Company lists · Data refreshed September 2026

Top 25 Architectural firms for multifamily based in Helsinki, Finland

RevenueBase identified 38 architectural firms for multifamily headquartered in Helsinki, Finland as of September 2026 and tracks 308 professional contacts across them, including 156 with verified work emails. Across Finland, Helsinki is the largest hub for this category.

This list covers architectural firms for multifamily 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 30, 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 30, 2026 86% judged on-target in blind review
38Companies
308Contacts tracked
156Verified emails
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The 25 largest architectural firms for multifamily based in Helsinki, Finland

Ranked by team size
Top 25 of 38 architectural firms for multifamily based in Helsinki, Finland, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to architectural firms for multifamily: 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 30, 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 30, 2026
2Partial evidenceHelsinki, FinlandHQ checked Sep 30, 202611-5044 contacts →

Partial evidence

“ALA Architects Ltd is a Helsinki based architecture firm founded by Juho Grönholm, Antti Nousjoki, Janne Teräsvirta and Samuli Woolston in 2005.”

Source: RevenueBase Database · checked Sep 30, 2026
3Partial evidenceHelsinki, FinlandHQ checked Sep 30, 202651-20030 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
4Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 202611-5014 contacts →

Indirect evidence

“Newil & Bau is a residential developer that provides beautiful and sustainable living experiences for urban dwellers.”

Source: RevenueBase Database · checked Sep 30, 2026
5Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-1012 contacts →

Indirect evidence

“Catedral Group Oy on kokonaisvaltainen rakennus- ja kehityskumppani, joka yhdistää strategisen ajattelun, vahvan projektiosaamisen ja laadukkaan toteutuksen.”

Source: RevenueBase Database · checked Sep 30, 2026
6Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 202611-5010 contacts →

Indirect evidence

“enemmän kuin arkkitehtisuunnittelua -”

Source: RevenueBase Database · checked Sep 30, 2026
7Partial evidenceHelsinki, FinlandHQ checked Sep 30, 202611-509 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 202611-507 contacts →

Indirect evidence

“Space for People Smoother everyday life, with spaces that are the right size and tailored to your needs.”

Source: RevenueBase Database · checked Sep 30, 2026
9Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 202611-507 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
10Partial evidenceHelsinki, FinlandHQ checked Sep 30, 202611-507 contacts →

Partial evidence

“LUNDÉN ARCHITECTURE COMPANY Lunden ArchitectureCompany is a Helsinki based architecture office focused on contemporary challenges of housing, cities and their development +…”

Source: RevenueBase Database · checked Sep 30, 2026
11Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-106 contacts →

Indirect evidence

“Scope Design on vuonna 2017 perustettu raikas, moderni ja ketterä toimitilasuunnittelua ja kiinteistökehitystä tarjoava asiantuntijayritys.”

Source: RevenueBase Database · checked Sep 30, 2026
12Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 202611-505 contacts →

Indirect evidence

“LPV arkkitehdit on täyden palvelun arkkitehtisuunnittelua tarjoava yritys.”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
14Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 202611-504 contacts →

Indirect evidence

“Puroplan on hotellien, ravintoloiden ja liiketilojen suunnitteluun erikoistunut arkkitehti- ja sisustusarkkitehtitoimisto.”

Source: RevenueBase Database · checked Sep 30, 2026
15Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-103 contacts →

Indirect evidence

“Arkkitehtitoimisto Hormia on Helsingin Munkkiniemessä sijaitseva, vuonna 1987 perustettu arkkitehtitoimisto.”

Source: RevenueBase Database · checked Sep 30, 2026
16Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 202611-503 contacts →

Indirect evidence

“Architects Anttila & Rusanen Oy/Ltd.”

Source: RevenueBase Database · checked Sep 30, 2026
17Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
18Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
19Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-103 contacts →

Indirect evidence

“Group of architects designing housing both new buildings/ renovation projects and urban planning from plot sketches to city scale projects.”

Source: RevenueBase Database · checked Sep 30, 2026
20Partial evidenceHelsinki, FinlandHQ checked Sep 30, 20261-102 contacts →

Partial evidence

“Our aim is to utilise the potential of architecture as well as the resources available to the maximum and create spaces of subtle wonder.”

Source: RevenueBase Database · checked Sep 30, 2026
21Partial evidenceHelsinki, FinlandHQ checked Sep 30, 20261-102 contacts →

Partial evidence

“We are a small but versatile architectural office based in Helsinki.”

Source: RevenueBase Database · checked Sep 30, 2026
22Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

“Company: Founded in 2002 (1981-2002 50% of Penttinen & Tiensuu Architects Ltd) Professional liability insurance ATL Member of the Association of Finnish Architects’ Offices (ATL)…”

Source: RevenueBase Database · checked Sep 30, 2026
23Partial evidenceHelsinki, FinlandHQ checked Sep 30, 20261-101 contacts →

Partial evidence

“Architecture company from Helsinki”

Source: RevenueBase Database · checked Sep 30, 2026
24Partial evidenceHelsinki, FinlandHQ checked Sep 30, 20261-101 contacts →

Partial evidence

“OSUMA provides innovative architectural design services with a customer oriented approach.”

Source: RevenueBase Database · checked Sep 30, 2026
25Indirect evidenceHelsinki, FinlandHQ checked Sep 30, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026

Showing 25 of 38 architectural firms for multifamily based in Helsinki, Finland

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Architectural firms for multifamily based in Helsinki, Finland at a glance

As of Sep 30, 2026
50.6%Verified-email coverage
8.1Average contacts per company
1-10Median size (employees)
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
16
51-200
2

Email recency for this list is measured across the whole Finland list rather than for Helsinki, so it is reported there. Company counts and contact totals on this page are exact for Helsinki, over 38 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 architectural firms for multifamily, 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 “architectural firms for multifamily”. 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 architectural firms for multifamily), 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 architectural firms for multifamily, 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, 156 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 30, 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 architectural firms for multifamily, 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 architectural firms for multifamily are there based in Helsinki, Finland?

RevenueBase identified 38 architectural firms for multifamily 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?

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

Which city in Finland has the most architectural firms for multifamily?

Helsinki leads Finland with 38 headquartered companies, followed by Tampere (11) and Oulu (5).

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 156 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 30, 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.