Company lists · Data refreshed September 2026

Top 24 Trust accounting firms based in Finland

RevenueBase identified 38 trust accounting firms headquartered in Finland as of September 2026 and tracks 362 professional contacts across them, including 247 with verified work emails and 11 with mobile numbers. Helsinki is the largest hub.

This list covers trust 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 6, 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 6, 2026 86% judged on-target in blind review
38Companies
362Contacts tracked
247Verified emails
11Mobile numbers
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The 24 largest trust accounting firms based in Finland

Ranked by team size
Top 24 of 38 trust accounting firms based in Finland, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to trust 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 evidenceHelsinki, FinlandHQ checked Sep 6, 2026201-500178 contacts →

“Olemme asiantunteva, pitkiä asiakassuhteita ja kasvollista palvelua vaaliva taloushallinnon luotettava kumppanisi.”

Source: company website · checked Sep 6, 2026
2Partial evidenceHelsinki, FinlandHQ checked Sep 6, 202611-5036 contacts →

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

Source: company website · checked Sep 6, 2026
3Partial evidenceOulu, FinlandHQ checked Sep 6, 202611-5025 contacts →

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

Source: company website · checked Sep 6, 2026
4Indirect evidenceOulu, FinlandHQ checked Sep 6, 202611-5011 contacts →

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

Source: company website · checked Sep 6, 2026
5Indirect evidenceVaasa, FinlandHQ checked Sep 6, 202611-5010 contacts →

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

Source: company website · checked Sep 6, 2026
6Indirect evidenceHelsinki, FinlandHQ checked Sep 6, 202611-508 contacts →

“Suomen Säätiötilipalvelu Oy, aputoiminimeltään Suomen Sijoittajan Tili- ja talouspalvelu, on vakavarainen, riippumaton ja auktorisoitu tilitoimisto, joka on keskittynyt hoitamaan…”

Source: company website · checked Sep 6, 2026
7Indirect evidenceJuva, FinlandHQ checked Sep 6, 202611-507 contacts →

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

Source: company website · checked Sep 6, 2026
8Indirect evidenceVantaa, FinlandHQ checked Sep 6, 20261-105 contacts →

“Osaaminen syventää luottamusta.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceKauhava, FinlandHQ checked Sep 6, 20261-104 contacts →
Source: company website · checked Sep 6, 2026
10Indirect evidencePieksämäki, FinlandHQ checked Sep 6, 20261-103 contacts →

“Talouspalvelut SarLotta Oy on pieni pieksämäkeläinen kolmen osakkaan omistama auktorisoitu tilitoimisto, joka tarjoaa taloushallintopalveluja yrityksille, elinkeinonharjoittajille…”

Source: company website · checked Sep 6, 2026
11Indirect evidenceHämeenlinna, FinlandHQ checked Sep 6, 20261-103 contacts →
Source: company website · checked Sep 6, 2026
12Indirect evidenceOulu, FinlandHQ checked Sep 6, 20261-103 contacts →

“Tiliasema Group Oy on joustava, luotettava ja ammattitaitoinen tilitoimisto Oulussa.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceTurku, FinlandHQ checked Sep 6, 20261-103 contacts →

“TILI-SENO OY, auktorisoitu tilitoimisto Turussa ja Kaarinassa.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceVantaa, FinlandHQ checked Sep 6, 20261-103 contacts →

“Tilitoimisto Humbeg Oy on taloushallintopalveluja tarjoava yritys.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceEspoo, FinlandHQ checked Sep 6, 20261-102 contacts →

“Tulosnurkka Oy on Taloushallintoliiton auktorisoima tilitoimisto ja suomalainen perheyritys.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceSukeva, FinlandHQ checked Sep 6, 20261-102 contacts →

“Tilintarkastuspalvelut ammattitaidolla, yli 30 vuoden kokemuksella!”

Source: company website · checked Sep 6, 2026
17Indirect evidenceForssa, FinlandHQ checked Sep 6, 20261-102 contacts →
Source: company website · checked Sep 6, 2026
18Indirect evidenceTurku, FinlandHQ checked Sep 6, 20261-102 contacts →

“TaxWiller on turkulainen auktorisoitu tilitoimisto kattavilla kirjanpito- ja taloushallintopalveluilla.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceTammela, FinlandHQ checked Sep 6, 2026n/a2 contacts →
Source: company website · checked Sep 6, 2026
20Indirect evidenceLahti, FinlandHQ checked Sep 6, 202611-502 contacts →

“Tulosdata aloitti toimintansa vuonna 1981.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceTampere, FinlandHQ checked Sep 6, 20261-102 contacts →

“Kahden taloushallinnon ammattilaisen perustama tamperelainen tilitoimisto.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceJoensuu, FinlandHQ checked Sep 6, 20261-101 contacts →

“Olemme auktorisoitu tilitoimisto Joensuussa ja palvelemme kaikenkokoisia yrityksiä taloushallinnon eri osa-alueilla.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceOulu, FinlandHQ checked Sep 6, 20261-101 contacts →
Source: company website · checked Sep 6, 2026
24Indirect evidenceForssa, FinlandHQ checked Sep 6, 20261-101 contacts →

“Hämeen Tilitieto on auktorisoitu tilitoimisto, josta saat ammattilaisen henkilökohtaisen palvelun.”

Source: company website · checked Sep 6, 2026

Showing 24 of 38 trust accounting firms based in Finland

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Trust accounting firms based in Finland at a glance

As of Sep 6, 2026
68.2%Verified-email coverage
3.0%Mobile-number coverage
9.5Average contacts per company
1-10Median size (employees)
13.2%Largest-city concentration · Helsinki
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
10
201-500
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 trust 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 “trust 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 trust 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 trust 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, 247 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 6, 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 trust 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 trust accounting firms are there based in Finland?

RevenueBase identified 38 trust 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?

Aallon Group, headquartered in Helsinki, tops this list with the largest team on record.

Which city has the most trust accounting firms?

Helsinki leads with 5 headquartered companies, followed by Oulu (5) and Turku (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 247 verified decision-maker contacts tracked across these 38 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 6, 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.