Company lists · Data refreshed September 2026

Top 25 Preconstruction services companies based in Finland

Name: Preconstruction services companies based in Finland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 150 companies tracked

RevenueBase identified 150 company matches for preconstruction services companies associated with Finland as of September 2026 and tracks 876 professional contacts across them, including 475 with verified work emails. Helsinki is the largest hub.

This list covers company matches for preconstruction services companies associated with Finland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

150Companies

876Contacts tracked

475Verified emails

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The 25 largest preconstruction services companies based in Finland

Ranked by team size

Top 25 of 150 company matches for preconstruction services companies based in Finland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Rakennuttajatoimisto HTJ OY	Exact match	Vantaa, FinlandHQ recorded Sep 17, 2026	201-500	149 contacts →
	Exact match “HTJ on yksi Suomen johtavista rakennuttajatoimistoista.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	RAPP	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	51-200	80 contacts →
	Exact match “RAPP Oy on yksi Suomen vanhimmista rakennuttajatoimistoista, jolla on rohkeutta toteuttaa rakennuttamisen ja työmaavalvonnan palvelut astetta paremmin.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Takoi Yhtiöt	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	51-200	31 contacts →
	Exact match “Raudanlujaa rakentamisen suunnittelua ja valvontaa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Rakennus Grahn OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “Rakennus Grahn on Stadin Saneeraaja.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Astora-Rakennus OY	Exact match	Pori, FinlandHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match “Historiamme ulottuu yli 35 vuoden taakse Harjavallan Sievariin, jonne rakennusliikkeen ensimmäinen toimipiste avattiin vuonna 1989.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	AKI Hyrkkönen OY	Exact match	Tampere, FinlandHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “Our operations are based on extensive and solid technical expertise.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Planera	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Planera on korjausrakentamisen palveluihin erikoistunut konsulttitoimisto, jolle asiakas on kaiken toiminnan ytimessä.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Areite OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Areite on rakennusalan asiantuntija ja alan kokenut suunnannäyttäjä.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Optiplan	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	201-500	17 contacts →
	Exact match “Hei me muutetaan: Optiplan saa uuden kodin 1.6.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Mirlux OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	51-200	15 contacts →
	Exact match “Mirlux Oy – Luotettava ja tehokas kumppani uudis- ja korjausrakentamiseen!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Intecon OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	1-10	14 contacts →
	Exact match “Project management, construction consultancy, cost analytics, cost management, property and urban development, sustainable development.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Rakennusliike U. Lipsanen OY	Exact match	Naarajärvi, FinlandHQ recorded Sep 17, 2026	51-200	14 contacts →
	Exact match “Rakennusliike U.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Brado OY	Exact match	Jyväskylä, FinlandHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “Se alkuperäinen #rakentamisenkoutsi Kaipaatko säästöjä tilakuluihisi?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Catedral Group OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	1-10	12 contacts →
	Exact match “Catedral Group Oy on kokonaisvaltainen rakennus- ja kehityskumppani, joka yhdistää strategisen ajattelun, vahvan projektiosaamisen ja laadukkaan toteutuksen.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	IP Heikkilä	Exact match	Oulu, FinlandHQ recorded Sep 17, 2026	51-200	12 contacts →
	Exact match “Ainutlaatuista rakentamista.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Ltq-Rakennus OY	Exact match	Vantaa, FinlandHQ recorded Sep 17, 2026	51-200	12 contacts →
	Exact match “LTQ-Rakennus Oy on kokenut logistiikka- ja työmaapalveluiden, olosuhdehallinnan, sekä takuutöiden ammattilainen.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Insinööriavain OY	Exact match	Jyväskylä, FinlandHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Insinööriavain tarjoaa korjaushankkeiden tutkimuksia, suunnittelua, rakennuttamista ja valvontaa sekä teollisuus, urheilu- ja liikerakennusten rakennesuunnittelua.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Contria OY AB	Exact match	Vaasa, FinlandHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Contria Oy is a construction engineering company specialized in structural design based in Vaasa and Seinäjoki in Ostrobothnia, Finland.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Äyräväinen Rakennuttaminen OY	Exact match	Leppävaara, FinlandHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Tarjoamme rakennuttamispalveluita sekä valvontaa kaikille kiinteistöjen omistajille.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Rakennuttamo OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	1-10	10 contacts →
	Exact match “Rakennuttamo Oy on rakennuttamis- ja projektinjohtopalveluihin keskittynyt konsulttiyritys, jonka toimipisteet sijaitsevat Helsingissä ja Lappeenrannassa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Arkcons OY	Exact match	Espoo, FinlandHQ recorded Sep 17, 2026	1-10	10 contacts →
	Exact match “Valitse kuunteleva ja innovatiivinen suunnittelutoimisto uudis- tai korjausrakennushankkeeseesi.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Costa Laskenta OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	1-10	9 contacts →
	Exact match “Costa on rakennushankkeiden määrä- ja kustannuslaskentaan sekä kustannussuunnitteluun erikoistunut asiantuntijayritys.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Infrasector Finland OY	Exact match	Oulu, FinlandHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Tarjoamme infran eri sektoreilla rakennuttamis- ja asiantuntijapalveluita hankkeen valmistelusta takuuajan tehtäviin saakka.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Luovaus Arkkitehdit OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	1-10	9 contacts →
	Exact match “Luovaus Arkkitehdit tarjoaa kaikki arkkitehti- ja pääsuunnittelupalvelut uudis- ja korjausrakentamiseen.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Insinööritoimisto Savolainen OY	Exact match	Iisalmi, FinlandHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Savolainen Insinööritoimisto Oy is a steadily growing expert in construction, providing construction design and consulting services; architectural and structural design services…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “preconstruction services companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 150 preconstruction services companies based in Finland

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Preconstruction services companies based in Finland at a glance

As of Sep 17, 2026

54.2%Verified-email coverage

5.8Average contacts per company

1-10Median size (employees)

25.3%Largest-city concentration · Helsinki

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 150 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Finland whose business descriptions match “preconstruction services companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 475 professional contacts with verified work emails across the full matched dataset. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “preconstruction services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many preconstruction services companies are there based in Finland?

RevenueBase identified 150 company matches for preconstruction services companies associated with Finland as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Rakennuttajatoimisto HTJ OY tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most preconstruction services companies?

Helsinki leads with 38 company records, followed by Espoo (11) and Vantaa (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 475 professional contacts with verified work emails tracked across these 150 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 SmartSearch, 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.