Company lists · Data refreshed August 2026

Top 25 Carbon accounting firms based in Finland

Name: Carbon accounting firms based in Finland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 45 companies tracked

There are 45 carbon accounting firms headquartered in Finland (RevenueBase, August 2026). RevenueBase tracks 310 professional contacts across them, including 168 with verified work emails and 24 with mobile numbers. Helsinki is the largest hub.

This list covers carbon accounting 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 August 31, 2026.

45Companies

310Contacts tracked

168Verified emails

24Mobile numbers

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The 25 largest carbon accounting firms based in Finland

Ranked by team size

Top 25 of 45 carbon accounting firms based in Finland, ranked by team size, largest first. Data refreshed Aug 31, 2026. Evidence rates how directly each company's own description names carbon accounting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	Ecobio OYIndirect evidence “Ecobio helps companies succeed in the green transition by combining expert consulting and smart digital solutions.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	51-200	60	41
2	Gaia ConsultingIndirect evidence “Gaia Consulting Oy is a consultancy for sustainable business.” Source: company website · checked Aug 31, 2026	Turku, Finland	51-200	38	3
3	LeasegreenIndirect evidence “LeaseGreen on suurten kiinteistöjen energiatalouden parantaja ja ilmastotekojen moottori.” Source: company website · checked Aug 31, 2026	Tampere, Finland	11-50	34	27
4	KaskasIndirect evidence “Kaskas is a growing consultancy specialized in sustainability.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	11-50	25	17
5	Reforest Finland OYIndirect evidence “Reforest tarjoaa selkeät ratkaisut yrityksesi vastuullisuuteen.” Source: company website · checked Aug 31, 2026	Tampere, Finland	1-10	11	8
6	Useless Company OYPartial evidence “Science-based carbon footprint calculation and environmental impact assessment with the expertise of a research group.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	11	6
7	TaigawiseIndirect evidence “How to get the most out of corporate responsibility?” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	10	7
8	Openco2net OYIndirect evidence “OpenCO2net on hiilijalanjäljen mittaamiseen sekä ilmastoystävällisen liiketoiminnan kehittämiseen keskittynyt palveluyritys.” Source: company website · checked Aug 31, 2026	Espoo, Finland	1-10	9	8
9	D-MatPartial evidence “D-mat is a sustainability-focused expert company founded in 2004, dedicated to promoting a low-carbon and resource-smart way of living and doing business – all within the limits…” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	9	1
10	Ceriffi OYIndirect evidence “Ceriffi Oy on ohjelmisto- ja asiantuntijayritys.” Source: company website · checked Aug 31, 2026	Jyvaskyla, Finland	1-10	8	8
11	Insinööritoimisto Vesitaito OYIndirect evidence “Etsitkö rakennushankkeellesi suunnittelukumppania energiatodistuksen laatimisen tai elinkaaren hiilijalanjälkilaskennan pariin?” Source: company website · checked Aug 31, 2026	Tampere, Finland	11-50	8	6
12	Tyrsky ConsultingIndirect evidence “Tyrsky is a Finnish consultancy specialised in climate and sustainability issues.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	7	6
13	MastosIndirect evidence “Muuta vastuullisuus kilpailueduksi datapohjaisella johtamisella ja viestinnällä.” Source: company website · checked Aug 31, 2026	Jyvaskyla, Finland	1-10	7	4
14	NGS Finland OYIndirect evidence “Ilmastonmuutoksen aiheuttama huoli tulevaisuudesta kasvaa jatkuvasti.” Source: company website · checked Aug 31, 2026	Finland	1-10	6	4
15	Nordic Impact OYIndirect evidence “Nordic Impact is a leading expert company in climate responsibility founded in 2008.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	6	2
16	Fitcomm OYIndirect evidence “FitComm Oy is a consultancy specialized in sustainability, corporate responsibility and communications.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	6	1
17	Hyötykeräys OYIndirect evidence “Hyötykeräys yhdessä tytäryhtiö Hyötypaalauksen kanssa ovat kiertalousalan kasvuyrityksiä.” Source: company website · checked Aug 31, 2026	Nokia, Finland	11-50	4	2
18	Co2estoIndirect 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: company website · checked Aug 31, 2026	Jyvaskyla, Finland	1-10	3	3
19	DGE FinlandIndirect evidence “DGE Finland is a consultancy for environmental sustainability.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	3	3
20	Energy Plus Engineering OYIndirect evidence “Our value proposition is to assist real estate owners to make better return on their assets.” Source: company website · checked Aug 31, 2026	Lappeenranta, Finland	1-10	3	2
21	Crnet OYIndirect evidence “CRnet palveluyrityksenä keskittyy puhtaasti vastuullisen liiketoiminnan kehittämiseen.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	3	1
22	BetteraIndirect evidence “We help boost your sustainability actions by making noise of them!” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	2	2
23	Rodinia Communication & ConsultingIndirect evidence “Rodinia - Communications On Sustainable Grounds.” Source: company website · checked Aug 31, 2026	Espoo, Finland	1-10	2	1
24	Habitania InstituteIndirect evidence “Habitania Institute, a sustainability consultancy in Helsinki, supports founders like you who want to build meaningful, future-fit businesses.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	1	1
25	Enne Consulting OYIndirect evidence “Enne Consulting Oy is a consulting agency specialized in corporate sustainability and communications.” Source: company website · checked Aug 31, 2026	Helsinki, Finland	1-10	1	1

Showing 25 of 45 carbon accounting firms based in Finland

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Carbon accounting firms based in Finland at a glance

As of Aug 31, 2026

1-10Median size (employees)

HelsinkiLargest hub · 24 HQs

24Contacts with mobile numbers

Aug 31, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

Carbon accounting firms by metro

Metro	Companies
Carbon accounting firms in Helsinki	24
Carbon accounting firms in Espoo	6
Carbon accounting firms in Tampere	3
Carbon accounting firms in Jyvaskyla	3
Carbon accounting firms in Hameenlinna	1
Carbon accounting firms in Turku	1
Carbon accounting firms in Lappeenranta	1

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 carbon accounting 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: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in Finland whose own description of what they do matches “carbon accounting 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 carbon accounting 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.
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, 168 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 August 31, 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

How many carbon accounting firms are there based in Finland?

There are 45 carbon accounting firms headquartered in Finland as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most carbon accounting firms?

Helsinki leads with 24 headquartered companies, followed by Espoo (6) 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 168 verified decision-maker contacts tracked across these 45 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.