Company lists · Data refreshed September 2026

Top 25 Tax outsourcing companies based in Germany

RevenueBase identified 2,708 tax outsourcing companies headquartered in Germany as of September 2026 and tracks 8,390 professional contacts across them, including 2,838 with verified work emails. Berlin is the largest hub.

This list covers tax outsourcing companies 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 21, 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 21, 2026 86% judged on-target in blind review
2,708Companies
8,390Contacts tracked
2,838Verified emails
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The 25 largest tax outsourcing companies based in Germany

Ranked by team size
Top 25 of 2,708 tax outsourcing companies based in Germany, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to tax outsourcing companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBerlin, GermanyHQ checked Sep 21, 20261,001-5,000319 contacts →

Indirect evidence

“Wir bei Ecovis sind Steuerberater, Wirtschaftsprüfer, Rechtsanwälte und Unternehmensberater.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceHamburg, GermanyHQ checked Sep 21, 2026501-1,000198 contacts →

Indirect evidence

“Die ADS Steuer.Beratung ist Ihr spezialisierter Partner für ganzheitliche Steuerberatung – exklusiv für Unternehmen.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceMunich, GermanyHQ checked Sep 21, 2026201-500170 contacts →

Indirect evidence

“GKK PARTNERS ist eine expandierende Wirtschaftsprüfungs- und Steuerberatungsgesellschaft mit Sitz in München.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceRosenheim, GermanyHQ checked Sep 21, 2026201-500152 contacts →

Indirect evidence

“Agenda ist einer der führenden Software-Anbieter für die steuer- und wirtschaftsberatenden Berufe.”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceMünchen, GermanyHQ checked Sep 21, 2026201-500110 contacts →

Partial evidence

“Kleeberg is a national and internationally active auditing and tax consulting firm based in Munich.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceDarmstadt, GermanyHQ checked Sep 21, 20261,001-5,00091 contacts →

Indirect evidence

“Der Steuerring e.V.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceStuttgart, GermanyHQ checked Sep 21, 2026201-50070 contacts →

Indirect evidence

“BW PARTNER – geleitet von Zahlen und inspiriert von Visionen, gestalten wir die Zukunft unserer Mandanten und fördern die Karrieren unserer Mitarbeiter.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceKöln, GermanyHQ checked Sep 21, 202651-20068 contacts →

Indirect evidence

“Unsere Steuerberater in Köln, Düsseldorf, Frankfurt, Bonn und Dubai haben sich besonders auf die Steuerberatung von Kapitalgesellschaften und Personengesellschaften spezialisiert.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceHamburg, GermanyHQ checked Sep 21, 202651-20055 contacts →

Indirect evidence

“Hamburg Harburg Steuerberatung, Wirtschaftsprüfung und Rechtsberatung DIERKES PARTNER steht als Kanzlei für einen ganzheitlichen Beratungsansatz für mittelständische Unternehmen…”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidencePrüm, GermanyHQ checked Sep 21, 2026201-50053 contacts →

Indirect evidence

“Lehnen & Partner sind die Steuerberater für heute und morgen mit neun Standorten in den Regionen Eifel, Mosel und Hunsrück.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceGermanyHQ checked Sep 21, 202651-20051 contacts →

Partial evidence

“RLT Ruhrmann Tieben & Partner mbB, Germany, offers a wide range of professional services in the area of tax consulting, accounting and auditing.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceWuppertal, GermanyHQ checked Sep 21, 202651-20048 contacts →

Indirect evidence

“Als Wirtschafts- und Steuerberatungsgesellschaft ist die RINKE TREUHAND GmbH eine der führenden Kanzleien im Bergischen Land.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceLudwigshafen, GermanyHQ checked Sep 21, 202611-5042 contacts →

Indirect evidence

“Individuelle Steuerplanung und -beratung direkt vom Steuerberater: Unsere Steuerberater kümmern sich persönlich um Ihre Anliegen und erstellen Ihre Buchführung, Ihren…”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceHamburg, GermanyHQ checked Sep 21, 202651-20040 contacts →

