Company lists · Data refreshed November 2026

Top 25 Turnkey building & installation services based in Finland

Name: Turnkey building & installation services based in Finland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 3, 2026 92 companies tracked

RevenueBase identified 92 company matches for turnkey building & installation services associated with Finland as of November 2026 and tracks 850 professional contacts across them, including 507 with verified work emails. Helsinki is the largest hub.

This list covers company matches for turnkey building & installation services 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 November 3, 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 Nov 3, 2026 How this list was built

92Companies

850Contacts tracked

507Verified emails

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The 25 largest turnkey building & installation services based in Finland

Ranked by team size

Top 25 of 92 company matches for turnkey building & installation services based in Finland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 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	JTA Connection	Exact match	Tampere, FinlandHQ recorded Nov 3, 2026	51-200	81 contacts →
	Exact match “JTA-Connection is a global enterprise providing a versatile range of effective, high-quality solutions to meet the rapidly changing demands of technology industries.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
2	ARO Systems OY	Exact match	Helsinki, FinlandHQ recorded Nov 3, 2026	201-500	70 contacts →
	Exact match “Aro Systems Oy on Suomen johtavia talotekniikan asiantuntija- ja palveluyhtiöitä yli 70 vuoden kokemuksella.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3	Saipu OY	Exact match	Helsinki, FinlandHQ recorded Nov 3, 2026	501-1,000	64 contacts →
	Exact match “Saipun toiminta kattaa kaiken talotekniikan – suunnittelun, projektoinnin ja ylläpidon sisältäen: lämmitys, ilmanvaihto- ja ilmastointijärjestelmät, käyttö- ja…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4	Best-Hall OY	Exact match	Kälviä, FinlandHQ recorded Nov 3, 2026	51-200	44 contacts →
	Exact match “When you need a full service fabric structure supplier, choose Best-Hall.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
5	Masor Works OY	Exact match	Nokia, FinlandHQ recorded Nov 3, 2026	51-200	37 contacts →
	Exact match “Masor Works Oy, established in 2009, is specialized in industrial maintenance and installation.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6	ETH Group OY	Exact match	Eura, FinlandHQ recorded Nov 3, 2026	51-200	34 contacts →
	Exact match “ETH Group Oy on vuonna 2006 perustettu teollisuuden ja voimaloiden asennusta, huoltoa ja kunnossapitoa tekevä yhtiö.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7	Paretec OY	Exact match	Vantaa, FinlandHQ recorded Nov 3, 2026	51-200	30 contacts →
	Exact match “Paretec Oy on valtakunnallinen sähköurakoinnin, rakennusautomaation ja turvallisuustekniikan toimija.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
8	Elvak OY	Exact match	Kempele, FinlandHQ recorded Nov 3, 2026	11-50	30 contacts →
	Exact match “Me olemme Elvak, avulias edelläkävijä ja talotekniikan työparisi.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
9	Rakennus Grahn OY	Exact match	Helsinki, FinlandHQ recorded Nov 3, 2026	11-50	27 contacts →
	Exact match “Rakennus Grahn on Stadin Saneeraaja.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
10	Astora-Rakennus OY	Exact match	Pori, FinlandHQ recorded Nov 3, 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 · Nov 3, 2026 · View company records in RevenueBase
11	Notra OY	Exact match	Rauma, FinlandHQ recorded Nov 3, 2026	51-200	21 contacts →
	Exact match “Notra on teollisuuden kunnossapitoon, modernisointeihin ja projektitoimituksiin erikoistunut yritys.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12	Insecon OY	Exact match	Tampere, FinlandHQ recorded Nov 3, 2026	51-200	19 contacts →
	Exact match “The company is specialized in electrical and automation services for customers at industrial and facility segments.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13	ASES	Exact match	Kemi, FinlandHQ recorded Nov 3, 2026	11-50	19 contacts →
	Exact match “Trustworthy and reliable partner for all electrical and automation projects in process industries, from preplanning to ensuring operational continuity.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14	Vexatec OY	Exact match	Oulu, FinlandHQ recorded Nov 3, 2026	51-200	18 contacts →
