Company lists · Data refreshed September 2026

Top 25 Tax practice management software companies based in Germany

RevenueBase identified 55 tax practice management software companies headquartered in Germany as of September 2026 and tracks 660 professional contacts across them, including 391 with verified work emails. Berlin is the largest hub.

This list covers tax practice management software 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 14, 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 14, 2026 86% judged on-target in blind review
55Companies
660Contacts tracked
391Verified emails
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The 25 largest tax practice management software companies based in Germany

Ranked by team size
Top 25 of 55 tax practice management software companies based in Germany, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to tax practice management software 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
1Partial evidenceLudwigsburg, GermanyHQ checked Sep 14, 2026501-1,000184 contacts →

Partial evidence

“Die Wolters Kluwer Tax & Accounting Deutschland GmbH mit Hauptsitz in Ludwigsburg ist Anbieterin der Produktlinien ADDISON, ADDISON Akte und ADDISON SBS.”

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceRosenheim, GermanyHQ checked Sep 14, 2026201-500152 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceOstfildern, GermanyHQ checked Sep 14, 202651-20046 contacts →

Indirect evidence

“Die Simba Computer Systeme GmbH bietet seit über 35 Jahren modulare Komplettlösungen für Finanz- und Unternehmenssoftware.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceEschborn, GermanyHQ checked Sep 14, 202611-5035 contacts →

Indirect evidence

“The fwsb GmbH is a company in the information technology and services sector, based in Eschborn, Hesse, Germany.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceBonn, GermanyHQ checked Sep 14, 202651-20034 contacts →

Indirect evidence

“STOTaX GmbH & Co.KG Im Sinne unserer Zielgruppe, zu denen Steuerberater, Buchhalter, Mandanten und Unternehmen gehören, verfolgen wir als familiengeführtes Unternehmen eine…”

Source: RevenueBase Database · checked Sep 14, 2026
6Strong evidenceAachen, GermanyHQ checked Sep 14, 202611-5029 contacts →

Strong evidence

“Taxy.io, Intelligent Automation in Tax & Legal Advice: Taxy.io was founded in 2018 as a spin-off of RWTH Aachen University and develops innovative software that enables tax…”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceBerlin, GermanyHQ checked Sep 14, 202611-5020 contacts →

Indirect evidence

“We are wundertax.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceNürnberg, GermanyHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“fintegra steht für digitale Lösungen rund um die steuerliche Verarbeitung komplexer Vermögenssachverhalte.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceKöln, GermanyHQ checked Sep 14, 202611-5012 contacts →

Partial evidence

“Infolog – Tax-Tech-Kompetenz seit über 20 Jahren Als Familienunternehmen stehen wir für Vertrauen, Partnerschaft und langfristige Zusammenarbeit.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceSolingen, GermanyHQ checked Sep 14, 202611-5011 contacts →

Indirect evidence

“Mit Fastdocs optimieren Steuerberatungskanzleien & Unternehmen ihre Arbeitsprozesse.”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceHamburg, GermanyHQ checked Sep 14, 202611-508 contacts →

Partial evidence

“Unsere Mission ist es, mit unseren Software-Produkten die digitale Zusammenarbeit zwischen Steuerberatern und deren Mandanten zu vereinfachen.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceViersen, GermanyHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

“Wir sind Berater, die Ihnen frühzeitig und aktiv aufzeigen, wie Sie Ihr Unternehmen entwickeln können und Ihnen nicht nur im Nachhinein erzählen, was hätte besser laufen können.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceKempten, GermanyHQ checked Sep 14, 20261-106 contacts →

Indirect evidence

“Progressive, Agile, Unique, Leaders”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceHamburg, GermanyHQ checked Sep 14, 202611-505 contacts →

Indirect evidence

“Willkommen bei BMD!”

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceMunchen, GermanyHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“Mein Arxonas ist ein speziell für Steuerberater entwickeltes cloudbasiertes Managementsystem.”

Source: RevenueBase Database · checked Sep 14, 2026
16Strong evidenceBerlin, GermanyHQ checked Sep 14, 202611-503 contacts →

Strong evidence

“Universal Units is the provider of IT-based solutions for the global management of corporate taxes.”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceNürnberg, GermanyHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

“Als Digitalisierungsexperte in der Steuerberatung legen wir besonderen Wert auf eine sehr persönliche Betreuung unserer Mandanten.”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceFrankenthal, GermanyHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

“Jedes Jahr stellt die Steuererklärung für viele eine große Hürde dar.”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceHanau, GermanyHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceEttenheim, GermanyHQ checked Sep 14, 202611-502 contacts →

Indirect evidence

“Willst Du Dein Unternehmenswachstum vorantreiben, ohne dabei massive steuerliche Belastungen zu fürchten?”

Source: RevenueBase Database · checked Sep 14, 2026
21Partial evidenceBerlin, GermanyHQ checked Sep 14, 202611-502 contacts →

Partial evidence

“Wir entwicklen Software für mittelständische Steuerberatungskanzleien sowie für Finanz- und Steuerabteilungen von Unternehmen und Institutionen.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceDresden, GermanyHQ checked Sep 14, 202611-502 contacts →

Indirect evidence

“Plan12 ist die innovative Steuerkanzlei für Unternehmen mit Weitblick.”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidenceKöln, GermanyHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“FlowTact entwickelt Softwarelösungen und digitale Applikationen, die speziell für Steuerkanzleien gebaut sind - von der Standard-Software bis zur maßgeschneiderten…”

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceBad Salzungen, GermanyHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Mit Unterstütung unseres Servicepartners der Datev eG bieten wir Ihnen die professionelle Einführung von Datev-Unternehmen Online an.”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceDahn, GermanyHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“TRAPP Steuerberatung is a company based out of 35 Äußermühlstraße, Dahn, Rhineland-Palatinate, Germany.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 55 tax practice management software companies based in Germany

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Tax practice management software companies based in Germany at a glance

As of Sep 14, 2026
59.2%Verified-email coverage
12.0Average contacts per company
11-50Median size (employees)
10.9%Largest-city concentration · Berlin
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
25
51-200
2
201-500
1
501-1,000
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 55 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 practice management software 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 practice management software 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 practice management software 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 practice management software 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, 391 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 14, 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

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 practice management software 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 practice management software companies are there based in Germany?

RevenueBase identified 55 tax practice management software 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?

Wolters Kluwer TAX & Accounting Deutschland, headquartered in Ludwigsburg, tops this list with the largest team on record.

Which city has the most tax practice management software companies?

Berlin leads with 6 headquartered companies, followed by Hamburg (3) and Koln (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 391 verified decision-maker contacts tracked across these 55 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 14, 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.