Company lists · Data refreshed September 2026

Top 25 Wastewater treatment system construction companies based in Italy

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 461 companies tracked

RevenueBase identified 461 wastewater treatment system construction companies headquartered in Italy as of September 2026 and tracks 4,790 professional contacts across them, including 1,427 with verified work emails. Roma is the largest hub.

This list covers wastewater treatment system construction companies headquartered in Italy, 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

461Companies

4,790Contacts tracked

1,427Verified emails

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The 25 largest wastewater treatment system construction companies based in Italy

Ranked by team size

Top 25 of 461 wastewater treatment system construction companies based in Italy, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater treatment system construction companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Fisia Italimpianti	Indirect evidence	Genova, ItalyHQ checked Sep 19, 2026	51-200	362 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
2	Matec Industries	Strong evidence	Massa, ItalyHQ checked Sep 19, 2026	201-500	135 contacts →
	Strong evidence “MATEC specializes in the design and development of wastewater treatment, filtration and aggregate washing plants.” Source: RevenueBase Database · checked Sep 19, 2026
3	Unidro	Partial evidence	Sesto San Giovanni, ItalyHQ checked Sep 19, 2026	51-200	126 contacts →
	Partial evidence “Established in 1971, Unidro is a global player in water, wastewater and utilities related process technology for the industrial markets.” Source: RevenueBase Database · checked Sep 19, 2026
4	ACR DI Reggiani Albertino SPA	Indirect evidence	Mirandola, ItalyHQ checked Sep 19, 2026	501-1,000	110 contacts →
	Indirect evidence “A.C.R.” Source: RevenueBase Database · checked Sep 19, 2026
5	RDR S.P.A. Società Benefit	Indirect evidence	Torre Del Greco, ItalyHQ checked Sep 19, 2026	201-500	109 contacts →
	Indirect evidence “RDR S.p.A.” Source: RevenueBase Database · checked Sep 19, 2026
6	Simam S.P.A	Indirect evidence	Senigallia, ItalyHQ checked Sep 19, 2026	51-200	96 contacts →
	Indirect evidence “SIMAM con oltre 180 tecnici, più della metà ingegneri, qualificati e di lunga esperienza operativa, è presente nei settori: trattamento acque, global service, risanamento e…” Source: RevenueBase Database · checked Sep 19, 2026
7	S.T.A. Società Trattamento Acque SPA	Indirect evidence	Mantova, ItalyHQ checked Sep 19, 2026	51-200	91 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
8	Sodai S.P.A	Indirect evidence	Milano, ItalyHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
9	Atlas Filtri	Strong evidence	Limena, ItalyHQ checked Sep 19, 2026	51-200	71 contacts →
	Strong evidence “Atlas Filtri is a dynamic Italian company: designing, developing, and producing components for filtration systems and equipment for water treatment applicable to domestic and…” Source: RevenueBase Database · checked Sep 19, 2026
10	Hysytech S.R.L	Partial evidence	Orbassano, ItalyHQ checked Sep 19, 2026	51-200	64 contacts →
	Partial evidence “Hysytech is an engineering and process equipment construction company established on 2003, in Turin, Italy.” Source: RevenueBase Database · checked Sep 19, 2026
11	Tm.E. S.P.A.	Strong evidence	La Spezia, ItalyHQ checked Sep 19, 2026	201-500	60 contacts →
	Strong evidence “Design, project management, supply, construction, commissioning and service of complete facilities, or their parts, for waste treatment with energy production, for water treatment…” Source: RevenueBase Database · checked Sep 19, 2026
12	Bernardinello Engineering SPA	Indirect evidence	Cadoneghe, ItalyHQ checked Sep 19, 2026	51-200	53 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
13	Cogei S.R.L. Società Benefit	Indirect evidence	Pozzuoli, ItalyHQ checked Sep 19, 2026	51-200	50 contacts →
	Indirect evidence “COGEI \| Costruiamo soluzioni a servizio dell’ambiente COGEI è specializzata nella Progettazione, Costruzione e Gestione di Impianti di Depurazione, combinando esperienza…” Source: RevenueBase Database · checked Sep 19, 2026
14	Sirai SRL	Indirect evidence	Venezia, ItalyHQ checked Sep 19, 2026	51-200	44 contacts →
	Indirect evidence “Dal 1988 operiamo nel settore ambientale e dal 2013 abbiamo sviluppato al nostro interno una divisione per la progettazione e realizzazione di opere infrastrutturali.” Source: RevenueBase Database · checked Sep 19, 2026
15	Sideridraulic System S.P.A	Indirect evidence	Cellatica, ItalyHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
16	Consulenze Ambientali SPA	Indirect evidence	Scanzorosciate, ItalyHQ checked Sep 19, 2026	51-200	39 contacts →
