Company lists · Data refreshed September 2026

Top 25 Renewable energy integration consultants based in Finland

Name: Renewable energy integration consultants based in Finland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 54 companies tracked

RevenueBase identified 54 renewable energy integration consultants headquartered in Finland as of September 2026 and tracks 1,582 professional contacts across them, including 737 with verified work emails. Helsinki is the largest hub.

This list covers renewable energy integration consultants 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 17, 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 17, 2026 86% judged on-target in blind review

54Companies

1,582Contacts tracked

737Verified emails

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The 25 largest renewable energy integration consultants based in Finland

Ranked by team size

Top 25 of 54 renewable energy integration consultants based in Finland, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy integration consultants: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Wärtsilä Energy	Strong evidence	Helsinki, FinlandHQ checked Sep 17, 2026	10001+	940 contacts →
	Strong evidence “Wärtsilä leads the transition towards a 100% renewable energy future.” Source: RevenueBase Database · checked Sep 17, 2026
2	Insplan OY	Indirect evidence	Porvoo, FinlandHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “Insplan on kumppanisi vihreän siirtymän toteuttamisessa.” Source: RevenueBase Database · checked Sep 17, 2026
3	Nepower	Strong evidence	Vaasa, FinlandHQ checked Sep 17, 2026	51-200	37 contacts →
	Strong evidence “NEPower delivers electrification solutions for the industrial, grid and renewable energy sectors.” Source: RevenueBase Database · checked Sep 17, 2026
4	Etha OY	Partial evidence	Vaasa, FinlandHQ checked Sep 17, 2026	11-50	35 contacts →
	Partial evidence “We use our pioneering experience originating in wind power to help our customers seize the opportunities of the green transition in all fields of sustainable energy production.” Source: RevenueBase Database · checked Sep 17, 2026
5	Lemkem	Partial evidence	Lahti, FinlandHQ checked Sep 17, 2026	51-200	25 contacts →
	Partial evidence “Lemkem is the leading turnkey sustainable energy solutions provider in Finland.” Source: RevenueBase Database · checked Sep 17, 2026
6	Enico OY	Strong evidence	Tampere, FinlandHQ checked Sep 17, 2026	1-10	22 contacts →
	Strong evidence “Enico offers wide-ranging production, manufacturing and project services in the field of renewable energy.” Source: RevenueBase Database · checked Sep 17, 2026
7	Arenso OY Arctic Energy Solutions	Strong evidence	Pori, FinlandHQ checked Sep 17, 2026	51-200	21 contacts →
	Strong evidence “Arenso – Arctic Energy Solutions – provides cutting-edge expertise in sustainable and impactful renewable energy.” Source: RevenueBase Database · checked Sep 17, 2026
8	Forus OY	Indirect evidence	Helsinki, FinlandHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Forus is a novel finance and sales company that develops services to stop climate-change profitably.” Source: RevenueBase Database · checked Sep 17, 2026
9	Planora OY	Strong evidence	Oulu, FinlandHQ checked Sep 17, 2026	11-50	20 contacts →
	Strong evidence “Planora Oy was founded in 1987 and currently employs over 30 full-time energy engineers and consultants, environmental engineers, energy system designers, software developers and…” Source: RevenueBase Database · checked Sep 17, 2026
10	CFE Finland OY	Partial evidence	Oulu, FinlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Partial evidence “CFE Finland is an independent expert company in energy infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
11	Oomi Solar	Indirect evidence	Vantaa, FinlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Olemme kotimainen toimija ja kokenut aurinkoenergian asiantuntija.” Source: RevenueBase Database · checked Sep 17, 2026
12	Ampner OY	Strong evidence	Helsinki, FinlandHQ checked Sep 17, 2026	11-50	16 contacts →
	Strong evidence “Ampner Oy – Power Engineering & DC Power Solutions for a Renewable Future Ampner is a Finnish technology company specialized in connecting renewable energy, energy storage systems…” Source: RevenueBase Database · checked Sep 17, 2026
13	Tuulia Energy OY	Partial evidence	Pori, FinlandHQ checked Sep 17, 2026	51-200	15 contacts →
	Partial evidence “Cleaner energy in capable hands.” Source: RevenueBase Database · checked Sep 17, 2026
14	Sustera Energy Consulting OY	Partial evidence	Helsinki, FinlandHQ checked Sep 17, 2026	51-200	10 contacts →
	Partial evidence “Sustera Energy Consulting Oy on osa Sustera Groupia.” Source: RevenueBase Database · checked Sep 17, 2026
15	Novox OY	Partial evidence	Espoo, FinlandHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial evidence “Novox is an engineering consulting company specialiced in clean energy and in energy economics.” Source: RevenueBase Database · checked Sep 17, 2026
