Company lists · Data refreshed September 2026

Top 25 Energy transition consultants based in Finland

RevenueBase identified 52 energy transition consultants headquartered in Finland as of September 2026 and tracks 1,575 professional contacts across them, including 868 with verified work emails. Helsinki is the largest hub.

This list covers energy transition 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 16, 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 16, 2026 86% judged on-target in blind review
52Companies
1,575Contacts tracked
868Verified emails
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The 25 largest energy transition consultants based in Finland

Ranked by team size
Top 25 of 52 energy transition consultants based in Finland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy transition 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceHelsinki, FinlandHQ checked Sep 16, 202610001+940 contacts →

Strong evidence

“Wärtsilä leads the transition towards a 100% renewable energy future.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 2026201-500220 contacts →

Indirect evidence

“Fimpec is a top expert specializing in consulting, project management and engineering.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidencePorvoo, FinlandHQ checked Sep 16, 202651-20049 contacts →

Indirect evidence

“Insplan on kumppanisi vihreän siirtymän toteuttamisessa.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5038 contacts →

Partial evidence

“We help internationally focused Industrial, financial, utility and other clients take advantage of evolving energy market opportunities globally through world leading data sets…”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202651-20038 contacts →

Partial evidence

“Gaia Consulting Oy is a consultancy for sustainable business.”

Source: RevenueBase Database · checked Sep 16, 2026
6Strong evidenceVaasa, FinlandHQ checked Sep 16, 202611-5035 contacts →

Strong 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 16, 2026
7Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5026 contacts →

Partial evidence

“Kaskas is a growing consultancy specialized in sustainability.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidencePori, FinlandHQ checked Sep 16, 202651-20021 contacts →

Partial evidence

“Arenso – Arctic Energy Solutions – provides cutting-edge expertise in sustainable and impactful renewable energy.”

Source: RevenueBase Database · checked Sep 16, 2026
9Strong evidenceOulu, FinlandHQ checked Sep 16, 202611-5020 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 16, 2026
10Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5020 contacts →

Indirect evidence

“Forus is a novel finance and sales company that develops services to stop climate-change profitably.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceOulu, FinlandHQ checked Sep 16, 202611-5019 contacts →

Partial evidence

“CFE Finland is an independent expert company in energy infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceOulu, FinlandHQ checked Sep 16, 20261-1015 contacts →

Indirect evidence

“Mikko Ahokas Consulting Oy (macon) is technology focused consulting company in the field of Bioeconomy and Cleantech.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5013 contacts →

Partial evidence

“GreenStream Network Ltd is an investor, investment management and advisory company in the fields of renewable energy, energy efficiency and climate finance, with active operations…”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceEspoo, FinlandHQ checked Sep 16, 20261-108 contacts →

Partial evidence

“Novox is an engineering consulting company specialiced in clean energy and in energy economics.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceHelsinki, FinlandHQ checked Sep 16, 20261-108 contacts →

Partial evidence

“Maankäytön, luvituksen ja strategisen suunnittelun asiantuntija- sekä projektinjohtopalveluja Energiamurros & teollisuus Sosiaalinen kestävyys Matkailualueet Henkilökohtaista…”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceHelsinki, FinlandHQ checked Sep 16, 20261-107 contacts →

Partial evidence

“Tyrsky is a Finnish consultancy specialised in climate and sustainability issues.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-506 contacts →

Partial evidence

“Flexens is a consultancy and a project development company.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceOulu, FinlandHQ checked Sep 16, 20261-105 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 16, 2026
19Partial evidenceHelsinki, FinlandHQ checked Sep 16, 20261-104 contacts →

Partial evidence

Energiatehokkuuden parantaminen Useimmissa rakennuksissa voidaan energiatehokkuutta parantaa edullisilla teknisillä ratkaisuilla.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceFinlandHQ checked Sep 16, 202611-503 contacts →

Partial evidence

“Elron is a financial and project development advisory firm focusing on energy-related projects and transactions, as well as on infrastructure projects.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceHelsinki, FinlandHQ checked Sep 16, 20261-103 contacts →

Partial evidence

“RENEWE - Uusiutuvan energian asiantuntijasi Suomen johtavat aurinkoenergia, lämpöpumppu, lataus- ja jäähdytysjärjestelmät sekä kokonaispalvelut yhdestä osoitteesta, suunnittelusta…”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceHelsinki, FinlandHQ checked Sep 16, 20261-103 contacts →

Partial evidence

“We help our clients with green transitioning and we would be the perfect partner for your journey.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidencePorvoo, FinlandHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceMikkeli, FinlandHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

“Ekosaimaa on Mikkelissä perustettu yritys, joka palvelee koko maassa.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceHelsinki, FinlandHQ checked Sep 16, 20261-102 contacts →

Partial evidence

“We are a boutique consultancy and advisory company from Helsinki, Finland.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 52 energy transition consultants based in Finland

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Energy transition consultants based in Finland at a glance

As of Sep 16, 2026
55.1%Verified-email coverage
30.3Average contacts per company
1-10Median size (employees)
55.8%Largest-city concentration · Helsinki
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
36
11-50
10
51-200
4
201-500
1
10001+
1

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 52 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 energy transition 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 “energy transition 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 energy transition 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 energy transition 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, 868 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 16, 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.

Energy transition consultants by metro

  • Energy transition consultants in Helsinki29

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 energy transition 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 energy transition consultants are there based in Finland?

RevenueBase identified 52 energy transition 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 energy transition consultants?

Helsinki leads with 29 headquartered companies, followed by Oulu (4) and Tampere (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 868 verified decision-maker contacts tracked across these 52 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 16, 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.