Company lists · Data refreshed September 2026

Top 20 Wastewater treatment system construction companies based in Poland

Name: Wastewater treatment system construction companies based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 142 companies tracked

RevenueBase identified 142 company matches for wastewater treatment system construction companies associated with Poland as of September 2026 and tracks 1,204 professional contacts across them, including 179 with verified work emails. Warsaw is the largest hub.

This list covers company matches for wastewater treatment system construction companies 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 September 19, 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 Sep 19, 2026 How this list was built

142Companies

1,204Contacts tracked

179Verified emails

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The 20 largest wastewater treatment system construction companies based in Poland

Ranked by team size

Top 20 of 142 company matches for wastewater treatment system construction companies based in Poland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	Ecol-Unicon Sp. Z O.O	Exact match	Gdańsk, PolandHQ recorded Sep 19, 2026	201-500	110 contacts →
	Exact match “We are a leading Polish manufacturer of water protection devices - concrete tanks, separators, settling tanks, sewage treatment plants, pumping products and sewage compressor…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Esmil Group	Exact match	Ełk, PolandHQ recorded Sep 19, 2026	201-500	46 contacts →
	Exact match “ESMIL Group is a leading global manufacturer of equipment for wastewater treatment and sludge dewatering, as well as a provider of advanced membrane systems for a wide range of…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Instal Warszawa S.A	Exact match	Warsaw, PolandHQ recorded Sep 19, 2026	51-200	34 contacts →
	Exact match “Jesteśmy jedną z większych i najdłużej istniejących firm budowlano-instalacyjnych w Polsce.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Newater	Exact match	Gdańsk, PolandHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
5	Instalcompact	Exact match	Tarnowo Podgórne, PolandHQ recorded Sep 19, 2026	51-200	23 contacts →
	Exact match “Instalcompact -to grupa spółek, które zajmują się kompleksowo obsługą projektów technicznych w branży wodno-kanalizacyjnej, produkcyjnej oraz przemyśle.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Saur Polska	Exact match	Warsaw, PolandHQ recorded Sep 19, 2026	11-50	14 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 · Sep 19, 2026 · View company records in RevenueBase
7	Symbiona	Exact match	Warsaw, PolandHQ recorded Sep 19, 2026	11-50	12 contacts →
	Exact match “SYMBIONA is a leading provider of advanced water reuse and resource recovery solutions, serving industries and municipalities across Europe, EMEA, and Southeast Asia.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	SPS Inscon Sp. Z O.O	Exact match	Sobin, PolandHQ recorded Sep 19, 2026	51-200	9 contacts →
	Exact match “SPS INSCON sp.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Proffico Sp. Z O.O	Exact match	Góra Kalwaria, PolandHQ recorded Sep 19, 2026	11-50	8 contacts →
	Exact match “Proffico Sp.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Firma Bartosz Sp.J. Bujwicki, Sobiech	Exact match	Białystok, PolandHQ recorded Sep 19, 2026	51-200	8 contacts →
	Exact match “Od ponad 30 lat dostarczamy urządzenia i kompleksowe systemy z branży sanitarnej wykorzystywane na inwestycjach prywatnych i miejskich.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Stalbudom Sp. Z O.O	Exact match	Warsaw, PolandHQ recorded Sep 19, 2026	51-200	6 contacts →
	Exact match “STALBUDOM Sp.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Wawatech Wastewater Technology	Exact match	Piaseczno, PolandHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
13	ZUK Sp. Z O. O	Exact match	Glincz, PolandHQ recorded Sep 19, 2026	11-50	6 contacts →
	Exact match “ZUK Sp.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Awas Serwis Sp. Z O.O	Exact match	Warsaw, PolandHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
15	Aktun SP Z O.O	Exact match	Gdańsk, PolandHQ recorded Sep 19, 2026	1-10	5 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 · Sep 19, 2026 · View company records in RevenueBase
16	Marex Technology Sp. Z O. O	Exact match	Drobin, PolandHQ recorded Sep 19, 2026	51-200	4 contacts →
	Exact match “Zajmujemy się budową, modernizacją i remontami oczyszczalni przemysłowych.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Formela	Exact match	Śródmieście, PolandHQ recorded Sep 19, 2026	11-50	2 contacts →
	Exact match “Formela Grupa Inżynieryjna - skupia się na realizacji projektów z zakresu infrastruktury wodno-kanalizacyjnej.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Biopro Sp. Z O.O	Exact match	Gdansk, PolandHQ recorded Sep 19, 2026	11-50	1 contacts →
	Exact match “Jesteśmy ekspertami w zakresie oczyszczania ścieków oraz neutralizacji odorów i substancji toksycznych.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Pinnacle Sp. Z O.O	Exact match	Mierzyn, PolandHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Realizujemy zaawansowane projekty instalacji oczyszczania ścieków przemysłowych * Flekso; Kuchnia kleju; Druk cyfrowy UV LED; Offset * Eliminujemy ryzyka przekroczeń granicznych…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Instal Warszawa SA	Exact match	Warsaw, PolandHQ recorded Sep 19, 2026	n/a	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 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 “wastewater treatment system construction companies”. 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 20 of 142 wastewater treatment system construction companies based in Poland

See the full list, filter by size, metro and specialty, and access 179 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater treatment system construction companies based in Poland at a glance

As of Sep 19, 2026

14.9%Verified-email coverage

8.5Average contacts per company

11-50Median size (employees)

14.1%Largest-city concentration · Warsaw

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 142 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 “wastewater treatment system construction companies” 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 179 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 September 19, 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 “wastewater treatment system construction companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater treatment system construction companies are there based in Poland?

RevenueBase identified 142 company matches for wastewater treatment system construction companies associated with Poland as of September 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?

Ecol-Unicon Sp. Z O.O tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wastewater treatment system construction companies?

Warsaw leads with 20 company records, followed by Gdansk (8) and Krakow (6).

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 179 professional contacts with verified work emails tracked across these 142 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 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 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.