Company lists · Data refreshed September 2026
Top 25 Water companies based in Finland
RevenueBase identified 56 water companies headquartered in Finland as of September 2026 and tracks 435 professional contacts across them, including 246 with verified work emails. Helsinki is the largest hub.
This list covers water companies 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 19, 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.
The 25 largest water companies based in Finland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 43 contacts → | ||||
Strong evidence “Flootech Flootech’s vision is creating value by cleaning water through innovation, creativity and expertise in clean water, process water, wastewater treatment and water reuse and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 33 contacts → | ||||
Indirect evidence “Oy Lining Ab tarjoaa teknisesti korkealaatuisia laitteita, ratkaisuja ja komponentteja päätoimialanaan vesitekniikka.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 25 contacts → | ||||
Indirect evidence “KL-Lämpö tarjoaa kokonaisvaltaisia vedenkäsittelypalveluita teollisuuteen, voimalaitoksiin ja kiinteistöihin.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 24 contacts → | ||||
Indirect evidence “Turun vesihuollosta, eli puhtaan veden toimituksesta ja viemäriveden johtamisesta puhdistamolle vastaa hulevesiä lukuun ottamatta Turun Vesihuolto Oy, joka on kokonaan Turun…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 23 contacts → | ||||
Indirect evidence “Meidät tunnetaan osaamisestamme.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 16 contacts → | ||||
Indirect evidence “Kouvolan Veden päämääränä ovat laadukkaat vesihuoltopalvelut alueemme asiakkaille: raikas käyttövesi, toimintavarma verkosto ja ympäristöä kunnioittava jätevesien käsittely.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 16 contacts → | ||||
Indirect evidence “Huolehdimme 168 asukkaan ja elinkeinoelämän vesihuoltopalveluista Lahdessa, Hollolassa, Iitissä ja Heinolassa.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 16 contacts → | ||||
Indirect evidence “Vesihuollon asiakastieto- ja laskutusjärjestelmä.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 16 contacts → | ||||
Indirect evidence “Kymen Vesi Oy on eteläisessä Kymenlaaksossa toimiva alueellinen vesihuoltoyhtiö, jonka omistavat Kotkan ja Kouvolan kaupungit sekä Pyhtään kunta.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 15 contacts → | ||||
Indirect evidence “Puhdasvesipalvelut - kaivojen puhdistukset, huollot ja desinfioinnit.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 contacts → | ||||
Strong evidence “Operon is a leading solution provider and service company for water and sludge treatment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 12 contacts → | ||||
Strong evidence “Slatek Oy specialises in supplying the water management industry with power, instrumentation and automation solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 contacts → | ||||
Indirect evidence “Vesilaitosyhdistys (VVY) on vesihuoltoalan yhteisjärjestö, jonka tehtävänä on edistää vesihuoltolaitosten toimintaedellytyksiä.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Indirect evidence “Hämeenlinnan Seudun Vesi Oy eli HS-Vesi on Hämeenlinnan, Hattulan ja Akaan omistama vuonna 2001 perustettu, asiakkaitaan ympärivuorokautisesti palveleva vesihuoltoyhtiö.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 contacts → | ||||
Indirect evidence “WEST Invest Group on vahvasti kasvava perhe- ja konserniyhtiö.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Strong evidence “Koka Oy is a family-owned company providing water and energy metering services, selling water meters, valves and other products for HVAC professionals and industrial customers in…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 contacts → | ||||
Indirect evidence “Tuotamme ja toimitamme korkealaatuista talousvettä Turun seudulle osakaskunnillemme Kaarinalle, Liedolle, Maskulle, Naantalille, Nousiaisille, Paimiolle, Raisiolle, Ruskolle ja…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Indirect evidence “Olemme Kemin kaupungin omistama monialayritys, jonka toimialoina ovat sähkön siirto, kaukolämpö ja vesihuolto.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Indirect evidence “Olemme maailmanlaajuinen tiimi, jolla on yhteinen tavoite: haluamme luoda edistyneitä teknisiä ratkaisuja maailman vesihaasteisiin.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 contacts → | ||||
Indirect evidence “EVO huolehtii Kuusamon alueella puhtaan veden jakelusta, jäteveden puhdistamisesta sekä kaukolämmön tuotannosta ja jakelusta.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 contacts → | ||||
Indirect evidence “Makela-Plast Ltd was founded in 2004.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Strong evidence “Fenno Water Ltd Oy (FW) is focused on water and waste water treatment processes and designing & manufacturing of treatment plants.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Indirect evidence “Vesikolmio Oy on Kalajokilaakson kuntien omistama vuonna 1968 perustettu tukkuvesiyhtiö.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Strong evidence “Raision Vesi Oy is a municipally owned water utility company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: water companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names water companies.
- Partial evidence
- Its own public description names part of water companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 56 water companies based in Finland
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Water companies based in Finland at a glance
As of Sep 19, 2026Companies by employee count
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 56 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 water 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 Finland whose own description of what they do matches “water 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 water 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 water companies, 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, 246 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 19, 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 water 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 water companies are there based in Finland?
RevenueBase identified 56 water companies 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?
Flootech, headquartered in Turku, tops this list with the largest team on record.
Which city has the most water companies?
Helsinki leads with 3 headquartered companies, followed by Kuopio (3) and Turku (3).
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 246 verified decision-maker contacts tracked across these 56 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 19, 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.