Company lists · Data refreshed September 2026

Top 25 Renewable energy consulting firms based in Finland

RevenueBase identified 58 renewable energy consulting firms headquartered in Finland as of September 2026 and tracks 729 professional contacts across them, including 402 with verified work emails and 28 with mobile numbers. Helsinki is the largest hub.

This list covers renewable energy consulting firms 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 5, 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 5, 2026 86% judged on-target in blind review
58Companies
729Contacts tracked
402Verified emails
28Mobile numbers
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The 25 largest renewable energy consulting firms based in Finland

Ranked by team size
Top 25 of 58 renewable energy consulting firms based in Finland, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy consulting firms: 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
1Partial evidenceHelsinki, FinlandHQ checked Sep 5, 2026201-500220 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
2Indirect evidencePorvoo, FinlandHQ checked Sep 5, 202651-20049 contacts →

Indirect evidence

“Insplan on kumppanisi vihreän siirtymän toteuttamisessa.”

Source: RevenueBase Database · checked Sep 5, 2026
3Partial evidenceEspoo, FinlandHQ checked Sep 5, 202611-5042 contacts →

Partial evidence

“Wega is an independent energy service company and specialises in bioenergy, industrial fuels, maritime and the environment.”

Source: RevenueBase Database · checked Sep 5, 2026
4Partial evidenceVaasa, FinlandHQ checked Sep 5, 202611-5035 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 5, 2026
5Strong evidencePori, FinlandHQ checked Sep 5, 202651-20021 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
6Partial evidenceOulu, FinlandHQ checked Sep 5, 202611-5020 contacts →

Partial 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 5, 2026
7Indirect evidenceHelsinki, FinlandHQ checked Sep 5, 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 5, 2026
8Partial evidenceOulu, FinlandHQ checked Sep 5, 202611-5019 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
9Partial evidenceOulu, FinlandHQ checked Sep 5, 20261-1015 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
10Partial evidencePori, FinlandHQ checked Sep 5, 202651-20015 contacts →

Partial evidence

“Cleaner energy in capable hands.”

Source: RevenueBase Database · checked Sep 5, 2026
11Strong evidenceHelsinki, FinlandHQ checked Sep 5, 202611-5013 contacts →

Strong 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 5, 2026
12Strong evidenceHelsinki, FinlandHQ checked Sep 5, 202651-20010 contacts →

Strong evidence

“Sustera Energy Consulting Oy on osa Sustera Groupia.”

Source: RevenueBase Database · checked Sep 5, 2026
13Partial evidenceHelsinki, FinlandHQ checked Sep 5, 202611-509 contacts →

Partial evidence

“Autamme tekemään järkevimmät energiaremontit, niin että kiinteistön kustannukset pysyvät kurissa ja energialuokka saadaan vähintään vaadittuun D-luokkaan.”

Source: RevenueBase Database · checked Sep 5, 2026
14Strong evidenceEspoo, FinlandHQ checked Sep 5, 20261-108 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
15Partial evidenceHelsinki, FinlandHQ checked Sep 5, 20261-108 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
16Partial evidenceHelsinki, FinlandHQ checked Sep 5, 20261-107 contacts →

Partial evidence

“Will & Must is a Helsinki-based developer of energy and infrastructure projects, founded in 2022.”

Source: RevenueBase Database · checked Sep 5, 2026
17Indirect evidenceHelsinki, FinlandHQ checked Sep 5, 202611-506 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
18Strong evidenceJyväskylä, FinlandHQ checked Sep 5, 20261-106 contacts →

Strong evidence

“WestWind build up renewable Energy Site Projects.”

Source: RevenueBase Database · checked Sep 5, 2026
19Partial evidenceOulu, FinlandHQ checked Sep 5, 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 5, 2026
20Partial evidenceHelsinki, FinlandHQ checked Sep 5, 20261-104 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
21Partial evidenceFinlandHQ checked Sep 5, 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 5, 2026
22Strong evidenceVantaa, FinlandHQ checked Sep 5, 20261-103 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 5, 2026
23Partial evidenceJyvaskyla, FinlandHQ checked Sep 5, 20261-103 contacts →

Partial evidence

“CO2Esto Ltd is an expert company which is serving companies, communities and individuals to seek cost-efficient solutions to combat climate and energy challenges.”

Source: RevenueBase Database · checked Sep 5, 2026
24Partial evidenceHelsinki, FinlandHQ checked Sep 5, 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 5, 2026
25Indirect evidenceMikkeli, FinlandHQ checked Sep 5, 20261-102 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 5, 2026

Showing 25 of 58 renewable energy consulting firms based in Finland

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Renewable energy consulting firms based in Finland at a glance

As of Sep 5, 2026
55.1%Verified-email coverage
3.8%Mobile-number coverage
12.6Average contacts per company
1-10Median size (employees)
34.5%Largest-city concentration · Helsinki
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
13
51-200
5
201-500
2

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 consulting firms, 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 consulting firms”. 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 consulting firms), 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 consulting firms, 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, 402 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 5, 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 consulting firms, 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 consulting firms are there based in Finland?

RevenueBase identified 58 renewable energy consulting firms 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?

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

Which city has the most renewable energy consulting firms?

Helsinki leads with 20 headquartered companies, followed by Oulu (5) and Espoo (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 402 verified decision-maker contacts tracked across these 58 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 5, 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.