Company lists · Data verified August 2026

Top 16 Environmental compliance consulting firms based in Poland

Name: Environmental compliance 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 62 companies tracked

There are 62 environmental compliance consulting firms headquartered in Poland (RevenueBase, August 2026). RevenueBase tracks 277 professional contacts across them, including 68 with verified work emails and 12 with mobile numbers. Warszawa is the largest hub.

This list covers environmental compliance 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.

62Companies

277Contacts tracked

68Verified emails

12Mobile numbers

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The 16 largest environmental compliance consulting firms based in Poland

Ranked by team size

Top 16 of 62 environmental compliance 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	H2 Compliance	Warsaw	11-50	56	32
2	Lion Environmental	Warsaw	11-50	12	5
3	R2eko Artur Owczarek	Lodz	1-10	9	5
4	Ekologus Sp. Z O.O	Bielsko-Biala	1-10	8	6
5	Maruszkin	Warsaw	1-10	7	4
6	Eko-Projekt	Poznan	11-50	6	4
7	Ecothesis	Wroclaw	11-50	6	1
8	Ekostandard Pracownia Analiz Środowiskowych	Suchy Las	1-10	5	2
9	Prohabitat	Krakow	1-10	4	1
10	Zero Waste Consulting Sp. Z O.O	Warszawa	11-50	3	1
11	Inżynieria PRO EKO Sp. Z O.O	Bielsko-Biala	11-50	3	1
12	4envi	Krakow	1-10	3	1
13	Biuro Rzeczoznawstwa I Ekonomii Środowiska Codex	Sroda Wielkopolska	1-10	2	2
14	RSK CEE	Warsaw	11-50	2	1
15	Chemlex Sp. Z O.O	Tarnow	1-10	2	1
16	Vita Arbor	Szczytno	1-10	1	1

Showing 16 of 62 environmental compliance consulting firms based in Poland

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Environmental compliance consulting firms based in Poland at a glance

As of Aug 28, 2026

1-10Median size (employees)

WarszawaLargest hub · 13 HQs

12Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Environmental compliance consulting firms by metro

Metro	Companies
Environmental compliance consulting firms in Warszawa	13
Environmental compliance consulting firms in Wroclaw	6
Environmental compliance consulting firms in Warsaw	5
Environmental compliance consulting firms in Poznan	4
Environmental compliance consulting firms in Krakow	4
Environmental compliance consulting firms in Bielsko-Biala	2
Environmental compliance consulting firms in Zielona Gora	2
Environmental compliance consulting firms in Lodz	2

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 “environmental compliance 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; 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 environmental compliance consulting firms are there based in Poland?

There are 62 environmental compliance consulting firms headquartered in Poland as of August 2026 (RevenueBase).

What is the largest company on this list?

H2 Compliance, headquartered in Warsaw, tops this list with the largest team on record.

Which city has the most environmental compliance consulting firms?

Warszawa leads with 13 headquartered companies, followed by Wroclaw (6) and Warsaw (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 68 verified decision-maker contacts tracked across these 62 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.