	Indirect evidence “Consulenze Ambientali nasce alla fine degli anni settanta, dall’idea di un gruppo di tecnici convinti di poter coniugare la protezione dell’ambiente con l’economia.” Source: RevenueBase Database · checked Sep 19, 2026
17	GDN SRL	Partial evidence	ItalyHQ checked Sep 19, 2026	11-50	39 contacts →
	Partial evidence “WHAT WE DO GDN srl Water Treatment is specialized in manufacturing, selling and supplying turnkey equipments for water treatment, starting from the pretreatment of raw water from…” Source: RevenueBase Database · checked Sep 19, 2026
18	Co.Par.M. SRL	Indirect evidence	Ferrandina, ItalyHQ checked Sep 19, 2026	51-200	35 contacts →
	Indirect evidence “Waste recovery machinery and facilities Founded by the Aliuzzi family in 1977, Co.par.m.” Source: RevenueBase Database · checked Sep 19, 2026
19	Nexteco S.R.L	Indirect evidence	Thiene, ItalyHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Società di ingegneria specializzata nella progettazione ed erogazione di servizi di ingegneria e management ambientali integrati per il mondo infrastrutturale e industriale.” Source: RevenueBase Database · checked Sep 19, 2026
20	Orange SRL	Indirect evidence	Florence, ItalyHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “ORANGE, fondata nel 2007 con sede a Firenze, è un importante operatore nel settore italiano del trattamento delle acque industriali.” Source: RevenueBase Database · checked Sep 19, 2026
21	Cesaro MAC Import	Indirect evidence	Eraclea, ItalyHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “Cesaro Mac.” Source: RevenueBase Database · checked Sep 19, 2026
22	MVT	Indirect evidence	Maserada Sul Piave, ItalyHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Con più di 57 anni di esperienza, MVT - MION VENTOLTERMICA progetta, costruisce e installa impianti AUTOMATIZZATI di trattamento rifiuti per la produzione di COMPOST e C.D.R…” Source: RevenueBase Database · checked Sep 19, 2026
23	Simpec	Indirect evidence	Nova Milanese, ItalyHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Simpec is division of STA SpA from 2025/01/01.” Source: RevenueBase Database · checked Sep 19, 2026
24	Socotis SPA	Indirect evidence	Segrate, ItalyHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “Dalla leggendaria epoca della ricostruzione post guerra, alle moderne sfide delle tecnologie eco-sostenibili: Socotis è un gruppo con la passione per il "costruire" nel DNA.” Source: RevenueBase Database · checked Sep 19, 2026
25	Fraccaroli E Balzan S.P.A	Indirect evidence	Pescantina, ItalyHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “OUR COMPANY: Fraccaroli & Balzan s.p.a.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: wastewater treatment system construction companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names wastewater treatment system construction companies.
Partial evidence: Its own public description names part of wastewater treatment system construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater treatment system construction companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 461 wastewater treatment system construction companies based in Italy

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Wastewater treatment system construction companies based in Italy at a glance

As of Sep 19, 2026

29.8%Verified-email coverage

10.4Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · Roma

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

165

11-50

219

51-200

201-500

501-1,000

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 461 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 wastewater treatment system construction companies, 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 Italy whose own description of what they do matches “wastewater treatment system construction companies”. 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 wastewater treatment system construction companies), 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 wastewater treatment system construction companies, and records with no verified work email. Companies headquartered outside Italy 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, 1,427 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 wastewater treatment system construction companies, 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 wastewater treatment system construction companies are there based in Italy?

RevenueBase identified 461 wastewater treatment system construction companies headquartered in Italy 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?

Fisia Italimpianti, headquartered in Genova, tops this list with the largest team on record.

Which city has the most wastewater treatment system construction companies?

Roma leads with 14 headquartered companies, followed by Milano (8) and Milano Mi (6).

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 1,427 verified decision-maker contacts tracked across these 461 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.