Company lists · Data refreshed September 2026

Top 25 Accounting software integration firms based in Germany

RevenueBase identified 80 accounting software integration firms headquartered in Germany as of September 2026 and tracks 736 professional contacts across them, including 344 with verified work emails. Berlin is the largest hub.

This list covers accounting software integration 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 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 27, 2026 86% judged on-target in blind review
80Companies
736Contacts tracked
344Verified emails
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The 25 largest accounting software integration firms based in Germany

Ranked by team size
Top 25 of 80 accounting software integration firms based in Germany, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to accounting software integration firms: 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 evidenceBielefeld, GermanyHQ checked Sep 27, 2026201-500216 contacts →

Partial evidence

“Diamant Software GmbH & Co.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceOstfildern, GermanyHQ checked Sep 27, 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 27, 2026
3Indirect evidenceBerlin, GermanyHQ checked Sep 27, 202651-20037 contacts →

Indirect evidence

“Bei MeyerPartner haben wir das Ziel, die Art und Weise, wie Beratung geleistet wird, zu revolutionieren.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceBad Harzburg, GermanyHQ checked Sep 27, 202651-20031 contacts →

Indirect evidence

“Phenix GmbH.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceMünchen, GermanyHQ checked Sep 27, 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 27, 2026
6Partial evidenceGarching, GermanyHQ checked Sep 27, 202611-5028 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceSchuttertal, GermanyHQ checked Sep 27, 202611-5024 contacts →

Partial evidence

“Accounting.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceHamburg, GermanyHQ checked Sep 27, 202611-5017 contacts →

Indirect evidence

“Automatisierte Buchhaltung für eCommerce & SaaS Unternehmen über unsere Platform.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceAndechs, GermanyHQ checked Sep 27, 202651-20017 contacts →

Partial evidence

“Wir, die hmd-software AG, sind ein Anbieter im Bereich modularer Software-Komplettlösungen für digitale Unternehmensabläufe und entwickeln einfach anwendbare Softwarelösungen für…”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceEttlingen, GermanyHQ checked Sep 27, 202611-5016 contacts →

Partial evidence

“We develop software solutions and push the boundaries of individual systems to their limits to make them work together efficiently in a business process.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceBerlin, GermanyHQ checked Sep 27, 202611-5014 contacts →

Indirect evidence

“The only accountant you will ever need.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceKöln, GermanyHQ checked Sep 27, 202611-5013 contacts →

Partial evidence

“Who We Are: Since 2011, ebiscon has been your partner for innovative system integration.”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceDüsseldorf, GermanyHQ checked Sep 27, 202611-5012 contacts →

Partial evidence

“Empower Your SaaS Growth with Maesn Maesn's solution accelerates the growth of SaaS companies by simplifying the complexities of integrating with your customers' ERP and…”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceVerden (aller), GermanyHQ checked Sep 27, 202651-20011 contacts →

Indirect evidence

“Die nlb bietet Buchführungsprogramme für Landwirtschaft und Gewerbe.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceKöln, GermanyHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

“milia.io ist die All-in-one Lösung für die Steuerkanzlei der Zukunft.”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceKiel, GermanyHQ checked Sep 27, 202611-509 contacts →

Indirect evidence

“DATEV-Steuerberater aufgepasst: buchhalter.pro ist die logische Konsequenz für deine Kanzlei!”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceNeckarsulm, GermanyHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“APS AG – Ihr inhabergeführter IT-Dienstleister im Großraum Heilbronn / Mannheim.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceStraelen, GermanyHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Im Bereich der Digitalisierung bieten wir Ihnen umfassende Lösungen für die Automatisierung Ihrer Finanzprozesse an.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceDüsseldorf, GermanyHQ checked Sep 27, 202611-506 contacts →

Indirect evidence

“Mehr als das Übliche: Bei Thiel & Thiel erhalten Sie nicht bloß eine Beratung.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceLandsberg, GermanyHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“Unsere Passion?”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceHamburg, GermanyHQ checked Sep 27, 202611-505 contacts →

Indirect evidence

“Willkommen bei BMD!”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceSingen, GermanyHQ checked Sep 27, 202611-504 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceBerlin, GermanyHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

“System-Silos sind Umsatzkiller.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceAichach, GermanyHQ checked Sep 27, 202611-504 contacts →

Indirect evidence

“Mehr Zeit sparen als Steuerberater, durch Optimierung & Digitalisierung der Kanzleiprozesse.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceErlenbach, GermanyHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 80 accounting software integration firms based in Germany

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Accounting software integration firms based in Germany at a glance

As of Sep 27, 2026
46.7%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
18.8%Largest-city concentration · Berlin
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
39
11-50
32
51-200
6
201-500
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 80 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 accounting software integration firms, 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 “accounting software integration firms”. 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 accounting software integration firms), 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 accounting software integration 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 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, 344 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 27, 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 accounting software integration firms, 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 accounting software integration firms are there based in Germany?

RevenueBase identified 80 accounting software integration 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?

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

Which city has the most accounting software integration firms?

Berlin leads with 15 headquartered companies, followed by Munich (4) and Dusseldorf (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 344 verified decision-maker contacts tracked across these 80 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 27, 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.