Company lists · Data refreshed September 2026

Top 25 Back office accounting services based in Poland

RevenueBase identified 640 back office accounting services headquartered in Poland as of September 2026 and tracks 2,181 professional contacts across them, including 446 with verified work emails. Warszawa is the largest hub.

This list covers back office accounting services headquartered in Poland, 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 19, 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 19, 2026 86% judged on-target in blind review
640Companies
2,181Contacts tracked
446Verified emails
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The 25 largest back office accounting services based in Poland

Ranked by team size
Top 25 of 640 back office accounting services based in Poland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to back office accounting services: 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
1Strong evidenceWrocław, PolandHQ checked Sep 19, 2026201-500190 contacts →

Strong evidence

“Impel Business Solutions to doświadczony i wykwalifikowany dostawca wspierający biznes w zakresie usług back-office.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceKraków Old Town, PolandHQ checked Sep 19, 20261,001-5,000186 contacts →

Indirect evidence

“ℹ Sterling – The Missing Piece to Your Business Success Looking for seamless customer service, smarter credit management, or efficient debt recovery?”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceŁódź, PolandHQ checked Sep 19, 2026201-500153 contacts →

Indirect evidence

“Business Support Solution (BSS) to spółka należąca do Grupy Pelion, specjalizująca się we wsparciu organizacji w obszarach finansów, kadr i płac oraz obsługi procesów biznesowych.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceWarszawa, PolandHQ checked Sep 19, 202651-20069 contacts →

Indirect evidence

“Mac Auditor od 1994 roku świadczy na rzecz klientów biznesowych usługi z obszaru audytu, outsourcingu usług księgowych i kadrowo-płacowych oraz doradztwa.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceWrocław, PolandHQ checked Sep 19, 202651-20037 contacts →

Indirect evidence

“Pomagamy firmom podejmować decyzje na podstawie danych, a nie intuicji.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceWarszawa, PolandHQ checked Sep 19, 202611-5031 contacts →

Indirect evidence

“Tworzymy zewnętrzny, pełnowymiarowy dział finansowy dostosowany do potrzeb Twojej firmy.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidencePoznań, PolandHQ checked Sep 19, 202611-5020 contacts →

Indirect evidence

“Kompleksowe wsparcie firm w dynamicznym otoczeniu biznesowym.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceWarsaw, PolandHQ checked Sep 19, 202611-5019 contacts →

Partial evidence

“ARPI Accounting (ARPI & Partners Sp.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceWarszawa, PolandHQ checked Sep 19, 202611-5013 contacts →

Indirect evidence

“Dostarczamy kompleksową obsługę w zakresie księgowości oraz kadr i płac.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidencePolandHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceWrocław, PolandHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

“Biuro Rachunkowe DPSynergia pracuje dla Państwa we Wrocławiu.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceWarszawa, PolandHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceMikołów, PolandHQ checked Sep 19, 202651-2009 contacts →

Indirect evidence

“Rosnący rynek i dynamiczny rozwój przedsiębiorstw sprawiają, że korzystanie z usług specjalistów staje się koniecznością dla wielu podmiotów gospodarczych.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceKraków, PolandHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Auditors Górka & Szulc to kancelaria księgowa świadcząca usługi zarówno na rzecz niewielkich spółek lokalnych, jak i dużych międzynarodowych korporacji w zakresie księgowości…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceKraków, PolandHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Zapraszamy za kulisy Solidnej Księgowej!”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceToruń, PolandHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“Jesteśmy zespołem specjalistów z zakresu bieżącej obsługi księgowej oraz kadrowej.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceWarszawa, PolandHQ checked Sep 19, 20261-106 contacts →

Indirect evidence

“Biuro rachunkowe Clever Tax powstało z myślą o tym, aby dać wszystkim naszym klientom pewność, że powierzyli swoje sprawy zaufanym i rzetelnym osobom.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceBiałystok, PolandHQ checked Sep 19, 20261-106 contacts →

Partial evidence

“We are a modern accounting firm that brings traditional accounting into the online world, offering comprehensive services for sole proprietorships (JDG), limited liability…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceKraków, PolandHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“Payroll 360 jest projektem zespołu specjalistów i ekspertów z zakresu kadr i płac, HR i księgowości pracujących ze sobą od niemal 15 lat.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceWarszawa, PolandHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

“EDF TAX to nowoczesne biuro rachunkowe oferujące kompleksową obsługę przedsiębiorstw, stowarzyszeń i fundacji.”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidenceWarsaw, PolandHQ checked Sep 19, 202611-505 contacts →

Partial evidence

“CGO Finance specializes in outsourcing accounting services as well as HR and payroll services for both international and local enterprises.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidencePoznań, PolandHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

“HomeOfferCarrerTrusted usLinksContact PL | EN Revenue and expense ledger Bookkeeping in accordance with tax regulations, on the basis of documents provided by the Principal…”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceJelenia Góra, PolandHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

“Sophisticated and developed firms and corporations employ their finance staff to provide work in a variety of specialties.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceWarsaw, PolandHQ checked Sep 19, 20261-105 contacts →

Partial evidence

“Your future, our accounting Counthink to firma zajmująca się usługami z zakresu księgowości.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceWrocław, PolandHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“W naszej karierze zawodowej widzieliśmy wiele niezwykle źle prowadzonych ksiąg rachunkowych.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 640 back office accounting services based in Poland

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Back office accounting services based in Poland at a glance

As of Sep 19, 2026
20.4%Verified-email coverage
3.4Average contacts per company
1-10Median size (employees)
14.2%Largest-city concentration · Warszawa
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
467
11-50
140
51-200
12
201-500
4
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Poland, so it is reported there. Company counts and contact totals on this page are exact for Poland, over 640 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 back office accounting services, 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 Poland whose own description of what they do matches “back office accounting services”. 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 back office accounting services), 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 back office accounting services, and records with no verified work email. Companies headquartered outside Poland 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, 446 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 19, 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.

Back office accounting services by metro

  • Back office accounting services in Warszawa91
  • Back office accounting services in Krakow36
  • Back office accounting services in Wroclaw34
  • Back office accounting services in Poznan30
  • Back office accounting services in Lodz29

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 back office accounting services, 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 back office accounting services are there based in Poland?

RevenueBase identified 640 back office accounting services headquartered in Poland 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?

Impel Business Solutions, headquartered in Wroclaw, tops this list with the largest team on record.

Which city has the most back office accounting services?

Warszawa leads with 91 headquartered companies, followed by Krakow (36) and Wroclaw (34).

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 446 verified decision-maker contacts tracked across these 640 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 19, 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.