16	Re-Tech	Partial evidence	Helsinki, FinlandHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial evidence “RE-Tech is your dedicated partner in renewable industry.” Source: RevenueBase Database · checked Sep 17, 2026
17	Flexens OY AB	Partial evidence	Helsinki, FinlandHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “Flexens is a consultancy and a project development company.” Source: RevenueBase Database · checked Sep 17, 2026
18	Termode OY	Partial evidence	Oulu, FinlandHQ checked Sep 17, 2026	1-10	5 contacts →
	Partial evidence “Termode on luotettava ja palveleva kumppani, joka auttaa asiakkaitaan energiasektorin haasteissa tarjoamalla erilaisia asiantuntija- ja modernisointipalveluita puhtaampaan…” Source: RevenueBase Database · checked Sep 17, 2026
19	Suomen Energiainsinöörit OY	Partial evidence	Helsinki, FinlandHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “Energiatehokkuuden parantaminen Useimmissa rakennuksissa voidaan energiatehokkuutta parantaa edullisilla teknisillä ratkaisuilla.” Source: RevenueBase Database · checked Sep 17, 2026
20	Wahlres	Strong evidence	Vantaa, FinlandHQ checked Sep 17, 2026	1-10	3 contacts →
	Strong evidence “Wahlres Oy was founded in 2016 and aims to reduce the reliance of Finnish buildings on non-renewable energy sources.” Source: RevenueBase Database · checked Sep 17, 2026
21	Wind Controller OY	Strong evidence	Oulu, FinlandHQ checked Sep 17, 2026	11-50	3 contacts →
	Strong evidence “We provide services for renewable energy industry in Northern Europe.” Source: RevenueBase Database · checked Sep 17, 2026
22	Renewe Group OY Helsinki	Partial evidence	Helsinki, FinlandHQ checked Sep 17, 2026	1-10	3 contacts →
	Partial evidence “RENEWE - Uusiutuvan energian asiantuntijasi Suomen johtavat aurinkoenergia, lämpöpumppu, lataus- ja jäähdytysjärjestelmät sekä kokonaispalvelut yhdestä osoitteesta, suunnittelusta…” Source: RevenueBase Database · checked Sep 17, 2026
23	Carelin	Indirect evidence	Seinajoki Hyllykallio, FinlandHQ checked Sep 17, 2026	11-50	2 contacts →
	Indirect evidence “Carelin provides services to wind power industry focusing on production phase and life cycle management services.” Source: RevenueBase Database · checked Sep 17, 2026
24	Benet LTD	Strong evidence	Jyväskylä, FinlandHQ checked Sep 17, 2026	1-10	2 contacts →
	Strong evidence “Benet is renewable energy consulting company operating internationally.” Source: RevenueBase Database · checked Sep 17, 2026
25	Sähkötekniikka OY Kari Sirén	Indirect evidence	Tampere, FinlandHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence “Vuonna 1993 perustettu Sähkötekniikka Oy Kari Sirén on tamperelainen sähkötekniikan konsultti- ja insinööritoimisto, joka tarjoaa luotettavia ratkaisuja rakennus- ja…” Source: RevenueBase Database · checked Sep 17, 2026

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: renewable energy integration consultants. 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 renewable energy integration consultants.
Partial evidence: Its own public description names part of renewable energy integration consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy integration consultants. 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 54 renewable energy integration consultants based in Finland

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Renewable energy integration consultants based in Finland at a glance

As of Sep 17, 2026

46.6%Verified-email coverage

29.3Average contacts per company

1-10Median size (employees)

31.5%Largest-city concentration · Helsinki

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

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 54 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 renewable energy integration consultants, 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 “renewable energy integration consultants”. 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 renewable energy integration consultants), 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 renewable energy integration consultants, 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, 737 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 17, 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 renewable energy integration consultants, 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 renewable energy integration consultants are there based in Finland?

RevenueBase identified 54 renewable energy integration consultants 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?

Wärtsilä Energy, headquartered in Helsinki, tops this list with the largest team on record.

Which city has the most renewable energy integration consultants?

Helsinki leads with 17 headquartered companies, followed by Oulu (6) and Tampere (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 737 verified decision-maker contacts tracked across these 54 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 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 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.