Indirect evidence

“Bei steueragenten.de vereinen wir geballte Steuerexpertise und beraten standortunabhängig über 3.500 moderne Unternehmen aus den verschiedensten Bereichen wie E-Commerce…”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceMannheim, GermanyHQ checked Sep 21, 202651-20034 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceHamburg, GermanyHQ checked Sep 21, 202651-20030 contacts →

Indirect evidence

“Unsere mittelständische Wirtschaftsprüfungs- und Steuerberatungsgesellschaft besteht bereits seit 1980 und hat ihren Sitz im hohen Norden, in der schönen Freien und Hansestadt…”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceMünchen, GermanyHQ checked Sep 21, 202651-20029 contacts →

Indirect evidence

“Als innovative, digitale Kanzlei, verbindet KMpro München Exzellenz, Effizienz mit Teamwork in der Steuerberatung & Wirtschaftsprüfung.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceBad Homburg Vor Der Höhe, GermanyHQ checked Sep 21, 2026201-50027 contacts →

Indirect evidence

“Wir bei der DBB DATA sind die Experten mit dem Rundum-Blick für alle steuerrelevanten Themen.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceFriedrichsdorf, GermanyHQ checked Sep 21, 2026201-50027 contacts →

Indirect evidence

“LBH – LÖSUNGEN BEGINNEN HIER Unsere Gesellschaft wurde 1970 in Frankfurt gegründet.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceAugsburg, GermanyHQ checked Sep 21, 202651-20026 contacts →

Indirect evidence

“Steuerberatung und Wirtschaftsprüfung für den Mittelstand.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceWürzburg, GermanyHQ checked Sep 21, 202651-20024 contacts →

Partial evidence

“With over 100 employees, our firm is one of the leading tax advisory and auditing companies for medium-sized companies and private individuals in the Würzburg, Tauberbischofsheim…”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceBerlin, GermanyHQ checked Sep 21, 202651-20023 contacts →

Partial evidence

“ATC Tax GmbH & Co.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceMünster, GermanyHQ checked Sep 21, 2026501-1,00023 contacts →

Indirect evidence

“Mit mehr als 70 erfahrenen Steuerberatern sowie Rechtsanwälten in unserem Team stehen wir Ihnen als kompetente Steuerberater in Münster, im Münsterland und Westfalen-Lippe in 25…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceDüsseldorf, GermanyHQ checked Sep 21, 202651-20022 contacts →

Indirect evidence

“Als mittelständische Wirtschaftsprüfungs- und Steuerberatungsgesellschaft beraten wir mit einem über 60-köpfigen Team international tätige Konzerne sowie deren Tochterunternehmen…”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceHerford, GermanyHQ checked Sep 21, 202651-20021 contacts →

Indirect evidence

“HPS zählt zu den TOP-Steuerberatungskanzleien Deutschlands Warum HPS?”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 2,708 tax outsourcing companies based in Germany

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Tax outsourcing companies based in Germany at a glance

As of Sep 21, 2026
33.8%Verified-email coverage
3.1Average contacts per company
1-10Median size (employees)
6.1%Largest-city concentration · Berlin
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
1,341
11-50
1,049
51-200
125
201-500
12
501-1,000
6
1,001-5,000
4
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 2,708 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 tax outsourcing companies, 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 “tax outsourcing companies”. 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 tax outsourcing companies), 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 tax outsourcing companies, 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, 2,838 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 21, 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.

Tax outsourcing companies 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 tax outsourcing companies, 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 tax outsourcing companies are there based in Germany?

RevenueBase identified 2,708 tax outsourcing companies 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?

Ecovis Deutschland, headquartered in Berlin, tops this list with the largest team on record.

Which city has the most tax outsourcing companies?

Berlin leads with 164 headquartered companies, followed by Hamburg (101) and Munchen (78).

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 2,838 verified decision-maker contacts tracked across these 2,708 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 21, 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.