Company lists · Data refreshed September 2026

Top 25 Large accounting firms based in Finland

RevenueBase identified 118 large accounting firms headquartered in Finland as of September 2026 and tracks 2,928 professional contacts across them, including 1,127 with verified work emails. Helsinki is the largest hub.

This list covers large accounting firms headquartered in Finland, 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 21, 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 21, 2026 86% judged on-target in blind review
118Companies
2,928Contacts tracked
1,127Verified emails
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The 25 largest large accounting firms based in Finland

Ranked by team size
Top 25 of 118 large accounting firms based in Finland, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to large accounting 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
1Indirect evidencePl 1037, FinlandHQ checked Sep 21, 20261,001-5,0001,141 contacts →

Indirect evidence

“KPMG is a global network of professional firms providing Audit, Tax, Legal and Advisory services.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceHelsinki, FinlandHQ checked Sep 21, 2026501-1,000122 contacts →

Indirect evidence

“Hillo kiinnostaa meitä kaikkia ja etenkin reipasta tuloksentekijää.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceHelsinki, FinlandHQ checked Sep 21, 202611-5036 contacts →

Partial evidence

“We are an authorized accounting firm with over 20 years of experience in financial administration, and in corporate and foundation management.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceHelsinki, FinlandHQ checked Sep 21, 202651-20031 contacts →

Indirect evidence

“Nexia täyttää tänä vuonna 20 vuotta – kaksi kokonaista vuosikymmentä satojen yritysten rinnalla tarjoten heille asiantuntijuutemme.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceTampere, FinlandHQ checked Sep 21, 202611-5031 contacts →

Indirect evidence

“Tilintarkastus- ja veropalvelut sekä muut asiantuntijapalvelut laadukkaasti ja asiakasta kuunnellen.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceHelsinki, FinlandHQ checked Sep 21, 202611-5027 contacts →

Indirect evidence

“Pienten ja keskisuurten yritysten palveleva tilitoimisto.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceOulu, FinlandHQ checked Sep 21, 202611-5025 contacts →

Partial evidence

Accounting company Mandaatti offers wide range of financial services mainly for small and medium sized companies.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceOulu, FinlandHQ checked Sep 21, 202611-5025 contacts →

Indirect evidence

“TALVEA tarjoaa talous, laki, vero- ja tilintarkastuspalveluita yrityksille, omistajille sekä julkishallinnon organisaatioille.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceHelsinki, FinlandHQ checked Sep 21, 202611-5023 contacts →

Indirect evidence

“Aallon Tilitoimisto on asiantunteva ja palveleva helsinkiläinen tilitoimisto, jonka palveluksessa työskentelee 50 alan ammattilaista.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceHelsinki, FinlandHQ checked Sep 21, 202611-5021 contacts →

Indirect evidence

“Tiliextra Oy on vuonna 1977 perustettu kauppakamarin hyväksymä tilintarkastusyhteisö (HTM-yhteisö).”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceJoensuu, FinlandHQ checked Sep 21, 202611-5018 contacts →

Indirect evidence

“Olemme pohjoiskarjalainen tilintarkastusyhteisö ja olemme alueellisesti suurin itsenäinen toimija.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceHelsinki, FinlandHQ checked Sep 21, 202651-20016 contacts →

Indirect evidence

“Olemme yrittäjähenkisesti ja nykyaikaisesti ajatteleva täyden palvelun tilitoimisto.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceTampere, FinlandHQ checked Sep 21, 202611-5012 contacts →

Indirect evidence

“Accotilit Oy on tamperelainen täyden palvelun tilitoimisto, jossa kirjanpidon ja palkanlaskennan ohella on vahva osaaminen ohjelmistoista, PK-yritysten ja yrittäjien tulos- ja…”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceOulu, FinlandHQ checked Sep 21, 202611-5011 contacts →

Indirect evidence

“Pohjois-Suomen Tilintarkastus Oy on tilintarkastusyhteisö, johon kuuluu 13 kokenutta, ammattitaitoista HT- ja KHT-tilintarkastajaa.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceVantaa, FinlandHQ checked Sep 21, 202651-20011 contacts →

Indirect evidence

“HLB Tietotili on viranomaisen rekisteröimä Tilintarkastusyhteisö.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceHelsinki, FinlandHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

“Forvis Mazars Group SC is an independent member of Forvis Mazars Global, a leading global professional services network.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceVaasa, FinlandHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

“Behöver ditt företag en partner för bokföringen och ekonomiförvaltningen som har förmågan att se företagets affärsverksamhet som en helhet?”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceHelsinki, FinlandHQ checked Sep 21, 20261-1010 contacts →

Indirect evidence

“DFK Finland Oy Ab has over 25 years of experience in auditing, taxation and business management in Finland and internationally.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceVasa, FinlandHQ checked Sep 21, 20261-109 contacts →

Indirect evidence

“Olemme Vaasalainen tilintarkastustoimisto, joka toimii koko Suomessa.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceForssa, FinlandHQ checked Sep 21, 20261-108 contacts →

Indirect evidence

“Laskenta-10 on aloittanut toimintansa jo vuonna 2004.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceJuva, FinlandHQ checked Sep 21, 202611-507 contacts →

Indirect evidence

“Elegian Oy on yrittäjävetoinen kolmetoista osaajaa työllistävä auktorisoitu tilitoimisto.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidencePirkanmaa, FinlandHQ checked Sep 21, 202611-507 contacts →

Indirect evidence

“Revisium Oy tarjoaa tilintarkastuspalveluita, sisäisen tarkastuksen palveluita, veroneuvontaa sekä taloushallinnon neuvonta- ja koulutuspalveluita yksityisen ja julkisen sektorin…”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceKuopio, FinlandHQ checked Sep 21, 20261-107 contacts →

Indirect evidence

“APP Audit Oy on kuopiolainen tilintarkastustoimisto, joka on erikoistunut erityisesti pienten ja keskisuurten yritysten sekä asunto- ja kiinteistöyhtiöiden tilintarkastus- ja…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceTurku, FinlandHQ checked Sep 21, 20261-106 contacts →

Indirect evidence

“Hinta/Laatu -suhteella edullinen Tilitoimisto DataTase Oy”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceKouvola, FinlandHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“Valitse mörön­metsästäjämme tilintarkas­tukseen.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 118 large accounting firms based in Finland

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Large accounting firms based in Finland at a glance

As of Sep 21, 2026
38.5%Verified-email coverage
24.8Average contacts per company
1-10Median size (employees)
22.9%Largest-city concentration · Helsinki
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
81
11-50
27
51-200
6
501-1,000
1
1,001-5,000
2

Email recency for this list is measured worldwide rather than for Finland, so it is reported there. Company counts and contact totals on this page are exact for Finland, over 118 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 large accounting 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 Finland whose own description of what they do matches “large accounting 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 large accounting 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 large accounting firms, and records with no verified work email. Companies headquartered outside Finland 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, 1,127 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 21, 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.

Large accounting firms by metro

  • Large accounting firms in Helsinki27

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 large accounting 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 large accounting firms are there based in Finland?

RevenueBase identified 118 large accounting firms headquartered in Finland 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?

Kpmg Finland, headquartered in Helsinki, tops this list with the largest team on record.

Which city has the most large accounting firms?

Helsinki leads with 27 headquartered companies, followed by Turku (8) and Tampere (7).

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 1,127 verified decision-maker contacts tracked across these 118 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 21, 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.