Company lists · Data refreshed September 2026

Top 10 Environmental compliance auditors based in Poland

RevenueBase identified 36 environmental compliance auditors headquartered in Poland as of September 2026 and tracks 129 professional contacts across them, including 27 with verified work emails. Warszawa is the largest hub.

This list covers environmental compliance auditors headquartered in Poland, 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
36Companies
129Contacts tracked
27Verified emails
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The 10 largest environmental compliance auditors based in Poland

Ranked by team size
Top 10 of 36 environmental compliance auditors based in Poland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental compliance auditors: 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
1Partial evidenceWarsaw, PolandHQ checked Sep 19, 202611-5012 contacts →

Partial evidence

“Lion Environmental is an independent consulting company providing high-quality environmental, geological and EH & S services to business and industry.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceWarsaw, PolandHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

“EHS CONSULTING jest dostawcą usług doradczych w zakresie bezpieczeństwa i higieny pracy, ochrony przeciwpożarowej oraz ochrony środowiska.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceŁódź, PolandHQ checked Sep 19, 20261-109 contacts →

Indirect evidence

“At R2EKO, we prioritize delivering high-quality services at competitive prices.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceBielsko-biała, PolandHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

“Firma Ekologus sp.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceSuchy Las, PolandHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceOlkusz, PolandHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Oferujemy usługi doradcze, szkoleniowe i audytorskie z zakresu Systemów Zarządzania ISO dla firm, niezależnie od ich profilu działalności, wielkości czy obsługiwanej branży.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceKraków, PolandHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Oferujemy profesjonalne doradztwo w zakresie ochrony środowiska.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceWarszawa, PolandHQ checked Sep 19, 202651-2003 contacts →

Indirect evidence

“Ellipsis Energy to firma świadcząca usługi audytorskie w dziedzinie poprawy efektywności energetycznej.”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceWarsaw, PolandHQ checked Sep 19, 202611-502 contacts →

Partial evidence

“RSK Group is a leading integrated environmental, engineering and technical services business.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceSzczecin, PolandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026

Showing 10 of 36 environmental compliance auditors based in Poland

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Environmental compliance auditors based in Poland at a glance

As of Sep 19, 2026
20.9%Verified-email coverage
3.6Average contacts per company
1-10Median size (employees)
16.7%Largest-city concentration · Warszawa
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
9
51-200
3

Email recency for this list is measured worldwide rather than for Poland, so it is reported there. Company counts and contact totals on this page are exact for Poland, over 36 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 environmental compliance auditors, 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 Poland whose own description of what they do matches “environmental compliance auditors”. 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 environmental compliance auditors), 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 environmental compliance auditors, and records with no verified work email. Companies headquartered outside Poland 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, 27 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.

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 environmental compliance auditors, 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 environmental compliance auditors are there based in Poland?

RevenueBase identified 36 environmental compliance auditors headquartered in Poland 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?

Lion Environmental, headquartered in Warsaw, tops this list with the largest team on record.

Which city has the most environmental compliance auditors?

Warszawa leads with 6 headquartered companies, followed by Warsaw (3) and Lodz (2).

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 27 verified decision-maker contacts tracked across these 36 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.