Company lists · Data refreshed September 2026

Top 25 Accounting and outsourcing companies based in Hungary

RevenueBase identified 171 accounting and outsourcing companies headquartered in Hungary as of September 2026 and tracks 1,168 professional contacts across them, including 361 with verified work emails and 25 with mobile numbers. Budapest is the largest hub.

This list covers accounting and outsourcing companies headquartered in Hungary, 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 22, 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 22, 2026 86% judged on-target in blind review
171Companies
1,168Contacts tracked
361Verified emails
25Mobile numbers
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The 25 largest accounting and outsourcing companies based in Hungary

Ranked by team size
Top 25 of 171 accounting and outsourcing companies based in Hungary, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting and outsourcing 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
1Strong evidenceBudapest, HungaryHQ checked Sep 22, 2026201-500328 contacts →

Strong evidence

“Process Solutions (PS) is a group providing Business Process Outsourcing services, operating an independent accounting business in the Central European region.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceBudapest, HungaryHQ checked Sep 22, 202651-200133 contacts →

Partial evidence

“RSM Hungary's core competences are accounting, tax advisory, payroll, audit and HR consulting combined with the most advanced digital solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202651-200128 contacts →

Indirect evidence

“Forvis Mazars in Hungary The Hungarian office in Budapest started its operation in 1991 and is now one of the largest audit and advisory firm in the country.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceBudapest, HungaryHQ checked Sep 22, 2026201-50075 contacts →

Indirect evidence

“SwiconGroup has been one of the leading members of the Hungarian IT services for more than a decade.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202651-20046 contacts →

Indirect evidence

“A LeitnerLeitner hazánkban is minden adónemre kiterjedő tanácsadást nyújt, és teljes körű számviteli és könyvvizsgálati portfólióval áll ügyfelei rendelkezésére.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidencePécs, HungaryHQ checked Sep 22, 202611-5031 contacts →

Indirect evidence

“Köszöntünk a kényelmes könyvelés világában!”

Source: RevenueBase Database · checked Sep 22, 2026
7Partial evidenceBudapest, HungaryHQ checked Sep 22, 202611-5022 contacts →

Partial evidence

“Founded in 2001, MGI-BPO has grown to become one of Hungary’s most esteemed providers of accounting, audit, tax, and payroll services.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202611-5020 contacts →

Indirect evidence

“We are member of PKF Global, a network of legally independent audit and advisory firms.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceBudapest, HungaryHQ checked Sep 22, 20261-1012 contacts →

Indirect evidence

“Focusaudit.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceSzékesfehérvár, HungaryHQ checked Sep 22, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202651-20010 contacts →

Indirect evidence

“Established in 1989, Hungarian-owned Memolux Ltd.”

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceBudapest, HungaryHQ checked Sep 22, 202611-509 contacts →

Partial evidence

“Our company with prepared professionals intends to be a new definite player on the market of accounting services.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202611-508 contacts →

Indirect evidence

“We would like to inform you that as of 1 January 2025, VGD Hungary Kft.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202611-507 contacts →

Indirect evidence

“Az Írisz Office-ról és összetett szolgáltatásainkról A számviteli és adótervezési szolgáltatásunkat választók jelentős részének – a könyvelés átvételét követő 12 hónap alatt –…”

Source: RevenueBase Database · checked Sep 22, 2026
15Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202651-2005 contacts →

Indirect evidence

“Az L.A.C.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202611-505 contacts →

Indirect evidence

“A vállalkozás komplex, mint a repülés.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceDebrecen, HungaryHQ checked Sep 22, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
18Partial evidenceBudapest, HungaryHQ checked Sep 22, 202611-504 contacts →

Partial evidence

“Ecovis Tax Solution is a company specialised in providing advisory and compliance services in tax and accounting related questions (including bookkeeping, payroll services as…”

Source: RevenueBase Database · checked Sep 22, 2026
19Partial evidenceBudapest, HungaryHQ checked Sep 22, 202611-504 contacts →

Partial evidence

“Financial and Accounting Services - General accounting - Chief accountancy - Management reports - Preparation of IFRS/US GAAP reports - Online access to our software - Tax…”

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceBudapest, HungaryHQ checked Sep 22, 202611-504 contacts →

Partial evidence

“Gen Accounting Ltd.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202611-503 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
22Partial evidenceBudapest, HungaryHQ checked Sep 22, 202611-503 contacts →

Partial evidence

“Next Accounting is a professional accounting and advisory firm providing end-to-end accounting, payroll and business support services.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202611-503 contacts →

Indirect evidence

“We are accountants, tax professionals and payroll specialists, who providing comprehensive and industry-focused perspectives to resolve our clients’ most complex local compliance…”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceBudapest, HungaryHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceBudapest, HungaryHQ checked Sep 22, 202611-502 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 171 accounting and outsourcing companies based in Hungary

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 361 reachable decision-makers.

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Accounting and outsourcing companies based in Hungary at a glance

As of Sep 22, 2026
30.9%Verified-email coverage
2.1%Mobile-number coverage
6.8Average contacts per company
1-10Median size (employees)
35.1%Largest-city concentration · Budapest
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
116
11-50
41
51-200
10
201-500
4

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 24.0d

Company record updated

Median 87.0d

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 and 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 Hungary whose own description of what they do matches “accounting and 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 and 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 and outsourcing companies, and records with no verified work email. Companies headquartered outside Hungary 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, 361 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 22, 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.

Accounting and outsourcing companies by metro

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 and 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 and outsourcing companies are there based in Hungary?

RevenueBase identified 171 accounting and outsourcing companies headquartered in Hungary 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?

Process Solutions, headquartered in Hungary, tops this list with the largest team on record.

Which city has the most accounting and outsourcing companies?

Budapest leads with 60 headquartered companies, followed by Miskolc (6) and Debrecen (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 361 verified decision-maker contacts tracked across these 171 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 22, 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.