	Exact match “Vexatec is a nationwide construction company combining project development, design-build contracting and in-house building services.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15	Lvi-Trio OY	Exact match	Vantaa, FinlandHQ recorded Nov 3, 2026	51-200	17 contacts →
	Exact match “Olemme pääkaupunkiseudun johtavia LVI-huollon ja LVI-palvelu-urakoinnin asiantuntijayrityksiä.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
16	Js-Group OY	Exact match	Laitila, FinlandHQ recorded Nov 3, 2026	51-200	16 contacts →
	Exact match “JS-Group Oy specialises in industrial maintenance and installations.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17	Tamcontrol OY	Exact match	Ylöjärvi, FinlandHQ recorded Nov 3, 2026	11-50	15 contacts →
	Exact match “TamControl Oy toimii luotettavana kumppaninasi kotimaassa ja ulkomailla.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18	PCBI	Exact match	Espoo, FinlandHQ recorded Nov 3, 2026	11-50	14 contacts →
	Exact match “PCBI on uudenlainen kiinteistötekniikan asiantuntijayritys, jollaista Suomessa ei ole vielä nähty.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19	SYSTE	Exact match	Hyvinkää, FinlandHQ recorded Nov 3, 2026	11-50	12 contacts →
	Exact match “Syste Oy on vuonna 2014 perustettu teollisuussähköasennuksiin erikoistunut palveluntarjoaja, joka on kohdistettu tuottamaan sekä sähkö, automaatio, että instrumentti…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20	Spinea OY	Exact match	Helsinki, FinlandHQ recorded Nov 3, 2026	11-50	12 contacts →
	Exact match “Spinea Oy – Teknisen kaupan edelläkävijä jo yli 30 vuotta Spinea Oy on vuonna 1992 perustettu tekninen maahantuonti, tukku- ja asennusliike, joka toimittaa laadukkaita ja…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21	USK Rakennus OY	Exact match	Tampere, FinlandHQ recorded Nov 3, 2026	11-50	11 contacts →
	Exact match “USK Rakennus Oy on asiantunteva LVI- ja rakennuspalveluita tarjoava yritys.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22	Energytech Finland OY	Exact match	Halikko, FinlandHQ recorded Nov 3, 2026	1-10	11 contacts →
	Exact match “Energytech on teollisuuden energiateknisten järjestelmien maahantuontiin, asennuksiin ja huoltoon erikoistunut yritys, joka toteuttaa asiakkailleen räätälöityjä energiaratkaisuja…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23	AMP Yhtiöt OY	Exact match	Helsinki, FinlandHQ recorded Nov 3, 2026	11-50	10 contacts →
	Exact match “When it comes to designing, building, furnishing, maintaining and lighting spaces, understanding the big picture is key.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24	Kuopion Finteco Lvis OY	Exact match	Kuopio, FinlandHQ recorded Nov 3, 2026	11-50	10 contacts →
	Exact match “Kuopion Finteco LVIS Oy on kokonaisvaltainen talotekniikka-alan osaaja.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25	ESP Lahti OY	Exact match	FinlandHQ recorded Nov 3, 2026	51-200	10 contacts →
	Exact match “Sähköneliö Oy provides comprehensive electrical and HVAC services, including installation and accessories, for new buildings and renovation projects alike.” Recorded in the RevenueBase company graph · Nov 3, 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 “turnkey building & installation services”. 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 92 turnkey building & installation services based in Finland

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Turnkey building & installation services based in Finland at a glance

As of Nov 3, 2026

59.6%Verified-email coverage

9.2Average contacts per company

11-50Median size (employees)

12.0%Largest-city concentration · Helsinki

Nov 3, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 92 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 “turnkey building & installation services” 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 507 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 November 3, 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 “turnkey building & installation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many turnkey building & installation services are there based in Finland?

RevenueBase identified 92 company matches for turnkey building & installation services associated with Finland as of November 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?

JTA Connection tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most turnkey building & installation services?

Helsinki leads with 11 company records, followed by Tampere (7) and Espoo (5).

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 507 professional contacts with verified work emails tracked across these 92 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 November 3, 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.