Company lists · Data refreshed September 2026
Top 25 Accounting firm business process outsourcing companies based in Germany
RevenueBase identified 615 accounting firm business process outsourcing companies headquartered in Germany as of September 2026 and tracks 4,594 professional contacts across them, including 2,097 with verified work emails and 28 with mobile numbers. Berlin is the largest hub.
This list covers accounting firm business process 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 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.
The 25 largest accounting firm business process outsourcing companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,442 contacts → | ||||
Indirect evidence “Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 170 contacts → | ||||
Indirect evidence “GKK PARTNERS ist eine expandierende Wirtschaftsprüfungs- und Steuerberatungsgesellschaft mit Sitz in München.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 137 contacts → | ||||
Indirect evidence “Die Philosophie unserer Sozietät lässt sich in drei Worten zusammenfassen: „Werte Menschen Strategien“ Denn um nichts anderes geht es bei unserer täglichen Arbeit: um Werte, die…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 90 contacts → | ||||
Indirect evidence “With more than 130 specialists at five locations in Germany and Luxembourg, Moore TK offers a wide range of individual consulting services in the areas of auditing, tax advisory…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 70 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 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 48 contacts → | ||||
Indirect evidence “Im Dienst unserer Mandanten | seit mehr als 90 Jahren GEGRÜNDET 1932 ALS DR.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 45 contacts → | ||||
Indirect evidence “Der Spezialdienstleister lohn-ag.de AG ist Marktführer für ausgelagerte Lohnbuchhaltung und Personalwirtschaft in den Branchen Gastronomie, Hotellerie, Gesundheitswesen und…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 42 contacts → | ||||
Indirect evidence “Die Crowe BPG wurde 1979 in Krefeld gegründet und erschließt sich inzwischen auf die Standorte Düsseldorf und Berlin.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 40 contacts → | ||||
Indirect evidence “What we do: IVC - Agile.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 37 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Indirect evidence “Custom-made consulting services that are close to the client and their challenges: This was the vision of three consultants who wanted to provide their clients with fast…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 34 contacts → | ||||
Indirect evidence “Seit 1934 begleiten wir als vertrauensvoller Partner die steuerlichen und wirtschaftlichen Angelegenheiten unserer Mandanten.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Partial evidence “The RTC | Group is an accounting group located in Bremen, Hamburg and Lower Saxony in Germany.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 29 contacts → | ||||
Indirect evidence “Göken, Pollak & Partner (GPP) ist eine überregional tätige Wirtschaftsprüfungs- und Steuerberatungsgesellschaft mit über 100 Mitarbeitenden.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 29 contacts → | ||||
Indirect evidence “Als innovative, digitale Kanzlei, verbindet KMpro München Exzellenz, Effizienz mit Teamwork in der Steuerberatung & Wirtschaftsprüfung.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 27 contacts → | ||||
Indirect evidence “As attorneys, tax advisers, management and IT consultants and auditors, we are present with 110 own offices in around 50 countries.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 24 contacts → | ||||
Indirect evidence “Sie wollen mehr?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Indirect evidence “Als eine der führenden, unabhängigen Wirtschaftsprüfungs- und Steuerberatungsgesellschaften im Ruhrgebiet beraten wir mittelständische Unternehmen, börsennotierte Gesellschaften…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 23 contacts → | ||||
Indirect evidence “Freese Feldhaus bietet mehr - wir vereinen Wirtschaftsprüfer, Steuerberater und Rechtsanwälte unter einem Dach.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 23 contacts → | ||||
Indirect evidence “Wir - die KONLUS GmbH Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft - sind als Wirtschaftsprüfer, Steuerberater und Unternehmensberater ein umfassender Dienstleister…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 22 contacts → | ||||
Indirect evidence “Als modernes und serviceorientiertes Unternehmen setzt Jakob & Sozien neben permanent aktualisierter Fachkompetenz auf gegenseitiges Vertrauen und eine interdisziplinäre Beratung.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 22 contacts → | ||||
Indirect evidence “Seit 1963 betreuen wir Konzerne, mittelständische Unternehmen und Privatpersonen mit unseren Kernkompetenzen Wirtschaftsprüfung, Steuerberatung und Recht.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 21 contacts → | ||||
Indirect evidence “Gute Beratung – das hat Tradition bei stallmeyer.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 contacts → | ||||
Indirect evidence “MUNKERT & PARTNER Steuerberater – Wirtschaftsprüfer – Rechtsanwälte Wir sind eine mittelständisch orientierte Steuerberatungs-/ Rechtsberatungs- und…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 19 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: accounting firm business process outsourcing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names accounting firm business process outsourcing companies.
- Partial evidence
- Its own public description names part of accounting firm business process outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name accounting firm business process outsourcing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 615 accounting firm business process outsourcing companies based in Germany
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Accounting firm business process outsourcing companies based in Germany at a glance
As of Sep 27, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 30.0dCompany record updated
Median 77.5dHow 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 firm business process 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 “accounting firm business process 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 accounting firm business process 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 accounting firm business process 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, 2,097 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 firm business process 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 accounting firm business process outsourcing companies are there based in Germany?
RevenueBase identified 615 accounting firm business process 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?
RSM Ebner Stolz, headquartered in Stuttgart, tops this list with the largest team on record.
Which city has the most accounting firm business process outsourcing companies?
Berlin leads with 52 headquartered companies, followed by Hamburg (37) and Munchen (21).
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 2,097 verified decision-maker contacts tracked across these 615 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.
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