Company lists · Data verified August 2026

Top 25 Clean energy consulting firms based in Poland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 355 companies tracked

There are 355 clean energy consulting firms headquartered in Poland (RevenueBase, August 2026). RevenueBase tracks 2,201 professional contacts across them, including 528 with verified work emails and 37 with mobile numbers. Warszawa is the largest hub.

This list covers clean energy consulting firms 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.

355Companies

2,201Contacts tracked

528Verified emails

37Mobile numbers

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The 25 largest clean energy consulting firms based in Poland

Ranked by team size

Top 25 of 355 clean energy consulting firms 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	Jumbo Consulting Group, Part Of Turner & Townsend	Warsaw	51-200	127	48
2	Hymon Powered By Kajima	Tarnow	201-500	111	34
3	JWA	Krakow	51-200	71	46
4	BOPRO	Warsaw	51-200	65	26
5	Lafrentz Group	Poznan	201-500	61	12
6	Enervigo	Tarnow	51-200	57	23
7	DGE Sp. Z O.O	Katowice	51-200	54	38
8	Enetecs	Krakow	11-50	43	29
9	flexipowergroup.pl	Lodz	201-500	33	6
10	Energoinżynieria Sp. Z O.O	Krakow	51-200	29	7
11	Solarspot SA	Poznan	51-200	29	5
12	Elmont Grupa	Lyski	51-200	24	8
13	Norgtech International	Poznan	11-50	22	5
14	Energomix S.A	Warszawa	51-200	21	2
15	Viverno	Warsaw	11-50	20	11
16	Tundra Advisory	Gdansk	11-50	18	8
17	Sm-Project Sp. Z O.O	Glogow Malopolski	51-200	17	5
18	Doradcy Energetyczni Sp. Z O.O	Ursynow	51-200	17	1
19	IDE Projekt	Torun	11-50	14	11
20	EMI Energy Sp. Z O.O	Torun	11-50	13	10
21	Naster S.A	Katowice	51-200	13	9
22	Urbanconsulting Filip Sokołowski	Gdynia	11-50	12	3
23	Horizons Sp. Z O.O	Warsaw	11-50	11	8
24	Electrum Solutions	Bialystok	11-50	11	8
25	Metropolis Doradztwo Gospodarcze Sp. Z O.O	Poznan	11-50	10	8

Showing 25 of 355 clean energy consulting firms based in Poland

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Clean energy consulting firms based in Poland at a glance

As of Aug 28, 2026

11-50Median size (employees)

WarszawaLargest hub · 57 HQs

37Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

175

11-50

128

51-200

201-500

Clean energy consulting firms by metro

Metro	Companies
Clean energy consulting firms in Warszawa	57
Clean energy consulting firms in Warsaw	38
Clean energy consulting firms in Poznan	31
Clean energy consulting firms in Wroclaw	21
Clean energy consulting firms in Krakow	16
Clean energy consulting firms in Gdansk	14
Clean energy consulting firms in Gdynia	11

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 consulting firms”, 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 consulting firms are there based in Poland?

There are 355 clean energy consulting firms headquartered in Poland as of August 2026 (RevenueBase).

What is the largest company on this list?

Jumbo Consulting Group, Part Of Turner & Townsend, headquartered in Warsaw, tops this list with the largest team on record.

Which city has the most clean energy consulting firms?

Warszawa leads with 57 headquartered companies, followed by Warsaw (38) and Poznan (31).

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 528 verified decision-maker contacts tracked across these 355 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.