Company lists · Data refreshed September 2026

Top 25 Municipal wastewater treatment contractors based in Italy

Name: Municipal wastewater treatment contractors based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 291 companies tracked

RevenueBase identified 291 company matches for municipal wastewater treatment contractors associated with Italy as of September 2026 and tracks 2,966 professional contacts across them, including 824 with verified work emails. Milan is the largest hub.

This list covers company matches for municipal wastewater treatment contractors associated with Italy, 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 17, 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 17, 2026 How this list was built

291Companies

2,966Contacts tracked

824Verified emails

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The 25 largest municipal wastewater treatment contractors based in Italy

Ranked by team size

Top 25 of 291 company matches for municipal wastewater treatment contractors based in Italy, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Fisia Italimpianti	Exact match	Genoa, ItalyHQ recorded Sep 17, 2026	51-200	362 contacts →
	Exact match “Fisia Italimpianti S.p.A, part of Webuild Group (the new group born in 2020 from Salini Impregilo), is a worldwide leader in the sustainable design and execution of water…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	RDR S.P.A. Società Benefit	Exact match	Torre Del Greco, ItalyHQ recorded Sep 17, 2026	201-500	109 contacts →
	Exact match “RDR S.p.A.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	S.T.A. Società Trattamento Acque SPA	Exact match	Mantova, ItalyHQ recorded Sep 17, 2026	51-200	91 contacts →
	Exact match “STA aiuta le Società di Gestione del Servizio Idrico e le Piccole, Medie e Grandi Industrie a progettare, costruire e gestire impianti di trattamento delle acque reflue, primarie…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Viacqua	Exact match	Vicenza, ItalyHQ recorded Sep 17, 2026	201-500	90 contacts →
	Exact match “Viacqua è una società per azioni a capitale totalmente pubblico.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Sodai S.P.A	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	51-200	74 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Hysytech S.R.L	Exact match	Orbassano, ItalyHQ recorded Sep 17, 2026	51-200	64 contacts →
	Exact match “Hysytech is an engineering and process equipment construction company established on 2003, in Turin, Italy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Tm.E. S.P.A.	Exact match	La Spezia, ItalyHQ recorded Sep 17, 2026	201-500	60 contacts →
	Exact match “Design, project management, supply, construction, commissioning and service of complete facilities, or their parts, for waste treatment with energy production, for water treatment…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Bernardinello Engineering SPA	Exact match	Cadoneghe, ItalyHQ recorded Sep 17, 2026	51-200	53 contacts →
	Exact match “Nata nel 1995 alle porte di Padova, Bernadinello Engineering si è ritagliata una posizione di assoluta eccellenza nel trattamento delle acque e nell’ingegneria di processo in…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Cogei S.R.L. Società Benefit	Exact match	Pozzuoli, ItalyHQ recorded Sep 17, 2026	51-200	50 contacts →
	Exact match “COGEI \| Costruiamo soluzioni a servizio dell’ambiente COGEI è specializzata nella Progettazione, Costruzione e Gestione di Impianti di Depurazione, combinando esperienza…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Co.Par.M. SRL	Exact match	Ferrandina, ItalyHQ recorded Sep 17, 2026	51-200	35 contacts →
	Exact match “Waste recovery machinery and facilities Founded by the Aliuzzi family in 1977, Co.par.m.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Orange SRL	Exact match	Florence, ItalyHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match “ORANGE, fondata nel 2007 con sede a Firenze, è un importante operatore nel settore italiano del trattamento delle acque industriali.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Simpec	Exact match	Nova Milanese, ItalyHQ recorded Sep 17, 2026	51-200	29 contacts →
	Exact match “Simpec is division of STA SpA from 2025/01/01.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	PPT Tecnologie Ambientali	Exact match	San Giovanni Lupatoto, ItalyHQ recorded Sep 17, 2026	11-50	28 contacts →
	Exact match “PPT Tecnologie Ambientali opera in campo ambientale dal 1982 e cura la realizzazione di impianti di trattamento in tutte le sue fasi: dalla studio preliminare alla progettazione e…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Torricelli	Exact match	Forlì, ItalyHQ recorded Sep 17, 2026	11-50	27 contacts →
	Exact match “Torricelli s.r.l, impianti per l’ecologia, opera su tutto il territorio nazionale ed estero per la progettazione, realizzazione e gestione di impianti in campo ambientale…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Protecno SRL	Exact match	Mondolfo, ItalyHQ recorded Sep 17, 2026	51-200	27 contacts →
