Company lists · Data refreshed September 2026

Top 25 City sustainability consultants based in Finland

RevenueBase identified 72 city sustainability consultants headquartered in Finland as of September 2026 and tracks 1,397 professional contacts across them, including 664 with verified work emails. Helsinki is the largest hub.

This list covers city sustainability 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 19, 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 19, 2026 86% judged on-target in blind review
72Companies
1,397Contacts tracked
664Verified emails
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The 25 largest city sustainability consultants based in Finland

Ranked by team size
Top 25 of 72 city sustainability consultants based in Finland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to city sustainability 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
1Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 2026201-500393 contacts →

Indirect evidence

“Olemme kuntien, yritysten ja yhteisöjen kumppani monialaisessa yhdyskuntasuunnittelussa, osaamisen kehittämisessä ja hyvän hallinnon edistämisessä.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 2026201-500220 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceEspoo, FinlandHQ checked Sep 19, 2026501-1,000165 contacts →

Indirect evidence

“Dovre is the name of the most famous mountains in Norway and represents an everlasting solid foundation.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 202651-20080 contacts →

Indirect evidence

“RAPP Oy on yksi Suomen vanhimmista rakennuttajatoimistoista, jolla on rohkeutta toteuttaa rakennuttamisen ja työmaavalvonnan palvelut astetta paremmin.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceEspoo, FinlandHQ checked Sep 19, 2026n/a74 contacts →

Indirect evidence

“Vahanen-yhtiöt on nyt osa AFRYä.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 202651-20048 contacts →

Indirect evidence

“ONE Architects is formed from the alignment of three successful studios AW2 Architects, B&M Architects and Konkret.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 202651-20043 contacts →

Indirect evidence

“Indufor is a global leader in natural resource management, investment advisory, and strategic industrial development consulting.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceHelsinki, FinlandHQ checked Sep 19, 202651-20039 contacts →

Partial evidence

“Finnish Overseas Consultants (FinnOC) Ltd.”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceHelsinki, FinlandHQ checked Sep 19, 202651-20038 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceFinlandHQ checked Sep 19, 202611-5037 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
11Strong evidenceHelsinki, FinlandHQ checked Sep 19, 202611-5026 contacts →

Strong evidence

“Kaskas is a growing consultancy specialized in sustainability.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceTurku, FinlandHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

“Valonia on Varsinais-Suomen kuntien yhteinen kestävän kehityksen asiantuntijaorganisaatio, jonka ydinosaamista ovat ympäristö- ja energia-asiat sekä kestävä kehitys.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 2026201-50017 contacts →

Indirect evidence

“Hei me muutetaan: Optiplan saa uuden kodin 1.6.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 202611-5015 contacts →

Indirect evidence

“We are a planning and design studio specialised in socially and ecologically sustainable solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceOulu, FinlandHQ checked Sep 19, 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 19, 2026
16Strong evidenceHelsinki, FinlandHQ checked Sep 19, 20261-1013 contacts →

Strong evidence

“helsinkizurich is an internationally operating architecture and city planning consultancy.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 20261-1010 contacts →

Indirect evidence

“How to get the most out of corporate responsibility?”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceEspoo, FinlandHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
20Strong evidenceHelsinki, FinlandHQ checked Sep 19, 20261-107 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceTampere, FinlandHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Architecture, Urban planning and Design”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“We are an organization and a platform that focuses on the ideas needed for sustainable life in built environments.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceTampere, FinlandHQ checked Sep 19, 20261-103 contacts →

Partial evidence

“We develop sustainability ideas and implement innovative solutions for urban environment.”

Source: RevenueBase Database · checked Sep 19, 2026
24Strong evidenceHelsinki, FinlandHQ checked Sep 19, 20261-103 contacts →

Strong evidence

“DGE Finland is a consultancy for environmental sustainability.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceHelsinki, FinlandHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Sfääri on 2020-luvun kaupunkikehittäjä.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 72 city sustainability consultants based in Finland

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City sustainability consultants based in Finland at a glance

As of Sep 19, 2026
47.5%Verified-email coverage
19.4Average contacts per company
1-10Median size (employees)
52.8%Largest-city concentration · Helsinki
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
9
51-200
5
201-500
3
501-1,000
1
10001+
4

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 72 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 city sustainability 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 “city sustainability 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 city sustainability 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 city sustainability 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, 664 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 19, 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.

City sustainability consultants by metro

  • City sustainability consultants in Helsinki38

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 city sustainability 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 city sustainability consultants are there based in Finland?

RevenueBase identified 72 city sustainability 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?

FCG Finnish Consulting Group, headquartered in Helsinki, tops this list with the largest team on record.

Which city has the most city sustainability consultants?

Helsinki leads with 38 headquartered companies, followed by Espoo (12) and Tampere (5).

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 664 verified decision-maker contacts tracked across these 72 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 19, 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.