Company lists · Data refreshed September 2026

Top 25 Professional services accounting software companies based in Germany

RevenueBase identified 70 professional services accounting software companies headquartered in Germany as of September 2026 and tracks 566 professional contacts across them, including 313 with verified work emails and 7 with mobile numbers. Hamburg is the largest hub.

This list covers professional services accounting 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, 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
70Companies
566Contacts tracked
313Verified emails
7Mobile numbers
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The 25 largest professional services accounting software companies based in Germany

Ranked by team size
Top 25 of 70 professional services accounting software companies based in Germany, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names professional services accounting software companies: 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
Diamant Software GmbhPartial evidence
Bielefeld, GermanyHQ checked Sep 5, 2026201-500216

“Diamant Software GmbH & Co.”

Source: company website · checked Sep 5, 2026
2
Everii GroupStrong evidence
Hamburg, GermanyHQ checked Sep 5, 202651-20048

“Modern software tools for everii business The everii Group is a new international brand for well-known software tools in the field of professional services.”

Source: company website · checked Sep 5, 2026
3
NoviconPartial evidence
Garching, GermanyHQ checked Sep 5, 202611-5028

“NOVICON offers the worlds leading business software and financial solutions.”

Source: company website · checked Sep 5, 2026
4Baunatal, GermanyHQ checked Sep 5, 202651-20022

“Als modernes und serviceorientiertes Unternehmen setzt Jakob & Sozien neben permanent aktualisierter Fachkompetenz auf gegenseitiges Vertrauen und eine interdisziplinäre Beratung.”

Source: company website · checked Sep 5, 2026
5
FriebeIndirect evidence
Lüdenscheid, GermanyHQ checked Sep 5, 202651-20018

“Seit der Gründung im Jahr 1973 durch Herrn Dr.”

Source: company website · checked Sep 5, 2026
6
HMK Klein UND PartnerIndirect evidence
Köln, GermanyHQ checked Sep 5, 202651-20017

“Mit gut 60 Mitarbeitern und einer Berufsträger-Quote von rund 33 Prozent bietet Klein + Partner die optimale Größe, sowohl Full-Service in den Bereichen Wirtschaftsprüfung und…”

Source: company website · checked Sep 5, 2026
7
Mika AIIndirect evidence
Berlin, GermanyHQ checked Sep 5, 202611-5014

“The only accountant you will ever need.”

Source: company website · checked Sep 5, 2026
8
FastbillPartial evidence
Frankfurt Am Main, GermanyHQ checked Sep 5, 202611-5012

“FastBill provides simplified, smart and beautiful accounting solution for small and medium businesses.”

Source: company website · checked Sep 5, 2026
9
HellohqPartial evidence
Hamburg, GermanyHQ checked Sep 5, 202611-5012

“helloHQ ist die All-in-One Business-Software, die jedem in eurem Unternehmen die Arbeit leichter macht.”

Source: company website · checked Sep 5, 2026
10
Neue Landbuch Gmbh & Co. KGIndirect evidence
Verden (aller), GermanyHQ checked Sep 5, 202651-20011

“Die nlb bietet Buchführungsprogramme für Landwirtschaft und Gewerbe.”

Source: company website · checked Sep 5, 2026
11Munich, GermanyHQ checked Sep 5, 202611-508

“Bei SH+C in München leben wir Wirtschaftsprüfung und Steuerberatung mit einem modernen Ansatz – fachlich stark, digital und persönlich.”

Source: company website · checked Sep 5, 2026
12
Gothentreuhand GmbhIndirect evidence
Bochum, GermanyHQ checked Sep 5, 202611-507

“Wir sind Wirtschaftsprüfer, Steuerberater und Berater für den Mittelstand an Ruhr und Rhein.”

Source: company website · checked Sep 5, 2026
13Meschede, GermanyHQ checked Sep 5, 20261-106

“Bereits seit 1965 sind wir Ihr kompetenter sowie leistungsstarker Ansprechpartner.”

