Company lists · Data verified August 2026

Top 25 Energy consulting firms based in Finland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 90 companies tracked

There are 90 energy consulting firms headquartered in Finland (RevenueBase, August 2026). RevenueBase tracks 695 professional contacts across them, including 396 with verified work emails and 41 with mobile numbers. Helsinki is the largest hub.

This list covers 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. Data current as of August 28, 2026.

90Companies

695Contacts tracked

396Verified emails

41Mobile numbers

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The 25 largest energy consulting firms based in Finland

Ranked by team size

Top 25 of 90 energy consulting firms based in Finland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Rakennuttajatoimisto HTJ OY	Vantaa	201-500	152	112
2	WEGA	Espoo	11-50	44	25
3	Veni Energia OY	Tampere	51-200	40	33
4	Gaia Consulting	Turku	51-200	38	3
5	Sitema OY	Oulu	11-50	36	27
6	Planora OY	Porvoo	11-50	20	14
7	Forus OY	Helsinki	11-50	19	12
8	CFE Finland OY	Vantaa	11-50	19	12
9	Fimpec PMO OY	Jyvaskyla	11-50	18	11
10	Planera	Helsinki	11-50	17	16
11	Macon OY	Oulu	1-10	14	10
12	Finess Energy OY	Turku	11-50	13	8
13	Greenstream Network LTD	Helsinki	11-50	13	6
14	Talotohtori 2.0 Enermix OY	Tampere	11-50	13	4
15	Naava Partners OY	Helsinki	1-10	10	8
16	Sustera Energy Consulting OY	Tampere	51-200	10	6
17	Feasib	Nivala	1-10	9	7
18	Planius	Helsinki	11-50	9	6
19	Energiaykkönen OY	Jyvaskyla	11-50	9	3
20	Novox OY	Espoo	1-10	8	7
21	Insinööritoimisto Vesitaito OY	Tampere	11-50	8	6
22	Ewatt Smart Power Systems OY	Jyvaskyla	1-10	8	5
23	Insinööritoimisto Stacon OY	Helsinki	11-50	7	7
24	Ekanalys AB	Helsinki	1-10	6	4
25	Termode OY	Oulu	1-10	5	5

Showing 25 of 90 energy consulting firms based in Finland

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Energy consulting firms based in Finland at a glance

As of Aug 28, 2026

1-10Median size (employees)

HelsinkiLargest hub · 25 HQs

41Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Energy consulting firms by metro

Metro	Companies
Energy consulting firms in Helsinki	25
Energy consulting firms in Tampere	9
Energy consulting firms in Jyvaskyla	8
Energy consulting firms in Vantaa	6
Energy consulting firms in Espoo	5
Energy consulting firms in Turku	4
Energy consulting firms in Oulu	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “energy consulting firms”, with match quality audited by blind human judging, and headquartered in Finland.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many energy consulting firms are there based in Finland?

There are 90 energy consulting firms headquartered in Finland as of August 2026 (RevenueBase).

What is the largest company on this list?

Rakennuttajatoimisto HTJ OY, headquartered in Vantaa, tops this list with the largest team on record.

Which city has the most energy consulting firms?

Helsinki leads with 25 headquartered companies, followed by Tampere (9) and Jyvaskyla (8).

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 396 verified decision-maker contacts tracked across these 90 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 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.