Company lists · Data refreshed September 2026
Top 25 Green energy consulting firms based in Finland
RevenueBase identified 80 green energy consulting firms headquartered in Finland as of September 2026 and tracks 455 professional contacts across them, including 225 with verified work emails and 30 with mobile numbers. Helsinki is the largest hub.
This list covers green 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, how directly it supports the match, and when it was last checked. Data refreshed September 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.
The 25 largest green energy consulting firms based in Finland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 38 | ||||
“Gaia Consulting Oy is a consultancy for sustainable business.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 35 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 25 | ||||
“Kaskas is a growing consultancy specialized in sustainability.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 25 | ||||
“Lemkem is the leading turnkey sustainable energy solutions provider in Finland.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 23 | ||||
“Arenso – Arctic Energy Solutions – provides cutting-edge expertise in sustainable and impactful renewable energy.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 19 | ||||
“Olemme kotimainen toimija ja kokenut aurinkoenergian asiantuntija.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 19 | ||||
“Forus is a novel finance and sales company that develops services to stop climate-change profitably.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 17 | ||||
“Planera on korjausrakentamisen palveluihin erikoistunut konsulttitoimisto, jolle asiakas on kaiken toiminnan ytimessä.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 | ||||
“Mikko Ahokas Consulting Oy (macon) is technology focused consulting company in the field of Bioeconomy and Cleantech.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 | ||||
“How to get the most out of corporate responsibility?” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 | ||||
“Sustera Energy Consulting Oy on osa Sustera Groupia.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 | ||||
“Autamme tekemään järkevimmät energiaremontit, niin että kiinteistön kustannukset pysyvät kurissa ja energialuokka saadaan vähintään vaadittuun D-luokkaan.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 | ||||
“Novox is an engineering consulting company specialiced in clean energy and in energy economics.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | Insinööritoimisto Vesitaito OYPartial evidence | 8 | |||
“Etsitkö rakennushankkeellesi suunnittelukumppania energiatodistuksen laatimisen tai elinkaaren hiilijalanjälkilaskennan pariin?” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 | ||||
“Maankäytön, luvituksen ja strategisen suunnittelun asiantuntija- sekä projektinjohtopalveluja Energiamurros & teollisuus Sosiaalinen kestävyys Matkailualueet Henkilökohtaista…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 | ||||
“Flexens is a consultancy and a project development company.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 | ||||
“Termode on luotettava ja palveleva kumppani, joka auttaa asiakkaitaan energiasektorin haasteissa tarjoamalla erilaisia asiantuntija- ja modernisointipalveluita puhtaampaan…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | WindlyIndirect evidence | 5 | |||
“We at WINDLY are your partner in achieving CO2 targets and improving electricity cost predictability.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 | ||||
“Energiatehokkuuden parantaminen Useimmissa rakennuksissa voidaan energiatehokkuutta parantaa edullisilla teknisillä ratkaisuilla.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 | ||||
“DGE Finland is a consultancy for environmental sustainability.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 | ||||
“Our value proposition is to assist real estate owners to make better return on their assets.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 | ||||
“Finngroup Consultants specializes in sustainability and resilience of the built environment.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 | ||||
“We help our clients with green transitioning and we would be the perfect partner for your journey.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 80 green energy consulting firms based in Finland
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Green energy consulting firms based in Finland at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
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 green energy consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Finland whose own description of what they do matches “green energy consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among green 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 an evidence 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, 225 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 3, 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.
Green energy consulting firms by metro
- Green energy consulting firms in Helsinki35
Frequently asked
How many green energy consulting firms are there based in Finland?
RevenueBase identified 80 green 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?
Gaia Consulting, headquartered in Turku, tops this list with the largest team on record.
Which city has the most green energy consulting firms?
Helsinki leads with 35 headquartered companies, followed by Espoo (8) and Tampere (7).
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 225 verified decision-maker contacts tracked across these 80 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 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.
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