Company lists · Data refreshed September 2026

Top 14 Accounting outsourcing tech companies based in Helsinki, Finland

RevenueBase identified 32 accounting outsourcing tech companies headquartered in Helsinki, Finland as of September 2026 and tracks 167 professional contacts across them, including 88 with verified work emails and 8 with mobile numbers. Helsinki is the largest hub.

This list covers accounting outsourcing tech companies headquartered in Helsinki, 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 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
32Companies
167Contacts tracked
88Verified emails
8Mobile numbers
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The 14 largest accounting outsourcing tech companies based in Helsinki, Finland

Ranked by team size
Top 14 of 32 accounting outsourcing tech companies based in Helsinki, Finland, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting outsourcing tech 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
1Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 202651-20044 contacts →

Indirect evidence

“Lemon Tree on uuden ajan tilitoimisto ja ohjelmistotalo.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 202611-5027 contacts →

Indirect evidence

“Pienten ja keskisuurten yritysten palveleva tilitoimisto.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 202611-5017 contacts →

Indirect evidence

“Tonava syntyi vuonna 2019 halusta tarjota asiakkaille parempaa palvelua ja alan osaajille paras mahdollinen työpaikka.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 202611-506 contacts →

Indirect evidence

“Rohkenemme sanoa, että olemme Suomen kokenein, 100% sähköinen, Procountor-tilitoimisto.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 202611-504 contacts →

Indirect evidence

“Hyvä tilitoimisto on yrittäjälle monipuolinen ja luotettava kumppani.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“Kota tarjoaa tilitoimisto- ja asiantuntijapalvelut kaikenkokoisille yrityksille.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“Pirteän ratkaisunhaluista taloushallintoa, erityisesti kasvuhaluisille yrityksille.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“Taloushallinto on helppoa ja paikasta riippumatonta!”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“Ulkoista talouspäällikön tehtävät tai kirjanpito – autamme tekemään liiketoiminnastasi helpompaa ja kannattavampaa.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 2026501-1,0002 contacts →

Indirect evidence

“Norian tarjoaa taloushallinnon ulkoistus- ja automaatiopalveluja pyrkien tuottamaan ne fiksummin, nopeammin ja paremmin kuin muut.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“Finacc tarjoaa luotettavia ja ammattitaitoisia kirjanpidon, palkanlaskennan- ja verokonsultoinnin palveluita.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“Autamme yrityksiä taloushallinnon haasteissa.”

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceHelsinki, FinlandHQ checked Sep 22, 20261-102 contacts →

Partial evidence

“Seuraamo Oy - accounting company.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceHelsinki, FinlandHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026

Showing 14 of 32 accounting outsourcing tech companies based in Helsinki, Finland

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Accounting outsourcing tech companies based in Helsinki, Finland at a glance

As of Sep 22, 2026
52.7%Verified-email coverage
4.8%Mobile-number coverage
5.2Average contacts per company
1-10Median size (employees)
90.6%Largest-city concentration · Helsinki
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
6
51-200
1
501-1,000
1

Freshness & accuracy

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

Email last verified

Median 25.0d

Company record updated

Median 77.0d

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 outsourcing tech 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 Helsinki, Finland whose own description of what they do matches “accounting outsourcing tech 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 outsourcing tech 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 outsourcing tech companies, and records with no verified work email. Companies headquartered outside Helsinki 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, 88 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 outsourcing tech companies by metro in Finland

  • Accounting outsourcing tech companies in Helsinki29

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 outsourcing tech 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 outsourcing tech companies are there based in Helsinki, Finland?

RevenueBase identified 32 accounting outsourcing tech companies headquartered in Helsinki, 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?

Tilitoimisto Lemon Tree OY, headquartered in Helsinki, tops this list with the largest team on record.

Which city has the most accounting outsourcing tech companies?

Helsinki leads with 29 headquartered companies, followed by Tampere (14) and Espoo (13).

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 88 verified decision-maker contacts tracked across these 32 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.