website · checked Sep 5, 2026
9Hannover, GermanyHQ checked Sep 5, 202611-505

“Alle(s) für einen.”

Source: company website · checked Sep 5, 2026
10Braunschweig, GermanyHQ checked Sep 5, 202611-504

“Dronia & Ley Partnerschaft is an accounting company based out of 1 Dieselstr, Braunschweig, Germany.”

Source: company website · checked Sep 5, 2026
11Strausberg, GermanyHQ checked Sep 5, 20261-103
Source: company website · checked Sep 5, 2026
12Günzburg, GermanyHQ checked Sep 5, 20261-103
Source: company website · checked Sep 5, 2026
13
Steuerbüro Nitz GmbhIndirect evidence
Villingen-schwenningen, GermanyHQ checked Sep 5, 202611-501

“Steuerberatungsgesellschaft in Villingen-Schwenningen.”

Source: company website · checked Sep 5, 2026
14
Heilen UND RieskampIndirect evidence
Köln-altstadt-süd, GermanyHQ checked Sep 5, 20261-101
Source: company website · checked Sep 5, 2026
15Neubiberg, GermanyHQ checked Sep 5, 20261-101

“Buchhaltungsservice”

Source: company website · checked Sep 5, 2026
16
Steuerberatung WingenfeldIndirect evidence
Köln, GermanyHQ checked Sep 5, 20261-101

“Wir sind eine aufstrebende und unabh ngige Kanzlei, die Ihnen eine individuelle und pers nliche Beratung bietet.”

Source: company website · checked Sep 5, 2026
17Bielefeld, GermanyHQ checked Sep 5, 20261-101
Source: company website · checked Sep 5, 2026
18
Steuerkanzlei StraubIndirect evidence
Munich, GermanyHQ checked Sep 5, 20261-101

“Steuerberatung & Buchhaltung”

Source: company website · checked Sep 5, 2026
19Wiesbaden, GermanyHQ checked Sep 5, 20261-101

“Vorort-Service, Digitale papierlose Buchhaltung Buchhaltung, Gemeinnützigkeit”

Source: company website · checked Sep 5, 2026

Showing 19 of 48 nonprofit accounting firms based in Germany

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Nonprofit accounting firms based in Germany at a glance

As of Sep 5, 2026
1-10Median size (employees)
HamburgLargest hub · 4 HQs
1Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
30
11-50
15
51-200
3

Verified emails by last verification

0–30
53
31–60
5
61–90
0
90–180
0
180+
1

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 nonprofit accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Germany whose own description of what they do matches “nonprofit accounting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among nonprofit accounting 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 an evidence 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, 59 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 5, 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.

Frequently asked

How many nonprofit accounting firms are there based in Germany?

RevenueBase identified 48 nonprofit accounting 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?

Keiper & Co. KG, headquartered in Mannheim, tops this list with the largest team on record.

Which city has the most nonprofit accounting firms?

Hamburg leads with 4 headquartered companies, followed by Koln (4) and Berlin (3).

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 59 verified decision-maker contacts tracked across these 48 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 5, 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.