Company lists · Data verified August 2026

Top 25 Clean energy consultancy companies based in Poland

Name: Clean energy consultancy companies based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 441 companies tracked

There are 441 clean energy consultancy companies headquartered in Poland (RevenueBase, August 2026). RevenueBase tracks 3,016 professional contacts across them, including 690 with verified work emails and 49 with mobile numbers. Warszawa is the largest hub.

This list covers clean energy consultancy companies headquartered in Poland, 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.

441Companies

3,016Contacts tracked

690Verified emails

49Mobile numbers

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The 25 largest clean energy consultancy companies based in Poland

Ranked by team size

Top 25 of 441 clean energy consultancy companies based in Poland, 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	Hymon Powered By Kajima	Tarnow	201-500	111	34
2	PMCG	Warsaw	51-200	94	4
3	Ekovoltis	Mokotow	51-200	91	40
4	JWA	Krakow	51-200	71	46
5	Easyeko	Lodz	51-200	69	24
6	BOPRO	Warsaw	51-200	65	26
7	Lafrentz Group	Poznan	201-500	61	12
8	Enervigo	Tarnow	51-200	57	23
9	DGE Sp. Z O.O	Katowice	51-200	54	38
10	VOSTI	Lublin	51-200	53	13
11	Sunday Polska	Warsaw	501-1,000	50	5
12	Tyrens Polska Sp. Z O.O	Krakow	51-200	49	26
13	Luneos	Gdansk	51-200	38	26
14	flexipowergroup.pl	Lodz	201-500	33	6
15	E.On Foton	n/a	51-200	30	11
16	Energoinżynieria Sp. Z O.O	Krakow	51-200	29	7
17	Solarspot SA	Poznan	51-200	29	5
18	Elmont Grupa	Lyski	51-200	24	8
19	Energomix S.A	Warszawa	51-200	21	2
20	Sm-Project Sp. Z O.O	Glogow Malopolski	51-200	17	5
21	Doradcy Energetyczni Sp. Z O.O	Ursynow	51-200	17	1
22	Naster S.A	Katowice	51-200	13	9
23	Energotechnika Engineering Sp. Z O.O	Gliwice	51-200	9	1
24	Inergis S.A	Czestochowa	51-200	7	3
25	Grüne Energie U.G	Warszawa	51-200	6	1

Showing 25 of 441 clean energy consultancy companies based in Poland

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Clean energy consultancy companies based in Poland at a glance

As of Aug 28, 2026

11-50Median size (employees)

WarszawaLargest hub · 65 HQs

49Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

207

11-50

165

51-200

201-500

501-1,000

Clean energy consultancy companies by metro

Metro	Companies
Clean energy consultancy companies in Warszawa	65
Clean energy consultancy companies in Warsaw	41
Clean energy consultancy companies in Poznan	28
Clean energy consultancy companies in Krakow	25
Clean energy consultancy companies in Wroclaw	22
Clean energy consultancy companies in Gdansk	17
Clean energy consultancy companies in Czestochowa	14

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 “clean energy consultancy companies”, with match quality audited by blind human judging, and headquartered in Poland.
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; 2 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 clean energy consultancy companies are there based in Poland?

There are 441 clean energy consultancy companies headquartered in Poland as of August 2026 (RevenueBase).

What is the largest company on this list?

Hymon Powered By Kajima, headquartered in Tarnow, tops this list with the largest team on record.

Which city has the most clean energy consultancy companies?

Warszawa leads with 65 headquartered companies, followed by Warsaw (41) and Poznan (28).

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 690 verified decision-maker contacts tracked across these 441 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.