Source: company website · checked Sep 5, 2026
14
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
15Würzburg, GermanyHQ checked Sep 5, 202611-505

“Steuerberatung, Wirtschaftprüfung, Betriebswirtschaftliche Beratung, Gründungsberatung, Nachfolgeberatung, Rechtsformgestaltung, Finanzbuchhaltung, Lohnbuchhaltung”

Source: company website · checked Sep 5, 2026
16
Taavas Gmbh WPGIndirect evidence
Köln, GermanyHQ checked Sep 5, 20261-105

“Wir sind eine Wirtschaftsprüfungskanzlei mit einem hochmotivierten Team, die gezielt auf die Digitalisierung setzt.”

Source: company website · checked Sep 5, 2026
17Hamburg, GermanyHQ checked Sep 5, 202611-505

“Wir von Dr.”

Source: company website · checked Sep 5, 2026
18Gütersloh, GermanyHQ checked Sep 5, 202611-505

“Suchen Sie jemanden, der Sie bei anstehenden wirtschaftlichen Herausforderungen begleitet?”

Source: company website · checked Sep 5, 2026
19Singen, GermanyHQ checked Sep 5, 202611-504

“Was wir für Sie tun: Unsere umfangreichen Dienstleistungen reichen von einer umfassenden Finanzbuchführung und Lohnabrechnung inklusive Belegaustausch bis hin zu Beratungen in…”

Source: company website · checked Sep 5, 2026
20Erlenbach, GermanyHQ checked Sep 5, 20261-104

“Wir bieten Finanzbuchführung, Gehaltsabrechnungen und Steuerberatung für Unternehmen und Unternehmer.”

Source: company website · checked Sep 5, 2026
21
Gedicon GmbhStrong evidence
Köln, GermanyHQ checked Sep 5, 20261-104

“Die von der Gedicon GmbH entwickelte Software LAS bietet Lösungen für Professional Service Firms, wie Rechtsanwalts­kanzleien sowie Wirtschaftsprüfungsgesellschaften und…”

Source: company website · checked Sep 5, 2026
22Reinbek, GermanyHQ checked Sep 5, 20261-104

“Die spiritdev Softwareentwicklung GmbH mit Sitz in Reinbek bei Hamburg entwickelt Softwarelösungen und Dienstleistungen für den Mittelstand.”

Source: company website · checked Sep 5, 2026
23
Odacer Finanzsoftware GmbhIndirect evidence
Wiesbaden, GermanyHQ checked Sep 5, 20261-103
Source: company website · checked Sep 5, 2026
24Düsseldorf, GermanyHQ checked Sep 5, 202611-503
Source: company website · checked Sep 5, 2026
25
Grethen PartnerIndirect evidence
Bergen, GermanyHQ checked Sep 5, 202611-503

“Seit 1980 an Ihrer Seite – bereits in zweiter Generation für Sie vor Ort: Mit mehr als 50 Mitarbeitenden in Bergen und Celle bietet Ihnen Grethen + Partner ganzheitliche Beratung…”

Source: company website · checked Sep 5, 2026

Showing 25 of 70 professional services accounting software companies based in Germany

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Professional services accounting software companies based in Germany at a glance

As of Sep 5, 2026
1-10Median size (employees)
HamburgLargest hub · 6 HQs
7Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
35
11-50
25
51-200
6
201-500
1

Verified emails by last verification

0–30
298
31–60
15
61–90
0
90–180
0
180+
0

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 professional services accounting software companies, 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 “professional services accounting software companies”. 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 professional services accounting 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 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, 313 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 professional services accounting software companies are there based in Germany?

RevenueBase identified 70 professional services accounting 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?

Diamant Software Gmbh, headquartered in Bielefeld, tops this list with the largest team on record.

Which city has the most professional services accounting software companies?

Hamburg leads with 6 headquartered companies, followed by Berlin (5) and Koln (4).

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 313 verified decision-maker contacts tracked across these 70 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.