Company lists · Data refreshed September 2026

Top 25 Adaptive reuse architecture firms based in Finland

RevenueBase identified 77 adaptive reuse architecture firms headquartered in Finland as of September 2026 and tracks 448 professional contacts across them, including 249 with verified work emails. Helsinki is the largest hub.

This list covers adaptive reuse architecture 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 16, 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 16, 2026 86% judged on-target in blind review
77Companies
448Contacts tracked
249Verified emails
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The 25 largest adaptive reuse architecture firms based in Finland

Ranked by team size
Top 25 of 77 adaptive reuse architecture firms based in Finland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to adaptive reuse architecture 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 16, 202651-20048 contacts →

Indirect evidence

“ONE Architects is formed from the alignment of three successful studios AW2 Architects, B&M Architects and Konkret.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceTampere, FinlandHQ checked Sep 16, 202651-20034 contacts →

Indirect evidence

“Modernia ja innovatiivista suunnittelua vuodesta 1933.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202651-20030 contacts →

Partial evidence

“L Architects is a Helsinki based architectural office, founded in 1993.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceFinlandHQ checked Sep 16, 202611-5020 contacts →

Partial evidence

“Tengbom Finland is an architectural company in Helsinki, Finland, with ca 30 employees.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5015 contacts →

Partial evidence

“Architects NRT Ltd is a Helsinki-based architectural firm with extensive experience in creating high-quality and sustainable architecture.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceTampere, FinlandHQ checked Sep 16, 202611-5013 contacts →

Indirect evidence

“Arkkitehdit Kontukoski Oy on suunnittelutoimisto, jossa teemme rakennus, kaupunki- ja sisustussuunnittelua sekä hankkeiden esisuunnittelua.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5012 contacts →

Partial evidence

“Avarrus is a Helsinki-based architectural office.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

“SAATSI arkkitehdit luo uutta ja vaalii vanhaa kestävää ympäristöä.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5010 contacts →

Indirect evidence

“enemmän kuin arkkitehtisuunnittelua -”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceEspoo, FinlandHQ checked Sep 16, 20261-1010 contacts →

Indirect evidence

“Valitse kuunteleva ja innovatiivinen suunnittelutoimisto uudis- tai korjausrakennushankkeeseesi.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-509 contacts →

Partial evidence

“Huttunen-Lipasti Architects is an innovative 25-person Helsinki based architecture firm.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceOulu, FinlandHQ checked Sep 16, 202611-509 contacts →

Indirect evidence

“Tähtäämme jokaisessa tehtävässä yksinkertaisesti innovatiiviseen ratkaisuun, joka on viihtyisyyttä luova, paikkaan sopiva ja kestävyysnäkökohdat huomioiva.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceTurku, FinlandHQ checked Sep 16, 202611-509 contacts →

Indirect evidence

“Haroma & Partners Architects was founded in 2004 and comprises architects and building design professionals with an established history of working together.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceTurku, FinlandHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

“Matti Takala Architects is an international architects office founded in 1992.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

“At our office, we pursue an interactive and analytic way of working, where projects are approached from multiple angles.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

“Arkkitehtuuri- ja muotoilutoimisto Talli keskittyy toiminnassaan vaativaan korjausrakentamiseen, asuntosuunnitteluun ja koulu- ja päiväkotisuunnitteluun.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

“Jaakkola Arkkitehdit aloitti toimintansa vuonna 1985 nimellä Arkkitehtitoimisto Hannu Jaakkola.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceTampere, FinlandHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

“Tampereella toimiva toimistomme tarjoaa rakennus- ja pääsuunnittelua monilla eri osa-alueilla, mm.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

“Architects´office concentrating on Design and Developement of Bussines Centers, Housing and Public buildings, special knowledge on historically protected buildings”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceTampere, FinlandHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

“Tamperelainen Arkkitehtitoimisto Ahonen & Kangasvieri Oy on asuntojen uudis- ja korjausrakentamisen kokenut erikoisosaaja.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-505 contacts →

Indirect evidence

“LPV arkkitehdit on täyden palvelun arkkitehtisuunnittelua tarjoava yritys.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

“Tarjoamme kattavat arkkitehtipalvelut niin kaavamuutoksiin kuin liike, toimisto, teollisuus- ja asuinrakennussuunnitteluun aina uudisrakentamisesta peruskorjauksiin.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

“Architects R+K is founded by Helsinki-based architects Hilla Rudanko and Anssi Kankkunen.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceVaasa, FinlandHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

“Since 1973 our office has offered competent and reliable designer services, planning new buildings and renovations of existing ones.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceTampere, FinlandHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“Arkkitehtitoimisto Forssi Oy on erikoistunut vaativien restaurointi- ja korjausrakentamishankkeiden suunnitteluun.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 77 adaptive reuse architecture firms based in Finland

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Adaptive reuse architecture firms based in Finland at a glance

As of Sep 16, 2026
55.6%Verified-email coverage
5.8Average contacts per company
1-10Median size (employees)
49.4%Largest-city concentration · Helsinki
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
33
51-200
3

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 77 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 adaptive reuse architecture 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 “adaptive reuse architecture 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 adaptive reuse architecture 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 adaptive reuse architecture 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, 249 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 16, 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.

Adaptive reuse architecture firms 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 adaptive reuse architecture 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 adaptive reuse architecture firms are there based in Finland?

RevenueBase identified 77 adaptive reuse architecture 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?

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

Which city has the most adaptive reuse architecture firms?

Helsinki leads with 38 headquartered companies, followed by Tampere (10) and Oulu (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 249 verified decision-maker contacts tracked across these 77 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 16, 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.