	Exact match “Professional-Technology: these simple words sum up our management strategy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Darf S.R.L. Società Benefit	Exact match	Torre Del Greco, ItalyHQ recorded Sep 17, 2026	1-10	26 contacts →
	Exact match “DARF nasce nel 2018 a Torre del Greco, in provincia di Napoli, dalla volontà del gruppo Di Ruocco di investire nel settore delle infrastrutture pubbliche del Ciclo Idrico…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Waternext Group	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	11-50	25 contacts →
	Exact match “WaterNext Group is a trailblazing enterprise specializing in engineering, construction, and efficient plant management.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Idro Group SRL	Exact match	Seregno, ItalyHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “Idro è una società presente sul mercato da più di 40anni, altamente specializzata nel settore ambientale: progetta e realizza impianti per il trattamento delle acque reflue civili…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Dorabaltea Depurazione Acque Reflue	Exact match	Arezzo, ItalyHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “Dorabaltea® depurazione acque è oggi riconosciuta a livello internazionale come azienda di riferimento nel settore del trattamento delle acque reflue domestiche, assimilate ed…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	X2 Solutions SRL	Exact match	Mirandola, ItalyHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “X2 Solutions was born in 2011 from people coming from the waste water treatment market, with the idea to propose a complete products catalog, in order to better meet the costumers…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Aqseptence Group Carpi SRL	Exact match	Soliera, ItalyHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “Aqseptence Group è un fornitore leader mondiale di prodotti specializzati, attrezzature e soluzioni di sistema per filtrazione, separazione e tecnologia dell'acqua per varie…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	O.M.C. Collareda S.R.L	Exact match	Schio, ItalyHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “O.M.C.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Tecnoimpianti AIR & Water Treatment	Exact match	Pozzuolo Martesana, ItalyHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “Progettazione, realizzazione e fornitura di impianti di tipo industriale per il trattamento delle acque attraverso rimozione selettiva dei contaminanti, e di impianti per il…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Sireg Hydros	Exact match	(mb), ItalyHQ recorded Sep 17, 2026	1-10	15 contacts →
	Exact match “Sireg Hydros, part of the Sireg Group, has over 35 years of experience in the design and manufacture of advanced water treatment plants for primary, process, and wastewater…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Panta REI Water Solutions	Exact match	Fiesso D’artico, ItalyHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match “Panta Rei Water Solutions is a private company involved in the sector of the design and construction of water and waste water treatment plants.Thanks to a significant experience…” Recorded in the RevenueBase company graph · Sep 17, 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 “municipal wastewater treatment contractors”. 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 291 municipal wastewater treatment contractors based in Italy

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Municipal wastewater treatment contractors based in Italy at a glance

As of Sep 17, 2026

27.8%Verified-email coverage

10.2Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · Milan

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

134

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Italy, so it is reported there. Company counts and contact totals on this page are exact for Italy, over 291 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 Italy whose business descriptions match “municipal wastewater treatment contractors” 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 824 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 17, 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 “municipal wastewater treatment contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many municipal wastewater treatment contractors are there based in Italy?

RevenueBase identified 291 company matches for municipal wastewater treatment contractors associated with Italy 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?

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

Which city has the most municipal wastewater treatment contractors?

Milan leads with 12 company records, followed by Rome (8) and Bari (4).

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 824 professional contacts with verified work emails tracked across these 291 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 17, 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.