Company lists · Data refreshed October 2026

Top 25 Environmental treatment engineering firms based in Poland

Name: Environmental treatment engineering firms based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 131 companies tracked

RevenueBase identified 131 company matches for environmental treatment engineering firms associated with Poland as of October 2026 and tracks 1,411 professional contacts across them, including 345 with verified work emails. Warsaw is the largest hub.

This list covers company matches for environmental treatment engineering firms associated with Poland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 12, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 12, 2026 How this list was built

131Companies

1,411Contacts tracked

345Verified emails

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The 25 largest environmental treatment engineering firms based in Poland

Ranked by team size

Top 25 of 131 company matches for environmental treatment engineering firms based in Poland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Eneris	Exact match	Warsaw, PolandHQ recorded Oct 12, 2026	1,001-5,000	241 contacts →
	Exact match “ENERIS to ogólnopolska firma działająca w obszarze ochrony środowiska.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Orlen Projekt S.A	Exact match	Płock, PolandHQ recorded Oct 12, 2026	201-500	99 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Antea Group Poland	Exact match	Katowice, PolandHQ recorded Oct 12, 2026	51-200	67 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, infrastructure, urban planning…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	REXER	Exact match	Wrocław, PolandHQ recorded Oct 12, 2026	11-50	30 contacts →
	Exact match “Spółka REXER powstała w 2014 roku we Wrocławiu.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Newater	Exact match	Gdańsk, PolandHQ recorded Oct 12, 2026	51-200	25 contacts →
	Exact match “Naszą specjalnością są modernizacje oczyszczalni ścieków, budowa nowych oczyszczalni ścieków, stacji uzdatniania wód, przepompowni ścieków komunalnych, deszczowych i…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Instytut OZE	Exact match	Kielce, PolandHQ recorded Oct 12, 2026	11-50	25 contacts →
	Exact match “Jeśli interesuje Cię inwestycja z obszaru gospodarki wodnej, przemysłu lub energetyki - dobrze trafiłeś!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Otto Engineering Polska Sp. Z O.O	Exact match	Gmina Trzebownisko, PolandHQ recorded Oct 12, 2026	11-50	20 contacts →
	Exact match “Oferta firmy OTTO Engineering Polska Sp.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Saur Polska	Exact match	Warsaw, PolandHQ recorded Oct 12, 2026	11-50	16 contacts →
	Exact match “Spółka SAUR Polska jest polską firmą inżynieryjno-usługową, stanowiącą filię francuskiej Grupy SAUR, prowadzącej działalność w dziedzinie ochrony środowiska, w szczególności…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Investeko S.A	Exact match	Świętochłowice, PolandHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Intereko Energia Sp. Z O.O	Exact match	Łódź, PolandHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “For many years, Intereko Energia has been providing specialized services in the management of post-production and industrial waste, striving to create a cleaner and better world.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	R2eko Artur Owczarek	Exact match	Łódź, PolandHQ recorded Oct 12, 2026	1-10	9 contacts →
	Exact match “At R2EKO, we prioritize delivering high-quality services at competitive prices.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Remondis Sp. Z O.O	Exact match	Warsaw, PolandHQ recorded Oct 12, 2026	1-10	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Proffico Sp. Z O.O	Exact match	Góra Kalwaria, PolandHQ recorded Oct 12, 2026	11-50	8 contacts →
	Exact match “Proffico Sp.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Energotechnika Engineering Sp. Z O.O	Exact match	Gliwice, PolandHQ recorded Oct 12, 2026	51-200	8 contacts →
	Exact match “Energotechnika Engineering Sp.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	ECO RGS Sp. Z O.O. Sp.K	Exact match	Rozalin, PolandHQ recorded Oct 12, 2026	1-10	7 contacts →
	Exact match “Firma Eco Rgs działa w branży ochrony środowiska od 2016 roku.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Ekologus Sp. Z O.O	Exact match	Bielsko-biała, PolandHQ recorded Oct 12, 2026	1-10	7 contacts →
	Exact match “Firma Ekologus sp.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Eko-Projekt	Exact match	Poznan, PolandHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “Firma EKO-PROJEKT świadczy kompleksowe usługi doradcze w zakresie ochrony środowiska.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Marex Technology Sp. Z O. O	Exact match	Drobin, PolandHQ recorded Oct 12, 2026	51-200	6 contacts →
	Exact match “Zajmujemy się budową, modernizacją i remontami oczyszczalni przemysłowych.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Wawatech Wastewater Technology	Exact match	Piaseczno, PolandHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “Tailor-made and state-of-the-art solutions will be defined and realised in close cooperation with our customers.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Ekostandard Pracownia Analiz Środowiskowych	Exact match	Suchy Las, PolandHQ recorded Oct 12, 2026	1-10	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Awas Serwis Sp. Z O.O	Exact match	Warsaw, PolandHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “Zatrudnimy Kierownika - Koordynatora Działu Serwisu - po więcej informacji proszę kliknąć na link pracuj.pl lub wejść na stronę: https://lnkd.in/gZdcpfT Firma AWAS-Serwis Sp.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	ZUK Sp. Z O. O	Exact match	Glincz, PolandHQ recorded Oct 12, 2026	11-50	5 contacts →
	Exact match “ZUK Sp.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Aktun SP Z O.O	Exact match	Gdańsk, PolandHQ recorded Oct 12, 2026	1-10	4 contacts →
	Exact match “Oferujemy rozwiązania technologiczne, które mają pozytywny wpływ na środowisko oraz na oszczędności Klientów, którzy dzięki oszczędnościom będą mogli je dalej inwestować-…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Prohabitat	Exact match	Kraków, PolandHQ recorded Oct 12, 2026	1-10	4 contacts →
	Exact match “PROHABITAT = POZWOLENIE NA SZYBSZE DZIAŁANIE Więcej projektowania zamiast siedzenia w urzędach Więcej kreacji zamiast biurokracji Więcej czasu zamiast stresu Zajmiemy się…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Ekolab	Exact match	Kobylnica, PolandHQ recorded Oct 12, 2026	11-50	3 contacts →
	Exact match “Ekolab Sp z o.o.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental treatment engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 131 environmental treatment engineering firms based in Poland

See the full list, filter by size, metro and specialty, and access 345 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental treatment engineering firms based in Poland at a glance

As of Oct 12, 2026

24.5%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

19.1%Largest-city concentration · Warsaw

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 131 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Poland whose business descriptions match “environmental treatment engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 345 professional contacts with verified work emails across the full matched dataset. 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 October 12, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental treatment engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental treatment engineering firms are there based in Poland?

RevenueBase identified 131 company matches for environmental treatment engineering firms associated with Poland as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Eneris tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most environmental treatment engineering firms?

Warsaw leads with 25 company records, followed by Gdansk (10) and Poznan (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 345 professional contacts with verified work emails tracked across these 131 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 12, 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 SmartSearch, 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.